CN114804931A - Low-temperature corrosion method for AlON transparent ceramic - Google Patents

Low-temperature corrosion method for AlON transparent ceramic Download PDF

Info

Publication number
CN114804931A
CN114804931A CN202210511364.0A CN202210511364A CN114804931A CN 114804931 A CN114804931 A CN 114804931A CN 202210511364 A CN202210511364 A CN 202210511364A CN 114804931 A CN114804931 A CN 114804931A
Authority
CN
China
Prior art keywords
transparent ceramic
alon transparent
meshes
sintering
alon
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.)
Granted
Application number
CN202210511364.0A
Other languages
Chinese (zh)
Other versions
CN114804931B (en
Inventor
张朝晖
徐天豪
程兴旺
贾晓彤
刘罗锦
李先雨
贾兆虎
刘娅
冯向向
王强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Technology BIT
Original Assignee
Beijing Institute of Technology BIT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Technology BIT filed Critical Beijing Institute of Technology BIT
Priority to CN202210511364.0A priority Critical patent/CN114804931B/en
Publication of CN114804931A publication Critical patent/CN114804931A/en
Application granted granted Critical
Publication of CN114804931B publication Critical patent/CN114804931B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/008—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding ceramics, pottery, table ware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
    • C04B41/5338—Etching
    • C04B41/5353—Wet etching, e.g. with etchants dissolved in organic solvents

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention provides a low-temperature corrosion method of AlON transparent ceramic, which comprises the following steps: 1) sintering AlON transparent ceramic: firstly, Al is added 2 O 3 Uniformly mixing the powder, AlN powder and a sintering aid, then loading the mixture into a graphite mold, placing the graphite mold into discharge plasma sintering equipment for high-temperature sintering, and cooling the graphite mold along with a furnace after sintering is finished to obtain an AlON transparent ceramic sample; 2) grinding and polishing the surface of the AlON transparent ceramic: grinding an AlON transparent ceramic sample by using a diamond sand disc from thick to thin, and then coating diamond polishing paste on polishing flannelette for polishing until the mirror surface is bright; 3) chemical etching of the AlON transparent ceramic: placing an AlON transparent ceramic sample in a reaction vessel containing concentrated phosphoric acid to start corrosion; after the corrosion is completed, the sample is immersed in clear water and then taken out and washed with a large amount of flowing clear water. The invention has simple and safe operationThe method has the advantages of low energy consumption, short required time, obvious etched AlON transparent ceramic grains and clear grain boundary.

Description

Low-temperature corrosion method for AlON transparent ceramic
Technical Field
The invention relates to a low-temperature corrosion method for AlON transparent ceramic, belonging to the technical field of preparation of transparent ceramic materials
Background
The AlON transparent ceramic has good high temperature resistance, thermal vibration stability, erosion resistance, light transmission and processability, has good light transmission in the range from near ultraviolet light to mid-infrared light (0.2-5.0 mu m), has the transmittance of over 80 percent, has isotropic light transmission, and is widely applied to the fields of national defense and civil use. The existing AlON transparent ceramic sintering method mainly comprises pressureless sintering, hot-pressing sintering and the like, but has long sintering time, high molding temperature, low density of the prepared AlON transparent ceramic and unsatisfactory mechanical property. And the discharge plasma sintering (SPS) is used as a powder metallurgy means, so that the low-temperature rapid sintering of the AlON transparent ceramic can be realized, and the formed sample has high density and good mechanical property.
The microscopic morphology analysis is an important detection means for characterizing the ceramics according to relevant standards and regulations, and the grain size, the grain shape, the grain boundary smoothness and the distribution of internal microstructure defects and pores of the ceramics can be observed through the microscopic morphology. And the AlON transparent ceramic has good oxidation resistance and high chemical stability, and the observation of the microstructure of the AlON transparent ceramic usually depends on high-temperature thermal corrosion. The high-temperature hot corrosion temperature of the AlON transparent ceramic generally exceeds 1700 ℃, and the heat preservation is needed for a long time.
Under the condition that the temperature keeping time is 150min, Wubo of the university of maritime affairs carries out thermal corrosion on the AlON transparent ceramic at different sintering temperatures. The method has the advantages of long time, corrosion temperature of over 1700 ℃, large energy consumption and damage to heating instruments.
In the research of a solid-phase reaction method and a carbon thermal reduction nitridation method for preparing the AlON transparent ceramic, the AlON transparent ceramic is corroded by a high-temperature thermal corrosion method, the heating temperature is 1800 ℃, the heat preservation time is 60min, and the whole process is carried out in a nitrogen atmosphere. The crystal grains corroded by the method are coarse, and the corrosion process is difficult to control.
The AlON transparent ceramic has long time in the thermal corrosion process, high cost, large energy consumption and complex operation, and the structure of the AlON transparent ceramic is changed to a certain extent (for example, crystal grains are inevitably grown) in the process, thereby influencing the observation of the original microstructure structure of the AlON transparent ceramic. Therefore, finding an etching method that is simple and feasible and can maintain the original microstructure of the AlON transparent ceramic is crucial to research of AlON transparent ceramics.
Disclosure of Invention
The invention aims to provide a low-temperature corrosion method of AlON transparent ceramic, which simplifies the operation steps, reduces the corrosion temperature and shortens the corrosion time on the premise of effectively corroding the AlON transparent ceramic.
The invention relates to a low-temperature corrosion method of AlON transparent ceramic, which mainly comprises the following process steps:
1) sintering AlON transparent ceramic: firstly, Al with the particle size of 10nm-500nm is added into the powder 2 O 3 Uniformly mixing the powder, AlN powder and a sintering aid, then loading the mixture into a graphite mold, placing the graphite mold into discharge plasma sintering equipment for high-temperature sintering, raising the temperature rise rate to 1500-plus-1650 ℃ at the temperature rise rate of 100-plus-300 ℃/min, keeping the sintering pressure at 30-70MPa for 1-15min, and cooling the mixture along with a furnace after sintering is finished to obtain the AlON transparent ceramic sample.
2) Grinding and polishing the surface of the AlON transparent ceramic: grinding an AlON transparent ceramic sample prepared by SPS sintering by using a diamond sand table from coarse to fine, wherein the specifications of the diamond sand table are 100 meshes, 500 meshes, 1000 meshes, 1500 meshes, 2000 meshes and 3000 meshes in sequence. The polishing mode is that fingers press the sample to the below of slant evenly hard for sample surface decorative pattern trend unanimous after polishing, later change next specification sand table, polish along the direction that the current decorative pattern of perpendicular to moves, until sample surface decorative pattern is more tiny, and move towards and the direction of the previous round decorative pattern direction is perpendicular, polish according to this method order in proper order, until use 3000 meshes sand table to polish after, sample surface does not have obvious mar.
And then polishing by using polishing flannelette and coating diamond polishing paste, wherein the specifications of the polishing paste are 6000 meshes, 10000 meshes, 13000 meshes, 18000 meshes and 30000 meshes in sequence. The polishing mode is that a sample is placed on a metallographic polishing machine with polishing flannelette, 6000-mesh polishing paste is coated firstly, a finger presses the sample, the sample moves at a constant speed along the circle center of the polishing cloth to the edge direction until polishing patterns on the surface of the sample disappear, then polishing paste of the next specification is coated, the operation is repeated until the sample is polished by 30000-mesh polishing paste, and the surface of the sample is bright.
3) Chemical etching of the AlON transparent ceramic: slowly pouring concentrated phosphoric acid with the mass concentration of 75.00-98.00% and the volume of 5-100ml into a reaction container, placing the container on a multifunctional heater, heating the container to 500 ℃ in a fume hood, then starting heat preservation, clamping an AlON transparent ceramic sample by using tweezers, slowly placing the AlON transparent ceramic sample into a beaker to ensure that the sample is completely immersed in the concentrated phosphoric acid, then starting timing by using a timer, after 1-30min, finishing corrosion, taking out the sample by using the tweezers, placing the sample into the beaker with a large amount of clear water, soaking for 0.1-5min, taking out the sample, washing by using a large amount of flowing clear water, and wiping off surface water by using dust-free paper after washing.
The etched AlON transparent ceramic sample is placed under a microscope to observe a corresponding microstructure, and the result shows that the AlON transparent ceramic etched by the method has obvious crystal grain shape and clear and visible crystal boundary.
The beneficial effects of the invention include:
the method has the advantages of simple operation, safety, low energy consumption and short required time, the AlON transparent ceramic corroded by the method has obvious crystal grains and clear crystal boundaries, can effectively observe the microstructure of the ceramic and the distribution condition of internal pores and defects, is convenient for researchers to judge the performance and sintering condition of the material, and is beneficial to making a next working plan.
Drawings
FIG. 1 is a graph of OM for the samples of example 1;
fig. 2 is a graph of OM for the sample in example 2.
Detailed Description
The invention is further illustrated, but not limited, by the following detailed description of the invention, when read in conjunction with the accompanying drawings.
Example 1
Step 1) AlON transparent ceramic sintering: firstly, Al with the particle size of 50nm is added into the powder 2 O 3 Uniformly mixing the powder, AlN powder and a sintering aid, then loading the mixture into a graphite mold, placing the graphite mold into discharge plasma sintering equipment for high-temperature sintering, raising the temperature to 1650 ℃ at the heating rate of 100 ℃/min, keeping the sintering pressure at 50MPa for 5min, and cooling the sintered product along with a furnace to obtain the AlON transparent ceramic sample.
Step 2), grinding and polishing the surface of the AlON transparent ceramic: grinding an AlON transparent ceramic sample prepared by SPS sintering by using a diamond sand table from coarse to fine, wherein the specifications of the diamond sand table are 100 meshes, 500 meshes, 1000 meshes, 1500 meshes, 2000 meshes and 3000 meshes in sequence. The polishing mode is that fingers press the sample to the below of slant evenly hard for sample surface decorative pattern trend unanimous after polishing, later change next specification sand table, polish along the direction that the current decorative pattern of perpendicular to moves, until sample surface decorative pattern is more tiny, and move towards and the direction of the previous round decorative pattern direction is perpendicular, polish according to this method order in proper order, until use 3000 meshes sand table to polish after, sample surface does not have obvious mar.
And then polishing by using polishing flannelette and coating diamond polishing paste, wherein the specifications of the polishing paste are 6000 meshes, 10000 meshes, 13000 meshes, 18000 meshes and 30000 meshes in sequence. The polishing mode is that a sample is placed on a metallographic polishing machine with polishing flannelette, 6000-mesh polishing paste is coated firstly, a finger presses the sample, the sample moves at a constant speed along the circle center of the polishing cloth to the edge direction until polishing patterns on the surface of the sample disappear, then polishing paste of the next specification is coated, the operation is repeated until the sample is polished by 30000-mesh polishing paste, and the surface of the sample is bright.
Step 3) AlON transparent ceramic chemical corrosion: slowly pouring concentrated phosphoric acid with the mass concentration of 85% and the volume of 20ml into a reaction container, placing the container on a multifunctional heater, heating the container in a fume hood to 300 ℃, then keeping the temperature, clamping an AlON transparent ceramic sample by using tweezers, slowly placing the AlON transparent ceramic sample into a beaker, completely immersing the sample in the concentrated phosphoric acid, then starting timing by using a timer, taking out the sample by using the tweezers after 8min, placing the sample in the beaker filled with a large amount of clear water, immersing for 1min, taking out the sample, washing with a large amount of flowing clear water, and wiping the surface moisture by using dust-free paper after washing.
And 4) placing the corroded AlON transparent ceramic sample under a microscope to observe a corresponding microstructure, and finding that the AlON transparent ceramic corroded by the method has an obvious crystal grain shape and a clear and visible crystal boundary.
The microstructure of the AlON transparent ceramic obtained by etching in this example is shown in fig. 1 when observed under an optical microscope.
Example 2
Step 1) is the same as in example 1.
Step 2) is the same as in example 1.
Step 3) AlON transparent ceramic chemical corrosion: slowly pouring concentrated phosphoric acid with the concentration of 75% and the volume of 100ml into a reaction container, placing the container on a multifunctional heater, heating the container in a fume hood to 350 ℃, then starting heat preservation, clamping an AlON transparent ceramic sample by using tweezers, slowly placing the AlON transparent ceramic sample into a beaker, completely immersing the sample in the concentrated phosphoric acid, then starting timing by using a timer, taking out the sample by using the tweezers after 5min, placing the sample in the beaker filled with a large amount of clear water, immersing for 2min, taking out the sample, washing by using a large amount of flowing clear water, and wiping the surface moisture by using dust-free paper after washing.
4) Same as in example 1.
The microstructure of the AlON transparent ceramic obtained by etching in this example is shown in fig. 2 when observed under an optical microscope.

Claims (6)

1. A low-temperature corrosion method for AlON transparent ceramics is characterized by comprising the following steps:
1) sintering AlON transparent ceramic: firstly, Al is added 2 O 3 Uniformly mixing the powder, AlN powder and a sintering aid, then loading the mixture into a graphite mold, placing the graphite mold into discharge plasma sintering equipment for high-temperature sintering, and cooling the graphite mold along with a furnace after sintering is finished to obtain an AlON transparent ceramic sample;
2) grinding and polishing the surface of the AlON transparent ceramic: grinding an AlON transparent ceramic sample by using a diamond sand disc from thick to thin, and then coating diamond polishing paste on polishing flannelette for polishing until the mirror surface is bright;
3) chemical etching of the AlON transparent ceramic: placing an AlON transparent ceramic sample in a reaction vessel containing concentrated phosphoric acid to start corrosion; after the corrosion is completed, the sample is immersed in clear water and then taken out and washed with a large amount of flowing clear water.
2. The AlON transparent ceramic low-temperature corrosion method according to claim 1, characterized in that Al 2 O 3 The particle size of the AlN powder is 10nm-500 nm; the specific process of the spark plasma sintering comprises the steps of heating rate of 100-300 ℃/min, sintering pressure of 30-70MPa, sintering temperature of 1500-1650 ℃ and heat preservation and pressure maintaining time of 1-15 min.
3. The AlON transparent ceramic low-temperature corrosion method according to claim 1, wherein the diamond sand table is 100 meshes, 500 meshes, 1000 meshes, 1500 meshes, 2000 meshes and 3000 meshes in sequence.
4. The AlON transparent ceramic low-temperature corrosion method according to claim 1, wherein the specifications of the diamond polishing paste are 6000 meshes, 10000 meshes, 13000 meshes, 18000 meshes and 30000 meshes in sequence.
5. The AlON transparent ceramic low-temperature corrosion method according to claim 1, characterized in that the mass concentration of the concentrated phosphoric acid is 75.00% -98.00%, the corrosion heating temperature is 100-500 ℃, the corrosion time is 1-30min, and the soaking time in clear water is 0.1-5 min.
6. The AlON transparent ceramic low-temperature corrosion method according to claim 1, characterized in that the AlON transparent ceramic corroded by the method has obvious crystal grain shape and clearly visible crystal boundary.
CN202210511364.0A 2022-05-11 2022-05-11 Low-temperature corrosion method for AlON transparent ceramic Active CN114804931B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210511364.0A CN114804931B (en) 2022-05-11 2022-05-11 Low-temperature corrosion method for AlON transparent ceramic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210511364.0A CN114804931B (en) 2022-05-11 2022-05-11 Low-temperature corrosion method for AlON transparent ceramic

Publications (2)

Publication Number Publication Date
CN114804931A true CN114804931A (en) 2022-07-29
CN114804931B CN114804931B (en) 2022-12-20

Family

ID=82512772

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210511364.0A Active CN114804931B (en) 2022-05-11 2022-05-11 Low-temperature corrosion method for AlON transparent ceramic

Country Status (1)

Country Link
CN (1) CN114804931B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100252950A1 (en) * 2007-11-26 2010-10-07 Sumitomo Electric Industries, Ltd. Method of producing polycrystalline transparent ceramic substrate and method of producing spinel substrate
CN107344854A (en) * 2016-05-06 2017-11-14 中国科学院上海光学精密机械研究所 A kind of method for preparing aluminum oxynitride crystalline ceramics
CN108794016A (en) * 2018-06-28 2018-11-13 大连海事大学 A kind of fast preparation method of high infrared transmittance AlON crystalline ceramics
CN109721379A (en) * 2019-03-14 2019-05-07 大连海事大学 A method of use AlON powder as raw material connection AlON ceramics
CN110357424A (en) * 2019-06-26 2019-10-22 中国计量大学 A kind of complex phase fluorescent glass and its cryogenic high pressure sintering preparation method
CN112284866A (en) * 2020-10-20 2021-01-29 中国兵器工业第五二研究所烟台分所有限责任公司 Corrosion detection method for grain size of molybdenum powder sintering material
CN113358449A (en) * 2021-05-21 2021-09-07 昆明理工大学 5 xxx-series Al-Mg alloy grain boundary corrosion solution and corrosion method
WO2021248445A1 (en) * 2020-06-12 2021-12-16 苏州君诺新材科技有限公司 Transparent complex-phase fluorescent ceramic and preparation method therefor
CN113880588A (en) * 2021-11-03 2022-01-04 安徽理工大学 Preparation method of uniformly coated AlON powder and transparent ceramic thereof
CN114184628A (en) * 2021-12-21 2022-03-15 成都大学 Method for rapidly preparing bulk ceramic EBSD sample

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100252950A1 (en) * 2007-11-26 2010-10-07 Sumitomo Electric Industries, Ltd. Method of producing polycrystalline transparent ceramic substrate and method of producing spinel substrate
CN107344854A (en) * 2016-05-06 2017-11-14 中国科学院上海光学精密机械研究所 A kind of method for preparing aluminum oxynitride crystalline ceramics
CN108794016A (en) * 2018-06-28 2018-11-13 大连海事大学 A kind of fast preparation method of high infrared transmittance AlON crystalline ceramics
CN109721379A (en) * 2019-03-14 2019-05-07 大连海事大学 A method of use AlON powder as raw material connection AlON ceramics
CN110357424A (en) * 2019-06-26 2019-10-22 中国计量大学 A kind of complex phase fluorescent glass and its cryogenic high pressure sintering preparation method
WO2021248445A1 (en) * 2020-06-12 2021-12-16 苏州君诺新材科技有限公司 Transparent complex-phase fluorescent ceramic and preparation method therefor
CN112284866A (en) * 2020-10-20 2021-01-29 中国兵器工业第五二研究所烟台分所有限责任公司 Corrosion detection method for grain size of molybdenum powder sintering material
CN113358449A (en) * 2021-05-21 2021-09-07 昆明理工大学 5 xxx-series Al-Mg alloy grain boundary corrosion solution and corrosion method
CN113880588A (en) * 2021-11-03 2022-01-04 安徽理工大学 Preparation method of uniformly coated AlON powder and transparent ceramic thereof
CN114184628A (en) * 2021-12-21 2022-03-15 成都大学 Method for rapidly preparing bulk ceramic EBSD sample

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
田庭燕等: "AlON透明陶瓷的制备与性能", 《硅酸盐学报》 *

Also Published As

Publication number Publication date
CN114804931B (en) 2022-12-20

Similar Documents

Publication Publication Date Title
CN114031376B (en) Preparation method of high-hardness fine-grain ZTA system complex phase ceramic material
NL2030121B1 (en) Method for preparing large-size high-quality potassium tantalum niobate ceramic target material
CN109680224B (en) Preparation method of nano porous palladium-based amorphous alloy
CN112250450B (en) Preparation method of heat insulation tile blank capable of resisting high temperature of 2000 DEG C
Miranda-Martinez et al. Grain size effects on the wet erosive wear of high-purity polycrystalline alumina
CN113699424A (en) High-entropy alloy material, surface laser remelting method and gradient high-entropy alloy material
CN114804931B (en) Low-temperature corrosion method for AlON transparent ceramic
CN111041448B (en) Method for preparing diamond coating on surface of cobalt-containing hard alloy and tool and die with diamond coating
CN112110740A (en) Method for preparing aluminum oxide-based composite biological ceramic material through in-situ reaction and product prepared by method
CN113773075B (en) CMAS erosion resistant zirconium-tantalum thermal barrier coating material and preparation method thereof
CN101306942B (en) Fine-crystal high transparency ruby ceramic materials and low-temperature preparation thereof
CN116716041A (en) Composite crystallization film slurry for furnace tube of oil refining heating furnace
CN111751184A (en) Preparation method of metallographic sample of tantalum and tantalum-tungsten alloy
CN103102158B (en) Preparation method of solid-phase sintered silicon carbide ceramics with improved surface quality
CN113880570B (en) Powder sintering method for reducing density of double twin crystal defects in BaTiO3 ceramic
JP2012533502A (en) Method and apparatus for treating diamond using liquid metal saturated with carbon
CN111089774B (en) Surface corrosion treatment method of boron carbide product, metallographic sample and preparation method of metallographic sample
CN114864410A (en) Reaction atmosphere annealing method for eliminating compound semiconductor crystal surface damage layer
CN110483054B (en) Preparation method of large-size complex-shaped artificial gem handicraft
CN108503362B (en) Preparation method of nano graphite-based grinding material
CN116120088B (en) Preparation method of porous alumina ceramic
Dudnik et al. Sintering of ultradisperse powders based on zirconium dioxide
CN109321785A (en) A method of cobalt-based coating is prepared on cobalt-base alloys surface
CN118032473A (en) Metallographic sample preparation and tissue display method of zirconia ceramic material
CN115232997B (en) Method for improving easy oxidation capacity, corrosion resistance and wear resistance of titanium alloy by adding metal zirconium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant