CN110194659A - A kind of dental prosthetic material based on nano zircite and alumina composite ceramic - Google Patents
A kind of dental prosthetic material based on nano zircite and alumina composite ceramic Download PDFInfo
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- CN110194659A CN110194659A CN201910508547.5A CN201910508547A CN110194659A CN 110194659 A CN110194659 A CN 110194659A CN 201910508547 A CN201910508547 A CN 201910508547A CN 110194659 A CN110194659 A CN 110194659A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/10—Ceramics or glasses
- A61L27/105—Ceramics or glasses containing Al2O3
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/12—Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/12—Materials or treatment for tissue regeneration for dental implants or prostheses
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/36—Glass starting materials for making ceramics, e.g. silica glass
Abstract
The present invention relates to a kind of dental prosthetic material based on nano zircite and alumina composite ceramic, the dental prosthetic material is prepared by the component of following parts by weight: partial size is in the micron-scale and micron order aluminium oxide below is 10~40 parts, aluminium oxide of the partial size more than nanoscale and nanoscale is 6~12 parts, zirconium oxide of the partial size more than nanoscale and nanoscale is 20~50 parts, glass-ceramic of the micropore size more than nanoscale and nanoscale is 31~52 parts, and the dental prosthetic material is prepared by following preparation method: being mixed under there are a certain amount of solvent or condition of no solvent according to above-mentioned component proportion, Centrifugal Infiltration slip casting is at base after the material obtained after mixing is carried out mixing and ball milling or is sanded, and the idiosome after drying is placed under high temperature and pressure and is sintered, it is based on The dental prosthetic material of nano zircite and alumina composite ceramic.
Description
Technical field
The present invention relates to inorganic composite materials fields, more particularly to one kind to be based on nano zircite and alumina composite ceramic
Dental prosthetic material.
Background technique
Ceramic material is can to reproduce nature thread form state, color and gloss (including fluorescence and opalescence) etc. to greatest extent at present
Artificial material.Especially zirconium oxide (ZrO2) ceramics, there is significant advantage in terms of gear division reparation with its excellent performance.
Wherein, bioceramic refers to a kind of ceramic material with specific biology or physiological function.Since bioceramic material has
The advantages that compatibility of good biocompatibility and biological tissue, corrosion resistance, sterilising and physical and chemical stability,
Increasingly consequence is occupied in oral cavity field.All-ceramic Dental Material can be divided into alumina base pottery according to main component difference
The types such as porcelain, zirconia-based ceramics and glass base ceramics.Wherein, zirconia-based ceramics are by outstanding mechanical performance and good
Aesthetic properties are shown one's talent in All-ceramic Dental Material, especially for All-ceramic material make more unit fixed bridges, planting body,
When the dummies such as telescope crown, zirconia-based ceramics replace the ceramics of other types and become preferred even unique selection.
Zirconium oxide intensity with higher and toughness, excellent biocompatibility and corrosion resistance, are that one kind has much potentiality
Dental prosthetic material.Especially tetragonal phase zirconium oxide, it has unique transformation toughening effect, can greatly improve zirconium oxide
The intensity and toughness of base all-ceramic prosthesis.However zirconium oxide is bio-inert material, it is non-degradable in oral environment, there is no from
Sub- release problem nor with tissue and oral secretion react.The Abutment being made by zirconia ceramics passes through tune
Color and gingival mucosa can reach optimal beautiful trade-off effect.And if Anterior Implant body base station is metal or alloy, it can lead
Cause gum edge burnt hair black, it is difficult to reach excellent aesthetic effect.
In general, seriously needing to pull out to tooth lesion or natural teeth defect patient, carrying out oral restoration can effectively more
Mend dental functions.However compared with natural teeth, there is also certain difference for material used for stomatological repair, can generate one to user
Fixing is rung.For dental prosthetic material, the wearability and fracture toughness of material are to evaluate the important finger of repair materials quality
Mark.Dental prosthetic material is there are commonly ceramic material and resin material, wherein resin material are small to the abrasion of natural teeth, still
Its wearability is poor, is also easy to produce loosening；Although ceramic material has good wearability, anti-aging and corrosion-resistant, pottery
Ceramic material itself is hard and crisp, is easy to appear rupture, it is therefore necessary to improve optimization to the performance of dental prosthetic material, reduce
The risk of clinic failure, realizes more preferably application demand.
Chinese patent (Publication No. CN105906334A) discloses a kind of ceramic material for oral restoration, by as follows
The component of parts by weight is prepared: zirconium oxide, nano aluminium oxide, niobium pentaoxide, rare earth oxide, rectorite, boronation two
Molybdenum, aluminium borate, silicon-calcium-magnesium whisker, fluor-apatite.Which disclose the preparation sides of the ceramic material for oral restoration
Method.The Vickers hardness of the standby ceramic material for oral restoration of the patent system is more than 21.4GPa, and bending strength is more than
963.2MPa, fracture toughness are higher than 16.3MPam1/2, the deficiency of the crisp and easy brittle failure of traditional ceramic material itself is improved, is mentioned
High clinical success rate, can be used as dental prosthetic material application.
Chinese patent (Publication No. CN108395246A) discloses a kind of system of high tenacity oral cavity Nano ceramic powder material
Preparation Method belongs to medical material tech field.The art solutions in ceramic system by for deposition molybdenum powder in mold and passing through molten
Melt coating modification, passes through ternary metal silicide Mo2The interatomic bond that the high rigidity and metallic bond and atom key of SiZr coexist closes
Property makes it be difficult to metal occurs when fretting wear occurs contacting with other metal parts surfaces to stick together and deform, has
Effect improves the wear-resisting property and mechanical property of Nano ceramic powder；And the patent uses nano oxidized modified zirconia composite ceramic powder, due to adopting
With with the identical method of preparation single-phase gels, i.e. change solution p value is prepared to obtain the co-precipitation object of two-phase mixtures liquid
Precipitate material there is excellent binding performance, effectively improve in the art solutions zirconium oxide to the toughening modifying of material
Degree improves the bond strength and mechanical property of the art solutions to a certain extent.
Above-mentioned patent is all made of by the nano-powders such as aluminium oxide, the zirconium oxide production higher ceramic material of intensity, but due to
Its nano powder surface is charged, and powder granule is thinner, and surface charge is more serious, mutually exclusive between powder, it is difficult to form closs packing
Green body, fracture toughness is poor, and big deflection limits its application in dental prosthetic material.
In addition, on the one hand since the understanding to those skilled in the art has differences；On the other hand since inventor makes
Lot of documents and patent are had studied when of the invention, but length limits and do not enumerate all details and content in detail, however this is absolutely
Non-present invention does not have the feature of these prior arts, and present invention has been provided with all features of the prior art, Er Qieshen
Ask someone to retain the right for increasing related art in the background technology.
Summary of the invention
For the deficiencies of the prior art, the present invention provides a kind of mouth based on nano zircite and alumina composite ceramic
Chamber repair materials, the dental prosthetic material are prepared by the component of following parts by weight: partial size is in the micron-scale and micron order
Aluminium oxide below is 10~40 parts, aluminium oxide of the partial size more than nanoscale and nanoscale is 6~12 parts, partial size is in nanoscale
And zirconium oxide more than nanoscale is 20~50 parts, glass ceramics of the micropore size more than nanoscale and nanoscale is 31~52
Part, and the dental prosthetic material is through the following steps that prepare: according to above-mentioned component proportion there are a certain amount of
Solvent or it is solvent-free under the conditions of mixed, by the material obtained after mixing carry out mixing and ball milling or be sanded after Centrifugal Infiltration infuse
Base is starched into, and the idiosome after drying is placed under high temperature and pressure and is sintered, is obtained based on nano zircite and alumina composite
The dental prosthetic material of ceramics.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be quasi-
The ZrO really weighed2, yttrium metallic stabilizer and deionized water the pH of its mixed solution is adjusted after mixing according to a certain percentage
Value makes it dry and carry out high temperature sintering under conditions of pH value is not less than 7, obtains the stable phase nanometer ZrO of doping yttrium metal2
Powder.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be quasi-
The Al really weighed2O3The pH value that its mixed solution is adjusted after mixing according to a certain percentage with deionized water keeps it not small in pH value
High temperature sintering is dried and carried out under conditions of 7, obtains Al2O3Powder.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: according to
Certain ratio is by nanometer ZrO2Powder and/Al2O3Powder carries out ball milling mixing by the way that ball-milling medium is added, by one after ball milling
The material for determining granularity obtains material slurry by spray drying.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be given birth to
At material slurry by metering pump import closed reactor in, adjust the device parameter in the closed reactor so that this is close
Closing the vapor generated in reaction kettle can be reacted with the material slurry contact, obtain solid material after the reaction was completed.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be through
The solid material obtained after closed reactor is placed in press under pressure, is compressed into embryo using cold isostatic pressing process
Body is simultaneously dried.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: by embryo
Body, which is transferred to be pre-sintered in equipment, is promoted to target temperature, heat preservation sintering one by room temperature for sintering temperature with certain heating rate
Pre-sintered body is obtained after the section time, to remove the intracorporal at least partly impurity of embryo.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be pre-
Sintered body, which is transferred in agglomerating chamber under nonoxidizing atmosphere and high temperature and pressure, is formed sintering, and heats removal pressure in stopping
Furnace cooling afterwards obtains the dental prosthetic material based on nano zircite and alumina composite ceramic.
According to a kind of preferred embodiment, aluminium oxide, the partial size of the partial size more than nanoscale and nanoscale exist
The particle size range of zirconium oxide more than nanoscale and nanoscale can be respectively 29~89nm.
According to a kind of preferred embodiment, the glass ceramics includes at least silica, sodium oxide molybdena, calcium oxide, five oxygen
Change one or several combined systems in two phosphorus.
Dental prosthetic material provided by the invention based on nano zircite and alumina composite ceramic at least has as follows
Advantageous effects:
(1) present invention is by selecting suitable glass ceramics such as silica, sodium oxide molybdena, calcium oxide, phosphorus pentoxide
In one or several combined systems, the compound additive as nano zircite, aluminium oxide can effectively accelerate mass transfer mistake
Journey and the different growth for inducing nano zircite, alumina host crystal grain, reduce its sintering temperature, at the same with it is nano oxidized
Zirconium, aluminium oxide are collectively formed polymorphic structures and effectively improve the toughness of the dental prosthetic material.
(2) by dental prosthetic material provided by the present invention, nano zircite, three groups of samples of aluminium oxide principal crystalline phase
Type and microstructure carry out test characterization, and its physicochemical property are compared, dental prosthetic material provided by the present invention
Fracture toughness, mechanical property, flexural strength obviously land higher than other two groups of samples, and the dental prosthetic material exists
The parts by weight of its nano zircite show optimal mechanical property when being 20 parts, and the dental prosthetic material is in its aluminium oxide
There is preferable toughening effect when parts by weight are 20 parts and show optimal fracture toughness.
Specific embodiment
A kind of dental prosthetic material based on nano zircite and alumina composite ceramic, the dental prosthetic material is by such as
The component of lower parts by weight is prepared: partial size is in the micron-scale and micron order aluminium oxide below is 10~40 parts, partial size is being received
Aluminium oxide more than meter level and nanoscale is 6~12 parts, zirconium oxide of the partial size more than nanoscale and nanoscale is 20~50 parts,
Glass ceramics of the micropore size more than nanoscale and nanoscale be 31~52 parts, and the dental prosthetic material be by with
It is prepared by lower step: according to above-mentioned component proportion there are a certain amount of solvent or it is solvent-free under the conditions of mixed, will
Centrifugal Infiltration slip casting is placed in high temperature at base, and by the idiosome after drying after the material obtained after mixing carries out mixing and ball milling or is sanded
It is sintered under high pressure, obtains the dental prosthetic material based on nano zircite and alumina composite ceramic.Wherein, slip casting
Molding just refers to that selection degumming agent (deflocculant) appropriate is uniformly suspended within powder raw material in solution, is tuned into mud, so
After be poured into spongy model (generally plaster mold) and suck moisture, by model forming at the method for green body.This side
Method is usually used in manufacturing complex-shaped, required precision not high domestic ceramics and architectural pottery.It can be inhaled based on graphite mold
The physical characteristic for receiving moisture, is made into the mud with mobility for ceramic powder, is then injected into porous mold (predominantly gypsum
Mould), moisture is just formd with certain thickness uniform mud layer, during dehydrating simultaneously after by mold (gypsum) sucking
The green body with some strength is formed, such mode is referred to as injection forming.
The present invention by select suitable glass ceramics for example silica, sodium oxide molybdena, calcium oxide, in phosphorus pentoxide
One or several combined systems can effectively accelerate mass transport process as compound additive and induce nano zircite, oxidation
The different growth of aluminum matrix crystal grain reduces its sintering temperature, while polymorphic knot is collectively formed with nano zircite, aluminium oxide
Structure and the toughness for effectively improving the dental prosthetic material.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be quasi-
Zirconium dioxide, yttrium metallic stabilizer and the deionized water really weighed adjusts its mixed solution after mixing according to a certain percentage
PH value makes it dry and carry out high temperature sintering under conditions of pH value is not less than 7, obtains the stable phase nanometer two of doping yttrium metal
Zirconium powder.Nano zircite has the characteristics that thermal shock resistance is strong, high temperature resistant, chemical stability are good, Material cladding is prominent,
It is compound by carrying out nano zircite with other materials such as aluminum oxide powder, using nano zirconium dioxide as disperse
Phase can greatly improve the performance parameter of material, improve its fracture toughness, bending strength etc..
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be quasi-
The aluminum oxide really weighed adjusts the pH value of its mixed solution after mixing according to a certain percentage with deionized water, make it in pH
High temperature sintering is dried and carried out to value under conditions of being not less than 7, obtains aluminum oxide powder.Sintering process is powder or powder pressure
Base is heated to then be cooled to the process of room temperature with certain method and speed lower than the temperature of the wherein fusing point of basis.
Being sintered the result is that bonding between powder particle, the intensity of sintered body increases, and the aggregation of powder particle is turned into crystalline substance
The agglomerate of grain, thus the product or material of physics, mechanical performance needed for obtaining.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: according to
Certain ratio is by nanometer ZrO2Powder and/aluminum oxide powder are by being added ball-milling medium progress ball milling mixing, by ball milling
The material of certain particle size afterwards obtains material slurry by spray drying.Wherein, spray drying is that systematization technique is applied to object
Expect a kind of dry method.In hothouse by solvent or diluent after being atomized, in the contact with hot-air, moisture rapid vaporization, i.e.,
Obtain dry products.The method can directly make the dry powdering of solution, emulsion or particulate preparation, can save devaporation, crushing etc.
Process.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be given birth to
At material slurry by metering pump import closed reactor in, adjust the device parameter in the closed reactor so that this is close
Closing the vapor generated in reaction kettle can be reacted with the material slurry contact, obtain solid material after the reaction was completed.Its
In, reaction kettle is made of autoclave body, kettle cover, collet, blender, transmission device, gland seal device, bearing etc..Agitating device is in Gao Jing
When bigger, multiple impellers leaf can be used, can also arbitrarily be matched acording to the requirement of user.Metering pump is also known as proportioning pump, is to ask to send
When liquid measure changes, it can be convenient accurately by the eccentric distance for adjusting eccentric wheel, realize changing the stroke of embolism.Pump
Flow adjusting be to drive adjusting screw rod rotation by rotation adjusting handle, to change the spacing between arcuate connecting rod, change plunger
(piston) shift motion in pump chamber determines the size of flow.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be through
The solid material obtained after closed reactor is placed in press under pressure, is compressed into embryo using cold isostatic pressing process
Body is simultaneously dried.Isostatic pressing technology in the prior art be it is a kind of using product in closed pressure vessel each to impartial super-pressure
Molding ultrahigh-pressure hydraulic sophisticated equipment under pressure state.Temperature height when isostatic pressing technology is by molding and consolidation, is divided into cold
Three kinds of static pressure, hot isostatic pressing different types such as equal static pressure, temperature.Wherein, cold isostatic pressing process of the present invention be at normal temperature,
Usually make thin wall wrap model material with rubber or plastics, is mainly used for powder body material molding by pressure medium of liquid, is further
Sintering, forging or hot isostatic pressing process provide green body.It the use of pressure is generally 100~630MPa.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: by embryo
Body, which is transferred to be pre-sintered in equipment, is promoted to target temperature, heat preservation sintering one by room temperature for sintering temperature with certain heating rate
Pre-sintered body is obtained after the section time, to remove the intracorporal at least partly impurity of embryo.Sintering process, which refers to, is changed into granular material
Dense body is a traditional technical process, can use this technique to produce ceramics, powder metallurgy, refractory material, superelevation
Adiabator etc..In general, powder is a kind of polycrystalline material, micro- knot by being sintered obtained dense body after overmolding
Structure is made of crystal, vitreum and stomata.Sintering process directly affects crystallite dimension, pore size and crystal boundary in microstructure
Shape and distribution, and then influence the performance of material.
According to a kind of preferred embodiment, the preparation method of the dental prosthetic material is at least included the following steps: will be pre-
Sintered body, which is transferred in agglomerating chamber under nonoxidizing atmosphere and high temperature and pressure, is formed sintering, and heats removal pressure in stopping
Furnace cooling afterwards obtains the dental prosthetic material based on nano zircite and alumina composite ceramic.Relatively, oxic gas
Atmosphere is more than the content of oxygen, should also include the gases such as the atmospheric carbon dioxide with oxidisability.It is high when oxidizing atmosphere is firing
When warm, furnace air supply is abundant, a kind of flame atmosphere generated in the case where fuel completely burned, and nonoxidizing atmosphere is
It does not at least include the environment of oxygen and carbon dioxide.
According to a kind of preferred embodiment, alumina in Nano level, nano zircite particle size range respectively can for 29~
89nm.The glass ceramics is including at least one or several groups in silica, sodium oxide molybdena, calcium oxide, phosphorus pentoxide
Zoarium system.Wherein, glass ceramics refers to by high temperature melt, molding, heat treatment and manufactured a kind of crystal phase in conjunction with glass phase
Composite material, refer to glass catalyst or nucleators effect under crystallize made of polycrystalline novel silicate material,
Obtained glass ceramics is fine and close, non-porous, the uniform mixture of quality of crystal phase and residual glass phase composition.Usual glass ceramics
The size of crystal can be from nanometer to micron order, amount of crystals is up to 50%~90%.
According to a kind of preferred embodiment, by means of differential thermal analysis DTA, X-ray diffraction analysis XRD material phase analysis, scanning
Electronic Speculum SEM microstructure observation, the observation of scanning tunneling microscope STM ultrastructure, infrared point of Fourier infrared spectrograph IR
Analysis etc., respectively to the dental prosthetic material, nano zircite, three groups of samples of aluminium oxide, principal crystalline phase type and microstructure
Test characterization is carried out, and compares the flexural strengths of three groups of samples, bulk density, Vickers hardness, thermal expansion coefficient and acidproof (alkali)
The physicochemical properties such as property.
Pass through the principal crystalline phase kind to dental prosthetic material provided by the present invention, three groups of nano zircite, aluminium oxide samples
Class and microstructure carry out test characterization, and its physicochemical property is compared, dental prosthetic material provided by the present invention
Fracture toughness, mechanical property, flexural strength obviously land higher than other two groups of samples, and the dental prosthetic material is at it
The parts by weight of nano zircite show optimal mechanical property when being 20 parts, weight of the dental prosthetic material in its aluminium oxide
Amount number has preferable toughening effect and shows optimal fracture toughness when being 20 parts.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention range and fall into this hair
Within bright protection scope.It will be understood by those skilled in the art that description of the invention is not constituted to right to be illustrative
It is required that limitation.Protection scope of the present invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of dental prosthetic material based on nano zircite and alumina composite ceramic, which is characterized in that repair in the oral cavity
Multiple material is prepared by the component of following parts by weight: partial size is in the micron-scale and micron order aluminium oxide below is 10~40
Part, aluminium oxide of the partial size more than nanoscale and nanoscale are 6~12 parts, zirconium oxide of the partial size more than nanoscale and nanoscale
For 20~50 parts, glass-ceramic of the micropore size more than nanoscale and nanoscale be 31~52 parts, and the oral restoration
Material is prepared by following preparation method:
It is mixed under there are a certain amount of solvent or condition of no solvent according to above-mentioned component proportion, the object that will be obtained after mixing
Centrifugal Infiltration slip casting is at base after material carries out mixing and ball milling or is sanded, and the idiosome after drying is placed under high temperature and pressure and is burnt
Knot, obtains the dental prosthetic material based on nano zircite and alumina composite ceramic.
2. dental prosthetic material according to claim 1, which is characterized in that the preparation method of the dental prosthetic material is extremely
Less the following steps are included: by the ZrO of precise2, after yttrium metallic stabilizer and deionized water mix according to a certain percentage
The pH value for adjusting its mixed solution makes it dry and carry out high temperature sintering under conditions of pH value is not less than 7, obtains doping yttrium gold
The stable phase nanometer ZrO of category2Powder.
3. the dental prosthetic material according to one of preceding claims, which is characterized in that the system of the dental prosthetic material
Preparation Method at least includes the following steps: by the Al of precise2O3It is mixed that it is adjusted after mixing according to a certain percentage with deionized water
The pH value for closing solution makes it dry and carry out high temperature sintering under conditions of pH value is not less than 7, obtains Al2O3Powder.
4. the dental prosthetic material according to one of preceding claims, which is characterized in that the system of the dental prosthetic material
Preparation Method at least includes the following steps: according to a certain percentage by nanometer ZrO2Powder and/Al2O3Powder is situated between by the way that ball milling is added
Matter carries out ball milling mixing, and the material of the certain particle size after ball milling is obtained material slurry by spray drying.
5. the dental prosthetic material according to one of preceding claims, which is characterized in that the system of the dental prosthetic material
Preparation Method at least includes the following steps: the material slurry of generation being imported in closed reactor by metering pump, it is closed to adjust this
Device parameter in reaction kettle is so that the vapor generated in the closed reactor can carry out instead with the material slurry contact
It answers, obtains solid material after the reaction was completed.
6. the dental prosthetic material according to one of preceding claims, which is characterized in that the system of the dental prosthetic material
Preparation Method at least includes the following steps: the solid material obtained after closed reactor is placed in press in certain pressure
Under, idiosome is compressed into using cold isostatic pressing process and is dried.
7. the dental prosthetic material according to one of preceding claims, which is characterized in that the system of the dental prosthetic material
Preparation Method at least includes the following steps: idiosome being transferred to and is pre-sintered sintering temperature in equipment with certain heating rate by room
Temperature is promoted to target temperature, and heat preservation sintering obtains pre-sintered body afterwards for a period of time, to remove the intracorporal at least partly impurity of embryo.
8. the dental prosthetic material according to one of preceding claims, which is characterized in that the system of the dental prosthetic material
Preparation Method at least includes the following steps: by pre-sintered body be transferred in agglomerating chamber under nonoxidizing atmosphere and high temperature and pressure carry out at
Shape sintering, and the furnace cooling after stopping heating removal pressure, obtain the institute based on nano zircite and alumina composite ceramic
State dental prosthetic material.
9. the dental prosthetic material according to one of preceding claims, which is characterized in that the partial size is in nanoscale and receives
The particle size range of the zirconium oxide of aluminium oxide, the partial size more than nanoscale and nanoscale more than meter level respectively can for 29~
89nm。
10. the dental prosthetic material according to one of preceding claims, which is characterized in that the glass-ceramic includes at least
Silica, sodium oxide molybdena, calcium oxide, one or several combined systems in phosphorus pentoxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910508547.5A CN110194659A (en) | 2019-06-12 | 2019-06-12 | A kind of dental prosthetic material based on nano zircite and alumina composite ceramic |
| CN202010533343.XA CN111533541B (en) | 2019-06-12 | 2020-06-11 | Oral cavity repairing material based on nano zirconia and alumina composite ceramic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910508547.5A CN110194659A (en) | 2019-06-12 | 2019-06-12 | A kind of dental prosthetic material based on nano zircite and alumina composite ceramic |
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| CN110194659A true CN110194659A (en) | 2019-09-03 |
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| CN201910508547.5A Pending CN110194659A (en) | 2019-06-12 | 2019-06-12 | A kind of dental prosthetic material based on nano zircite and alumina composite ceramic |
| CN202010533343.XA Active CN111533541B (en) | 2019-06-12 | 2020-06-11 | Oral cavity repairing material based on nano zirconia and alumina composite ceramic |
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| CN202010533343.XA Active CN111533541B (en) | 2019-06-12 | 2020-06-11 | Oral cavity repairing material based on nano zirconia and alumina composite ceramic |
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| CN112225560A (en) * | 2020-10-23 | 2021-01-15 | 陕西天璇涂层科技有限公司 | Solid phase method for preparing low-thermal-conductivity high-temperature thermal barrier ceramic CaMoNb2O9Method (2) |
| CN114368966A (en) * | 2021-03-26 | 2022-04-19 | 浙江丹斯登生物材料有限公司 | Zirconia-based all-ceramic denture and preparation method thereof |
| CN115400264A (en) * | 2022-08-15 | 2022-11-29 | 西南交通大学 | Preparation method of ceramic artificial joint opposite grinding pair |
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| CN1226053C (en) * | 2000-08-07 | 2005-11-09 | 松下电工株式会社 | Artificial joint made from zirconia-alumina composite ceramic |
| TW200500311A (en) * | 2003-01-28 | 2005-01-01 | Koninkl Philips Electronics Nv | Transparent zirconium oxide-tantalum and/or tantalum oxide coating |
| NZ551893A (en) * | 2004-07-06 | 2009-12-24 | Synthes Gmbh | Interference generating, colored coating for surgical implants and instruments |
| CN101926735B (en) * | 2009-06-24 | 2012-03-07 | 四川大学 | Fully ceramic dental prosthetic material and method for preparing same |
| CN102824656A (en) * | 2012-09-04 | 2012-12-19 | 中国地质大学（北京） | Zirconia, hydroxyapatite and magnesium phosphate laminar composite |
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| CN109942316A (en) * | 2019-02-01 | 2019-06-28 | 中国医科大学附属口腔医院 | A kind of enhancing zirconium dioxide surface hides the coating process of color porcelain shear strength |
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| CN112225560A (en) * | 2020-10-23 | 2021-01-15 | 陕西天璇涂层科技有限公司 | Solid phase method for preparing low-thermal-conductivity high-temperature thermal barrier ceramic CaMoNb2O9Method (2) |
| CN114368966A (en) * | 2021-03-26 | 2022-04-19 | 浙江丹斯登生物材料有限公司 | Zirconia-based all-ceramic denture and preparation method thereof |
| CN115400264A (en) * | 2022-08-15 | 2022-11-29 | 西南交通大学 | Preparation method of ceramic artificial joint opposite grinding pair |
| CN116023164A (en) * | 2023-03-29 | 2023-04-28 | 湖南康纳新材料有限公司 | Porous zirconia ceramic block for dental restoration and preparation method and application thereof |
| CN116023164B (en) * | 2023-03-29 | 2023-06-06 | 湖南康纳新材料有限公司 | Porous zirconia ceramic block for dental restoration and preparation method and application thereof |
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| Publication number | Publication date |
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| CN111533541B (en) | 2022-04-15 |
| CN111533541A (en) | 2020-08-14 |
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