CN102241515A - Ceramic with light weight, high strength and high toughness and preparation method thereof - Google Patents
Ceramic with light weight, high strength and high toughness and preparation method thereof Download PDFInfo
- Publication number
- CN102241515A CN102241515A CN2010101723921A CN201010172392A CN102241515A CN 102241515 A CN102241515 A CN 102241515A CN 2010101723921 A CN2010101723921 A CN 2010101723921A CN 201010172392 A CN201010172392 A CN 201010172392A CN 102241515 A CN102241515 A CN 102241515A
- Authority
- CN
- China
- Prior art keywords
- ceramic
- powder
- sintering
- cenosphere
- strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a ceramic with light weight, high strength and high toughness and a preparation method thereof. The method comprises the following steps: 1) presintering ceramic cenosphere powder to increase the strength of the ceramic cenosphere powder; 2) adding the presintered ceramic cenosphere powder in ceramic powder, adding the related additives; 3) selecting a moulding technology to mould the ceramic; 4) drying the obtained blank; and 5) sintering the dried blank. The invention provides the ceramic with light weight, high strength and high toughness and the preparation method thereof, wherein the ceramic cenosphere is a ceramic material toughened by the toughening body.
Description
Technical field
The present invention relates to the inorganic non-metallic ceramic field, particularly a kind of lightweight, high-strength, novel method that high tenacity is ceramic of preparing.
Background technology
Because the molecular arrangement and the chemical bond character of stupalith, determined that the crystal grain dislocation desity in the stupalith is low, sliding system is few, the energy of the nucleation of crackle and growth is little, thereby determined the fragility essence of stupalith.Fragility and low reliability have seriously limited the range of application of stupalith.Have only the fracture toughness property of improving pottery, realize the material highly malleablized, improve its reliability and work-ing life, stupalith really is used widely, therefore, the ceramic toughening technology is the focus of ceramic research always.
Toughness reinforcing essence is exactly to introduce the mechanism that absorbs energy to fracture in material, reduces the power of crack propagation, increases the resistance of crack propagation.Currently used toughness reinforcing means all are to manage to increase the energy that consumes in the breaking-down process, increase the roughness of surface of fracture simultaneously.Existing a lot of method for toughening,, transformation toughening toughness reinforcing, crystal whisker toughened, dispersed particle-strengthened and toughness reinforcing as macrofiber etc. combine several toughening mechanisms generation coordination plasticizing effect sometimes.Based on the research of the composite ceramic material of the different toughness reinforcing bodies of various addings, the strengthening and toughening mechanism of of proposition has that fiber (or whisker) bridging, fiber (or whisker) are extracted, crack deflection, particle pinning, the viscous deformation of ductility particulate, tiny crack are toughness reinforcing, transformation toughening, coordination plasticizing etc.
Though the ceramic toughening technology is numerous, various toughness reinforcing means and method respectively have characteristics again on preparation technology and toughening effect.The toughness reinforcing operation of particle dispersion is fairly simple, but toughening effect is not remarkable; Nano-scale particle is introduced in the ceramic matrix can obtain good enhancing toughening effect, grows up rapidly in the agglomerating process but prepare nano-powder, is difficult to prepare real nanocrystalline ceramics finished product; Transformation toughening at room temperature has good effect, but toughness reinforcing inefficacy under high temperature (more than 1000 ℃) condition; Ceramic fiber (or whisker) strengthening and toughening ceramic matric composite all has excellent mechanical property under room temperature and high temperature, whisker is simpler as the preparation technology of toughness reinforcing phase, fiber, crystal whisker toughened shortcoming are exactly that mixing uniformity is difficult to guarantee, and whisker is harmful to the person, and application is restricted.In recent years, people must be inspired by organic sphere biomaterial structure and property relationship, carry out the biomimetic features design of stupalith, make Si as copying bamboo-wood structure
3N
4/ BN fiber monolithic structure stupalith is copied the shell pearl layer structure and is made Si
3N
4/ BN laminated structure ceramics materials etc. also have certain toughening effect, but its shortcoming mainly is that to be parallel and perpendicular to the nature difference of interlayer direction bigger, is anisotropy.Simultaneously to improve be to be cost to sacrifice intensity to the toughness of this stratiform and fiber monolithic structure pottery, that is to say that though toughness obtains bigger improvement, intensity has but reduced.
Hollow ceramic microspheres is the small hollow ceramic spheroid of a kind of size, particle size range is at 0.01-1.0mm, have advantages such as light weight, low heat conduction, sound insulation, high-strength, wear-resisting, high dispersive, electrical insulating property and good thermostability, preparation cost are low, can be used as a kind of novel light material and satisfy organic filler, emulsion explosive, high-grade frie retardant coating, thermal insulation fire-resistant materials such as oil well cementation, automobile chassis antidetonation, hull armour plate, resin, the requirements such as heat preservation energy-saving of buildings laminated heat-preserving, sqouynd absorption lowering noise, external wall.
Summary of the invention
The object of the present invention is to provide a kind of lightweight, high-strength, novel method (or means) that high tenacity is ceramic of preparing, is strengthening and toughening body toughening ceramic material with the ceramic hollow microballon promptly.This method has universality for the ceramic powder of various material systems, can prepare various material systems lightweight, high-strength, high tenacity is ceramic, comprise: oxide compound and non-oxide ceramics powder, and contain coal gangue, flyash, mine tailing, loess of ceramic etc.
Technical scheme of the present invention is: a kind of lightweight, high-strength, preparation method that high tenacity is ceramic comprise following steps:
Step 1 is carried out presintering with ceramic hollow microballon powder, to improve the intensity of ceramic hollow microballon powder;
Step 2 joins the ceramic hollow microballon powder of above-mentioned pre-burning in the ceramic powder, and adds relevant additive;
Step 3 selects moulding process to carry out the moulding of pottery;
Step 4 is carried out drying to base substrate;
Step 5 is carried out sintering to the exsiccant base substrate.
Wherein, ceramic hollow microballon powder described in the step 1 is a generalized inorganic non-metallic cenosphere powder, comprise: oxide compound and non-oxidized substance cenosphere powder, and containing coal gangue, flyash, the mine tailing of ceramic, the cenosphere powder of loess powder, its add-on is the 1%-80% of ceramic powder quality.
The pre-burning sintering schedule of ceramic hollow microballon powder can be selected according to the self character of powder in the step 1, and sintering temperature is 800 ℃-1800 ℃, and soaking time is 0.5h-2h.
Additive in the step 2 is meant dispersion agent and/or softening agent and/or the sintering agent that needs in moulding and sintering process, wherein the kind of dispersion agent and content are determined according to the rheological of ceramic size, the dispersion agent add-on is the 0.1%-2% of ceramic powder quality, being used for of softening agent is dry-pressing formed, the forming method of injection molding, extrusion moulding, and the kind of sintering agent and content are determined according to the self character and the sintering schedule of stupalith.
Moulding process in the step 3 comprises: dry pressing, gel casting forming, direct coagulation casting, extrusion moulding, injection molding or hydrostatic profile.
Drying in the step 4 comprises that room temperature is dried in the shade and 50 ℃ of-60 ℃ of oven dry.
The described sintering of step 5 is meant the ceramic body of the preparation sintering in the sintering or the rotary kiln of directly packing into of packing in the saggar in sintering oven, sintering schedule can be selected according to the self character of stupalith, sintering temperature is 800 ℃-1800 ℃, and soaking time is 0.5h-2h.
Ceramic hollow microballon powder carries out presintering, and sintering atmosphere is air or nitrogen.
A kind of lightweight, high-strength, high tenacity is ceramic should pottery be the ceramic block that contains the even structure of cenosphere.
Wherein, the material system of cenosphere and ceramic block comprises at composition: contain Al
2O
3The Al of cenosphere
2O
3Pottery contains ZrO
2The ZrO of cenosphere
2Pottery contains ZrO
2The Al of cenosphere
2O
3Pottery contains Al
2O
3The ZrO of cenosphere
2Pottery contains Al
2O
3The Al of cenosphere
2O
3Pottery contains Si
3N
4The Si of cenosphere
3N
4Pottery.
Beneficial effect of the present invention is: because the raw material that uses is a ceramic hollow microballon powder, and light weight, and also after the pre-burning of ceramic hollow microballon powder process, intensity improves greatly, has reduced the destruction of moulding process to the powder hollow structure effectively.Ceramic powder forms between the ceramic hollow microballon and is similar to the structure of intergranular in conjunction with phase, the bonding force height, and the ceramic hollow microballon makes the intensity of stupalith be improved as rigid particles by mechanism such as particle pinning, crack deflection, dispersion-strengtheneds simultaneously.In addition, the ceramic hollow microballon makes crackle deviation repeatedly, and extensions path prolongs, and increases the energy that consumes in the breaking-down process by crack deflection, particle pinning, makes the toughness of stupalith be largely increased.This technology sample rate is low, the intensity height, and the toughness height, preparation technology is simple and direct, flexible, and convenient operation and control is widely applicable, is easy to moulding, is easy to produce complicated form part, the production efficiency height.
Description of drawings
Fig. 1 is the synoptic diagram of cenosphere toughening ceramic material.
Embodiment
Fig. 1 is the synoptic diagram of cenosphere toughening ceramic material.In order to guarantee the sufficiently high intensity of stupalith, bonding force is strong between the ceramic crystalline grain, and the extended mode of crackle is a transgranular fracture, thereby has guaranteed that material has higher intensity.When crack propagation during to hollow ball, energy obtains discharging, and crackle further deflection simultaneously, and when through a plurality of hollow ball, the energy of crack propagation is fully dissipated, thus crackle end, play the effect that increases toughness of material.
A kind of lightweight of the present invention, high-strength, preparation method that high tenacity is ceramic comprise following steps:
Step 1 is carried out presintering with ceramic hollow microballon powder, to improve the intensity of ceramic hollow microballon powder;
Step 2 joins the ceramic hollow microballon powder of above-mentioned pre-burning in the ceramic powder, and adds relevant additive;
Step 3 selects moulding process to carry out the moulding of pottery;
Step 4 is carried out drying to base substrate;
Step 5 is carried out sintering to the exsiccant base substrate.
Ceramic hollow microballon powder carries out presintering, sintering atmosphere is air or nitrogen, different powder systems is selected different sintering atmospheres, for example for the presintering under nitrogen atmosphere of silicon nitride cenosphere, and can be for other oxide ceramics such as aluminum oxide, zirconium whites in presintering under the air atmosphere.
Wherein, ceramic hollow microballon powder described in the step 1 can be a generalized inorganic non-metallic cenosphere powder, comprise: oxide compound and non-oxidized substance cenosphere powder, and containing coal gangue, flyash, the mine tailing of ceramic, the cenosphere powder of loess powder, its add-on is the 1%-80% of ceramic powder quality.
Wherein, the pre-burning sintering schedule of ceramic hollow microballon powder can be selected according to the self character of powder in the step 1, and sintering temperature is 800 ℃-1800 ℃, and soaking time is 0.5h-2h.
Wherein, additive in the step 2 is meant dispersion agent, softening agent, the sintering agent that needs in moulding and sintering process, wherein the kind of dispersion agent and content are determined according to the rheological of ceramic size, the dispersion agent add-on is the 0.1%-2% of ceramic powder quality, being used for of softening agent is dry-pressing formed, the forming method of injection molding, extrusion moulding, and the kind of sintering agent and content are determined according to the self character and the sintering schedule of stupalith.
Here need to prove that wherein dispersion agent is mainly used in colloidal formation technologies such as gel injection molding and forming technology, the present invention does not rely on the selection of specific dispersant, as long as dispersion agent can be so that ceramic powder suitably disperses in slurry.The example of some operable dispersion agents is ammonium polyacrylate, Tetramethylammonium hydroxide, ammonium citrate, ammonium polymethacrylate salt, Tetramethyl Ethylene Diamine, Sodium hexametaphosphate 99 etc.In order to obtain better dispersion effect, can select corresponding dispersion agent at different powders, select ammonium citrate, beta-silicon nitride powder to select Tetramethylammonium hydroxide etc. as Zirconium powder.The dispersion agent add-on is generally the 0.1%-2% of ceramic powder quality.And forming method such as that softening agent is mainly used in is dry-pressing formed, injection molding, extrusion moulding, its kind and content are determined according to moulding process; Sintering agent is according to existing common prescription, and its kind and content are determined according to the self character and the sintering schedule of stupalith.The selection and the content of above additive are all known by those skilled in the art.
Wherein, the moulding process in the step 3 comprises: dry pressing, gel casting forming, direct coagulation casting, extrusion moulding, injection molding or hydrostatic profile.
Wherein, the drying in the step 4 comprises that room temperature is dried in the shade and 50 ℃ of-60 ℃ of oven dry.
Wherein, the described sintering of step 5 is meant the ceramic body of the preparation sintering in the sintering or the rotary kiln of directly packing into of packing in the saggar in sintering oven, sintering schedule can be selected according to the self character of stupalith, and sintering temperature is 800 ℃-1800 ℃, and soaking time is 0.5h-2h.
Wherein, this pottery can be selected the ceramic block of the even structure that contains cenosphere for use.
The material system of cenosphere and ceramic block is adjustable flexibly on forming, and comprises: contain Al
2O
3The Al of cenosphere
2O
3Pottery contains ZrO
2The ZrO of cenosphere
2Pottery contains ZrO
2The Al of cenosphere
2O
3Pottery contains Al
2O
3The ZrO of cenosphere
2Pottery contains Al
2O
3The Al of cenosphere
2O
3Pottery contains Si
3N
4The Si of cenosphere
3N
4Pottery.
Embodiment 1: the preparation of the silicon nitride ceramic material of lightweight, high-strength, high tenacity
At first silicon nitride cenosphere powder is carried out pre-burning, sintering schedule is: with speed is that 10 ℃/min heats up, and sintering temperature is 1600 ℃, sintering under nitrogen atmosphere, and the soaking time in the time of 1600 ℃ is 0.5 hour.With monomer acrylamide and linking agent N, N '-methylene-bisacrylamide is water-soluble, monomer concentration is 14.5%, crosslinker concentration is 0.5%, form the monomer premixed liquid, in monomer premixed liquid 80mL, add beta-silicon nitride powder 107.1g, add the sintering agent aluminum oxide powder 2.99g of silicon nitride powder body burden 2.5% and the yttrium oxide powder 8.86g of silicon nitride powder body burden 7.5%, dispersion agent buck agent 1.19g, silicon nitride cenosphere powder 11.9g stirs and obtains ceramic size, the adding volume fraction is 0.5% catalyst n in above-mentioned slurry, N, N ', N '-Tetramethyl Ethylene Diamine, stir then, add volume fraction again and be 2% initiator ammonium persulfate, inject mould after stirring at once, treat slurry be gel after the demoulding obtain wet base.The base that will wet carries out drying at room temperature or oven drying, carries out sintering by following sintering schedule then and obtains silicon nitride ceramics: with speed is that 10 ℃/min heats up, and sintering temperature is 1750 ℃, sintering under nitrogen atmosphere, and the soaking time in the time of 1750 ℃ is 1 hour.Performances such as the volume density of sintered compact, intensity, fracture toughness property are tested.The result shows: the silicon nitride ceramics that makes, and volume density is 3, and bending strength reaches 500MPa, and fracture toughness property is 9MPam
1/2.
Embodiment 2: the preparation of the silicon nitride ceramic material of lightweight, high-strength, high tenacity
In beta-silicon nitride powder 107.1g, add silicon nitride cenosphere powder 11.9g, sintering agent aluminum oxide powder 2.99g and yttrium oxide powder 8.86g, add alcohol and abrading-ball wet-milling 24h, after the drying and screening, add 5% paraffin as forming agent, in punching block, be pressed into rectangular sample, pressure is 120Mpa, dewaxing back sintering.Performances such as the volume density of sintered compact, intensity, fracture toughness property are tested.The result shows: the silicon nitride ceramics that makes, and volume density is 3.2, and bending strength reaches 550MPa, and fracture toughness property is 9MPam
1/2
Embodiment 3: the preparation of the alumina ceramic material of lightweight, high-strength, high tenacity
With monomer acrylamide and linking agent N, N '-methylene-bisacrylamide is water-soluble, monomer concentration is 14.5%, crosslinker concentration is 0.5%, form the monomer premixed liquid, adding alumina powder jointed volume fraction in monomer premixed liquid 80mL is 320g, add the sintering agent magnesia powder 8g of aluminum oxide powder body burden 2.5% and the sintering agent silicon dioxide powder 8g of aluminum oxide powder body burden 2.5%, dispersion agent ammonium citrate 1g, aluminum oxide cenosphere powder 16g stirs and obtains ceramic size, the adding volume fraction is 0.5% catalyst n in above-mentioned slurry, N, N ', N '-Tetramethyl Ethylene Diamine, stir then, add volume fraction again and be 2% initiator ammonium persulfate, inject mould after stirring at once, treat slurry be gel after the demoulding obtain wet base.The base that will wet carries out drying at room temperature or oven drying, carries out sintering by following sintering schedule then and obtains silicon nitride ceramics: with speed was that 10 ℃/min heats up, 1560 ℃ of insulations 1 hour.Performances such as the volume density of sintered compact, intensity, fracture toughness property are tested.The result shows: the alumina-ceramic that makes, and volume density is 3.3, and bending strength reaches 380MPa, and fracture toughness property is 5.1MPam
1/2.
Embodiment 4: the preparation of the alumina ceramic material of lightweight, high-strength, high tenacity
Aluminum oxide cenosphere 10g, sintering agent magnesia powder 2.5g and the silica powder 2.5g of the 40-80 μ m of adding 5% in alumina powder jointed 100g, add alcohol and abrading-ball wet-milling 24h, after the drying and screening, add 5% paraffin as forming agent, in punching block, be pressed into rectangular sample, pressure is 120Mpa, dewaxing back sintering.Performances such as the volume density of sintered compact, intensity, fracture toughness property are tested.The result shows: the silica/alumina porcelain that makes, and volume density is 3.0, and bending strength reaches 399MPa, and fracture toughness property is 5.5MPam
1/2
Claims (10)
1. a lightweight, high-strength, preparation method that high tenacity is ceramic is characterized in that, comprise following steps:
Step 1 is carried out presintering with ceramic hollow microballon powder, to improve the intensity of ceramic hollow microballon powder;
Step 2 joins the ceramic hollow microballon powder of above-mentioned pre-burning in the ceramic powder, and adds relevant additive;
Step 3 selects moulding process to carry out the moulding of pottery;
Step 4 is carried out drying to base substrate;
Step 5 is carried out sintering to the exsiccant base substrate.
2. a kind of lightweight according to claim 1, high-strength, preparation method that high tenacity is ceramic, it is characterized in that: the ceramic hollow microballon powder described in the step 1 is a generalized inorganic non-metallic cenosphere powder, comprise: oxide compound and non-oxidized substance cenosphere powder, and containing coal gangue, flyash, the mine tailing of ceramic, the cenosphere powder of loess powder, its add-on is the 1%-80% of ceramic powder quality.
3. a kind of lightweight according to claim 1, high-strength, preparation method that high tenacity is ceramic, it is characterized in that: the pre-burning sintering schedule of ceramic hollow microballon powder can be selected according to the self character of powder in the step 1, sintering temperature is 800 ℃-1800 ℃, and soaking time is 0.5h-2h.
4. a kind of lightweight according to claim 1, high-strength, preparation method that high tenacity is ceramic, it is characterized in that: the additive in the step 2 is meant dispersion agent and/or softening agent and/or the sintering agent that needs in moulding and sintering process, wherein the kind of dispersion agent and content are determined according to the rheological of ceramic size, the dispersion agent add-on is the 0.1%-2% of ceramic powder quality, that softening agent is used for is dry-pressing formed, the forming method of injection molding, extrusion moulding, and the kind of sintering agent and content are determined according to the self character and the sintering schedule of stupalith.
5. a kind of lightweight according to claim 1, high-strength, preparation method that high tenacity is ceramic, it is characterized in that: the moulding process in the step 3 comprises: dry pressing, gel casting forming, direct coagulation casting, extrusion moulding, injection molding or hydrostatic profile.
6. a kind of lightweight according to claim 1, high-strength, preparation method that high tenacity is ceramic is characterized in that: the drying in the step 4 comprises that room temperature is dried in the shade and 50 ℃ of-60 ℃ of oven dry.
7. a kind of lightweight according to claim 1, high-strength, preparation method that high tenacity is ceramic, it is characterized in that: the described sintering of step 5 is meant the ceramic body of the preparation sintering in the sintering or the rotary kiln of directly packing into of packing in the saggar in sintering oven, sintering schedule can be selected according to the self character of stupalith, sintering temperature is 800 ℃-1800 ℃, and soaking time is 0.5h-2h.
8. a kind of lightweight as claimed in claim 1, high-strength, preparation method that high tenacity is ceramic is characterized in that ceramic hollow microballon powder carries out presintering, and sintering atmosphere is air or nitrogen.
A lightweight, high-strength, high tenacity is ceramic, it is characterized in that, this pottery is the ceramic block that contains the even structure of cenosphere.
10. a kind of lightweight according to claim 9, high-strength, high tenacity is ceramic, it is characterized in that, the material system of cenosphere and ceramic block comprises at composition: contain Al
2O
3The Al of cenosphere
2O
3Pottery contains ZrO
2The ZrO of cenosphere
2Pottery contains ZrO
2The Al of cenosphere
2O
3Pottery contains Al
2O
3The ZrO of cenosphere
2Pottery contains Al
2O
3The Al of cenosphere
2O
3Pottery contains Si
3N
4The Si of cenosphere
3N
4Pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101723921A CN102241515A (en) | 2010-05-14 | 2010-05-14 | Ceramic with light weight, high strength and high toughness and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101723921A CN102241515A (en) | 2010-05-14 | 2010-05-14 | Ceramic with light weight, high strength and high toughness and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102241515A true CN102241515A (en) | 2011-11-16 |
Family
ID=44959798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101723921A Pending CN102241515A (en) | 2010-05-14 | 2010-05-14 | Ceramic with light weight, high strength and high toughness and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102241515A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496999A (en) * | 2013-09-18 | 2014-01-08 | 清华大学 | Method for preparing porous ceramics from hollow ceramic ball |
| CN105263886A (en) * | 2013-06-03 | 2016-01-20 | 电化株式会社 | Resin-impregnated boron nitride sintered body and use for same |
| CN105473532A (en) * | 2013-05-20 | 2016-04-06 | 康宁股份有限公司 | Porous ceramic article and method of manufacturing the same |
| CN108046779A (en) * | 2017-12-19 | 2018-05-18 | 华中科技大学 | The method that labyrinth hollow ball ceramic part is prepared using selective laser sintering |
| CN108856703A (en) * | 2018-06-29 | 2018-11-23 | 中国电子科技集团公司第二十六研究所 | The manufacturing method of two-phase sphere material and its manufacturing device, manufacturing method and plate |
| CN110092646A (en) * | 2019-05-30 | 2019-08-06 | 陕西理工大学 | The preparation method of one type lattice-site battle array reinforced phase ceramic composite |
| CN110898683A (en) * | 2019-10-18 | 2020-03-24 | 三达膜科技（厦门）有限公司 | Preparation method of ceramic filtering membrane |
| CN111393181A (en) * | 2020-03-20 | 2020-07-10 | 安徽金岩高岭土科技有限公司 | Preparation method of full-closed-pore porous mullite ceramic based on direct solidification injection molding |
| CN114292112A (en) * | 2022-01-10 | 2022-04-08 | 清华大学 | High-toughness ceramic material with bionic clay brick structure and preparation method thereof |
| CN114380504A (en) * | 2022-01-29 | 2022-04-22 | 山东国瓷功能材料股份有限公司 | Microcrystalline glass composite material and preparation method and application thereof |
| CN114644459A (en) * | 2022-03-17 | 2022-06-21 | 山东国瓷功能材料股份有限公司 | Lithium silicate glass ceramic, preparation method thereof and obtained restoration |
| CN114671615A (en) * | 2022-03-17 | 2022-06-28 | 山东国瓷功能材料股份有限公司 | Lithium silicate glass ceramic, preparation method thereof and obtained prosthesis |
| CN114751739A (en) * | 2022-04-07 | 2022-07-15 | 陕西国防工业职业技术学院 | Process for preparing light building material by using fly ash |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554616A (en) * | 2003-12-24 | 2004-12-15 | 浙江大学 | Method for preparing ligh high strength aluminium oxide hollow ball ceramic |
| CN1994964A (en) * | 2006-12-29 | 2007-07-11 | 辽宁省轻工科学研究院 | Composite alumina ceramic core material adopting alumina hollow sphere and its forming preparation process |
-
2010
- 2010-05-14 CN CN2010101723921A patent/CN102241515A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554616A (en) * | 2003-12-24 | 2004-12-15 | 浙江大学 | Method for preparing ligh high strength aluminium oxide hollow ball ceramic |
| CN1994964A (en) * | 2006-12-29 | 2007-07-11 | 辽宁省轻工科学研究院 | Composite alumina ceramic core material adopting alumina hollow sphere and its forming preparation process |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105473532A (en) * | 2013-05-20 | 2016-04-06 | 康宁股份有限公司 | Porous ceramic article and method of manufacturing the same |
| CN105263886A (en) * | 2013-06-03 | 2016-01-20 | 电化株式会社 | Resin-impregnated boron nitride sintered body and use for same |
| CN103496999B (en) * | 2013-09-18 | 2015-10-28 | 清华大学 | A kind of method adopting ceramic hollow ball to prepare porous ceramics |
| CN103496999A (en) * | 2013-09-18 | 2014-01-08 | 清华大学 | Method for preparing porous ceramics from hollow ceramic ball |
| CN108046779A (en) * | 2017-12-19 | 2018-05-18 | 华中科技大学 | The method that labyrinth hollow ball ceramic part is prepared using selective laser sintering |
| CN108856703A (en) * | 2018-06-29 | 2018-11-23 | 中国电子科技集团公司第二十六研究所 | The manufacturing method of two-phase sphere material and its manufacturing device, manufacturing method and plate |
| CN110092646B (en) * | 2019-05-30 | 2021-11-12 | 陕西理工大学 | Preparation method of lattice-like lattice reinforced phase ceramic composite material |
| CN110092646A (en) * | 2019-05-30 | 2019-08-06 | 陕西理工大学 | The preparation method of one type lattice-site battle array reinforced phase ceramic composite |
| CN110898683A (en) * | 2019-10-18 | 2020-03-24 | 三达膜科技（厦门）有限公司 | Preparation method of ceramic filtering membrane |
| CN111393181A (en) * | 2020-03-20 | 2020-07-10 | 安徽金岩高岭土科技有限公司 | Preparation method of full-closed-pore porous mullite ceramic based on direct solidification injection molding |
| CN114292112A (en) * | 2022-01-10 | 2022-04-08 | 清华大学 | High-toughness ceramic material with bionic clay brick structure and preparation method thereof |
| CN114380504A (en) * | 2022-01-29 | 2022-04-22 | 山东国瓷功能材料股份有限公司 | Microcrystalline glass composite material and preparation method and application thereof |
| CN114380504B (en) * | 2022-01-29 | 2023-12-26 | 山东国瓷功能材料股份有限公司 | Microcrystalline glass composite material and preparation method and application thereof |
| CN114644459A (en) * | 2022-03-17 | 2022-06-21 | 山东国瓷功能材料股份有限公司 | Lithium silicate glass ceramic, preparation method thereof and obtained restoration |
| CN114671615A (en) * | 2022-03-17 | 2022-06-28 | 山东国瓷功能材料股份有限公司 | Lithium silicate glass ceramic, preparation method thereof and obtained prosthesis |
| CN114671615B (en) * | 2022-03-17 | 2024-01-16 | 山东国瓷功能材料股份有限公司 | Lithium silicate glass ceramic, preparation method thereof and obtained prosthesis |
| CN114644459B (en) * | 2022-03-17 | 2024-01-16 | 山东国瓷功能材料股份有限公司 | Lithium silicate glass ceramic, preparation method thereof and obtained prosthesis |
| CN114751739A (en) * | 2022-04-07 | 2022-07-15 | 陕西国防工业职业技术学院 | Process for preparing light building material by using fly ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102241515A (en) | Ceramic with light weight, high strength and high toughness and preparation method thereof | |
| WO2022144014A1 (en) | Mullite-based micro-nano-porous heat insulating refractory material and preparation method therefor | |
| CN107032797B (en) | Ceramic-based interlayer composite material based on photocuring molding and preparation method thereof | |
| Gu et al. | Enhancement of the thermal shock resistance of MgO–C slide plate materials with the addition of nano-ZrO2 modified magnesia aggregates | |
| CA2494051A1 (en) | Lightweight proppant and method of making same | |
| JPH0242796B2 (en) | ||
| CN105036751A (en) | Method for preparing ceramic through micro-nano grain-size grading | |
| Wan et al. | The microstructure and mechanical properties of porous silicon nitride ceramics prepared via novel aqueous gelcasting | |
| CN1872796A (en) | Method for producing kiln furniture product of andalusite | |
| CN104129979A (en) | Calcium feldspar porous ceramics with controllable structure and adjustable performance and preparation method thereof | |
| CN100436369C (en) | Method for preparing corundum bricks composite with Nano alpha-Al2O3 | |
| CN103910520B (en) | Preparation method for aluminium oxide porous ceramic | |
| CN103922750A (en) | Wear-resistant silicon nitride ceramic material and preparation method thereof | |
| CN112062515B (en) | High-strength geopolymer closed-cell foam material prepared from silicon carbide and preparation method thereof | |
| CN104276815B (en) | A kind of high heat conduction oxide ceramic material and preparation method thereof | |
| CN106699141B (en) | In-situ preparation CM2A8Complex phase enhances pouring materialfor steel ladle and preparation method thereof | |
| KR20230000389A (en) | Sintering-promoting agent for preparing silica bricks, compound silica brick, and preparation method therefor | |
| CN109320257A (en) | A kind of preparation method of high intensity high porosity porous silicon nitride ceramic | |
| CN108117381A (en) | A kind of inertia composite calcining-endure plate and preparation method thereof | |
| CN108358560B (en) | Permeable pavement brick | |
| CN108285350B (en) | Ternary composite silicon carbide refractory material and preparation method thereof | |
| CN108585825A (en) | A kind of magnesium aluminate spinel base wave transparent heat-barrier material and preparation method thereof | |
| JPS6410469B2 (en) | ||
| CN1814574A (en) | Light composite baking-free brick for nitrogen kiln and its preparing method | |
| CN102030517A (en) | Structural-thermal-insulation integrated and high-strength alumina bubble ceramic and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |