CN101306944A - Green alumina ceramic and method for preparing same - Google Patents
Green alumina ceramic and method for preparing same Download PDFInfo
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- CN101306944A CN101306944A CNA2008101154459A CN200810115445A CN101306944A CN 101306944 A CN101306944 A CN 101306944A CN A2008101154459 A CNA2008101154459 A CN A2008101154459A CN 200810115445 A CN200810115445 A CN 200810115445A CN 101306944 A CN101306944 A CN 101306944A
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- Prior art keywords
- green
- alumina ceramic
- percent
- green alumina
- moulding
- 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.)
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 13
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 238000000498 ball milling Methods 0.000 claims abstract description 7
- 238000004040 coloring Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004615 ingredient Substances 0.000 claims abstract description 6
- 229910000480 nickel oxide Inorganic materials 0.000 claims abstract description 5
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010453 quartz Substances 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000004902 Softening Agent Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 8
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 8
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- -1 polyoxyethylene Polymers 0.000 claims description 6
- 239000008387 emulsifying waxe Substances 0.000 claims description 5
- 229920005575 poly(amic acid) Polymers 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000462 isostatic pressing Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 abstract description 13
- 238000005469 granulation Methods 0.000 abstract description 4
- 230000003179 granulation Effects 0.000 abstract description 4
- 229910052593 corundum Inorganic materials 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000006259 organic additive Substances 0.000 description 4
- 238000007088 Archimedes method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to green alumina ceramics and a method for making the same. The green alumina ceramics is characterized in that: the compositions in percentage by weight of the green alumina ceramics are: 2.5 to 7.0 percent of SiO2, 2.0 to 6.5 percent of CaO, 0.4 to 1.0 percent of MgO, 0.1 to 0.5 percent of NiO and the balance being Al2O3. The making process is as follows: firstly, proportioning is carried out through taking the gross weight of alumina, magnesia, quartz, calcium carbonate and nickel oxide as 100 percent according to the chemical composition of yellow alumina ceramics; secondly, a dispersing agent, agglomerant, a plasticizing agent and water respectively occupying 0.1 to 1.0 percent, 0.5 to 2.0 percent, 0.1 to 1.0 percent and 30 to 50 percent of the weight of the ingredients are added; thirdly, the green alumina ceramics with even coloring and high density can be made after ball milling, slurry, spraying granulation, forming and sintering. The obtained alumina ceramics represents even green and has the characteristics of even coloring and high density.
Description
Technical field
The present invention relates to a kind of green alumina ceramic and preparation method thereof.
Background technology
Alumina-ceramic is a kind of with Al
2O
3Be main raw material, with corundum (α-Al
2O
3) be the stupalith of principal crystalline phase.Because of good comprehensive technical performances such as it have that physical strength height, hardness are big, the high-frequency dielectric loss is little, high-temperature insulation resistance is high, chemical resistance and thermal conductivity are good, and raw material sources are wide, price is relatively cheap, processing and manufacturing technology advantage such as maturation comparatively, alumina-ceramic has been widely used in industries such as electronics, electrical equipment, machinery, chemical industry, weaving, automobile, metallurgy and aerospace, becomes at present the oxide ceramic material of consumption maximum in the world.
What produce both at home and abroad at present mainly is the white alumina pottery, for black and red alumina-ceramic a spot of research is arranged, but does not up to the present also have disclosed report for the research of green alumina ceramic.
Summary of the invention
The object of the present invention is to provide the manufacture method of a kind of uniform coloring, green alumina ceramic that density is high.
The objective of the invention is to be achieved through the following technical solutions.
A kind of green alumina ceramic is characterized in that its weight percent consists of: SiO
2: 2.5%-7.0%; CaO:2.0%-6.5%; MgO:0.4%-1.0%; NiO:0.1%-0.5%, surplus is Al
2O
3
A kind of green alumina ceramic preparation method is characterized in that at first by the Yellow alumina ceramic chemical constitution aluminum oxide, magnesium oxide, and quartz, lime carbonate and nickel oxide are 100% batching by gross weight; The dispersion agent that adds above-mentioned ingredients by weight 0.1%-1.0% again, the binding agent of 0.5%-2.0%, the softening agent of 0.1%-1.0%, the water of 30%-50%; Again behind ball milling, slip, mist projection granulating, moulding, moulding, sintering make uniform coloring, green alumina ceramic that density is high.
A kind of green alumina ceramic preparation method of the present invention, it is characterized in that described dispersion agent be poly amic acid, tetramethyl-aqua ammonia one or both combine.
A kind of green alumina ceramic preparation method of the present invention, it is characterized in that described binding agent be PVAC polyvinylalcohol or emulsifying wax one or both combine.
A kind of green alumina ceramic preparation method of the present invention is characterized in that described softening agent is a polyoxyethylene glycol.
A kind of green alumina ceramic preparation method of the present invention is characterized in that described moulding process is that powder is directly carried out dry-pressing formed or isostatic pressing, and forming pressure is 50-150MPa.
A kind of green alumina ceramic preparation method of the present invention is characterized in that the green compact after the moulding are in 1450-1650 ℃ of insulation 1-4h sintering under air atmosphere.
A kind of green alumina ceramic of the present invention, the additive that adopts magnesium oxide, quartz, lime carbonate and nickel oxide etc. to form, these additives are promotes oxidn aluminium ceramic post sintering significantly, the volatilization of inhibited oxidation nickel under the hot conditions, and can make alumina-ceramic present uniform green, have uniform coloring, characteristics that density is high.
Embodiment
A kind of green alumina ceramic, its basic chemical constitution are (forming in weight percent): Al
2O
3: 85.0-95.0%; SiO
2: 2.5-7.0%; CaO:2.0-6.5%; MgO:0.4-1.0%; NiO:0.1-0.5%; Preparation process is at first calculating and weigh up inorganic material by the basic chemical constitution of the described alumina-ceramic of claim 1: aluminum oxide, magnesium oxide, quartzy, lime carbonate and nickel oxide, amounted to for 100% (weight percent is represented), add corresponding moulding organic additive, comprise dispersion agent 0.1%-1.0%, binding agent 0.5%-2.0%, softening agent 0.1%-1.0%, water 30%-50%, (with the inorganic material is basic calculation, and weight percent is represented) ball milling was made slip in 24 hours, and dispersion agent is a poly amic acid in the above-mentioned prescription, one or both combine the tetramethyl-aqua ammonia, binding agent be polyvinyl alcohol (PVA) or emulsifying wax one or both combine, softening agent is a polyoxyethylene glycol.Slip makes mean particle size less than 100 purpose powders behind mist projection granulating, powder directly carries out dry-pressing formed or isostatic pressing, forming pressure is 50-150MPa, green compact after the moulding in 1450-1650 ℃ of insulation 1-4h sintering, make uniform coloring, green alumina ceramic that density is high under air atmosphere.
Embodiment 1
Alumina-ceramic chemical constitution (forming in weight percent) is: Al
2O
3: 85.0%; SiO
2: 7.0%; CaO:6.5%; MgO:1.0%; NiO:0.5%.Require batching according to above-mentioned chemical constitution, add corresponding moulding organic additive again, it wherein is the dispersion agent poly amic acid of above-mentioned total ingredients by weight 0.1%, 0.5% binding agent polyvinyl alcohol (PVA), 0.1% softening agent polyoxyethylene glycol and the water of 30%-50%, ball milling was made slip in 24 hours, made ceramic green through granulation and dry pressuring forming process, and the dry-pressing formed ceramic green that makes is incubated the 2h sintering in 1450 ℃ under air atmosphere.After burning till, this alumina-ceramic sample presents uniform green, and measuring its mean density with the Archimedes method is 3.58g/cm
3
Embodiment 2
The basic chemical constitution of alumina-ceramic (forming in weight percent) is: Al
2O
3: 90.0%; SiO
2: 4.8%; CaO:4.4%; MgO:0.5%; NiO:0.3%.Require batching according to above-mentioned chemical constitution, add corresponding moulding organic additive again, it wherein is the dispersion agent tetramethyl-aqua ammonia of above-mentioned total ingredients by weight 1.0%, 2.0% binding agent emulsifying wax, 1.0% softening agent polyoxyethylene glycol and the water of 30%-50%, ball milling was made slip in 24 hours, made ceramic green through granulation and dry pressuring forming process, ceramic green under air atmosphere in 1500 ℃ of heat preservation sintering 2h.After burning till, this alumina-ceramic sample presents uniform green, and measuring its mean density with the Archimedes method is 3.63g/cm
3
Embodiment 3
The basic chemical constitution of alumina-ceramic (forming in weight percent) is: Al
2O
3: 95.0%; SiO
2: 2.5%; CaO:2.0%; MgO:0.4%; NiO:0.1%.Require batching according to above-mentioned chemical constitution, add corresponding moulding organic additive again, wherein be the dispersion agent poly amic acid of above-mentioned total ingredients by weight 0.8%, the combination of tetramethyl-aqua ammonia, 1.0% binding agent polyvinyl alcohol (PVA) and the combination of the kind of emulsifying wax, 0.8% softening agent polyoxyethylene glycol and 40% water, ball milling was made slip in 24 hours, made ceramic green through granulation and dry pressuring forming process, ceramic green under air atmosphere in 1650 ℃ of heat preservation sintering 2h.After burning till, this alumina-ceramic sample presents uniform green, and measuring its mean density with the Archimedes method is 3.72g/cm
3
Claims (6)
1. a green alumina ceramic is characterized in that its weight percent consists of: SiO
2: 2.5%-7.0%; CaO:2.0%-6.5%; MgO:0.4%-1.0%; NiO:0.1%-0.5%, surplus is Al
2O
3X.
2. green alumina ceramic preparation method is characterized in that at first by the Yellow alumina ceramic chemical constitution aluminum oxide, magnesium oxide, and quartz, lime carbonate and nickel oxide are 100% batching by gross weight; The dispersion agent that adds above-mentioned ingredients by weight 0.1%-1.0% again, the binding agent of 0.5%-2.0%, the softening agent of 0.1%-1.0%, the water of 30%-50%; Again behind ball milling, slip, mist projection granulating, moulding, moulding, sintering make uniform coloring, green alumina ceramic that density is high.
3. a kind of green alumina ceramic preparation method according to claim 1, it is characterized in that described dispersion agent be poly amic acid, tetramethyl-aqua ammonia one or both combine.
A kind of green alumina ceramic preparation method according to claim 1,, it is characterized in that described binding agent be PVAC polyvinylalcohol or emulsifying wax one or both combine.
4. a kind of green alumina ceramic preparation method according to claim 1 is characterized in that described softening agent is a polyoxyethylene glycol.
5. a kind of green alumina ceramic preparation method according to claim 1 is characterized in that described moulding process is that powder is directly carried out dry-pressing formed or isostatic pressing, and forming pressure is 50-150MPa.
6. a kind of green alumina ceramic preparation method according to claim 1 is characterized in that the green compact after the moulding are in 1450-1650 ℃ of insulation 1-4h sintering under air atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101154459A CN101306944A (en) | 2008-06-24 | 2008-06-24 | Green alumina ceramic and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101154459A CN101306944A (en) | 2008-06-24 | 2008-06-24 | Green alumina ceramic and method for preparing same |
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| Publication Number | Publication Date |
|---|---|
| CN101306944A true CN101306944A (en) | 2008-11-19 |
Family
ID=40123655
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101154459A Pending CN101306944A (en) | 2008-06-24 | 2008-06-24 | Green alumina ceramic and method for preparing same |
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|---|---|
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491736A (en) * | 2011-11-24 | 2012-06-13 | 中国铝业股份有限公司 | Manufacturing method of peraluminous ceramic rings for valves |
| CN102674849A (en) * | 2012-06-06 | 2012-09-19 | 宁波泰格尔陶瓷有限公司 | Aluminum oxide ceramic additive |
| CN103558159A (en) * | 2013-10-18 | 2014-02-05 | 北京赛乐米克材料科技有限公司 | Method for detecting structural ceramic product |
| CN105097423A (en) * | 2014-05-12 | 2015-11-25 | 中芯国际集成电路制造(上海)有限公司 | Plasma reactor and method of eliminating particle pollution in plasma reaction cavity |
| CN105174921A (en) * | 2015-09-15 | 2015-12-23 | 苏州亿馨源光电科技有限公司 | Heat-resisting conductive ceramic material and preparation method thereof |
| CN105645932A (en) * | 2015-12-30 | 2016-06-08 | 佛山市业丰赛尔陶瓷科技有限公司 | α-Al2O3Transparent ceramic and preparation method thereof |
| CN106623900A (en) * | 2016-12-19 | 2017-05-10 | 吴硕 | Aluminum oxide ceramic and preparation method thereof |
| CN106938919A (en) * | 2017-03-23 | 2017-07-11 | 厦门澳汤维尔生物科技有限公司 | A kind of coral amputation breeding pedestal formula and preparation technology |
| CN110078526A (en) * | 2019-06-03 | 2019-08-02 | 株洲湘火炬火花塞有限责任公司 | A kind of spark plug insulator ceramics and preparation method thereof and compound binding agent |
| CN110076882A (en) * | 2019-04-30 | 2019-08-02 | 董海明 | A kind of isostatic cool pressing composable mold and production method producing small micro- Ceramic Balls green body |
| CN110885235A (en) * | 2019-11-26 | 2020-03-17 | 深圳市岑科实业有限公司 | Ceramic core material applied to high-frequency inductor framework and preparation method thereof |
| CN113979732A (en) * | 2021-11-12 | 2022-01-28 | 深圳市中美欧光电科技有限公司 | High-reflectivity ceramic substrate, preparation method thereof and COB |
| CN114262212A (en) * | 2021-12-27 | 2022-04-01 | 广东泛瑞新材料有限公司 | Black alumina ceramic particle material and preparation method and application thereof |
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2008
- 2008-06-24 CN CNA2008101154459A patent/CN101306944A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491736B (en) * | 2011-11-24 | 2013-03-20 | 中国铝业股份有限公司 | A kind of preparation method of high alumina ceramic ring for valve |
| CN102491736A (en) * | 2011-11-24 | 2012-06-13 | 中国铝业股份有限公司 | Manufacturing method of peraluminous ceramic rings for valves |
| CN102674849A (en) * | 2012-06-06 | 2012-09-19 | 宁波泰格尔陶瓷有限公司 | Aluminum oxide ceramic additive |
| CN103558159A (en) * | 2013-10-18 | 2014-02-05 | 北京赛乐米克材料科技有限公司 | Method for detecting structural ceramic product |
| CN103558159B (en) * | 2013-10-18 | 2015-12-02 | 北京赛乐米克材料科技有限公司 | A kind of detection method of structural ceramic product |
| CN105097423B (en) * | 2014-05-12 | 2018-09-18 | 中芯国际集成电路制造(上海)有限公司 | Plasma reactor and the method for removing plasma reaction chamber particle contamination |
| CN105097423A (en) * | 2014-05-12 | 2015-11-25 | 中芯国际集成电路制造(上海)有限公司 | Plasma reactor and method of eliminating particle pollution in plasma reaction cavity |
| CN105174921A (en) * | 2015-09-15 | 2015-12-23 | 苏州亿馨源光电科技有限公司 | Heat-resisting conductive ceramic material and preparation method thereof |
| CN105645932A (en) * | 2015-12-30 | 2016-06-08 | 佛山市业丰赛尔陶瓷科技有限公司 | α-Al2O3Transparent ceramic and preparation method thereof |
| CN106623900A (en) * | 2016-12-19 | 2017-05-10 | 吴硕 | Aluminum oxide ceramic and preparation method thereof |
| CN106938919A (en) * | 2017-03-23 | 2017-07-11 | 厦门澳汤维尔生物科技有限公司 | A kind of coral amputation breeding pedestal formula and preparation technology |
| CN110076882A (en) * | 2019-04-30 | 2019-08-02 | 董海明 | A kind of isostatic cool pressing composable mold and production method producing small micro- Ceramic Balls green body |
| CN110078526A (en) * | 2019-06-03 | 2019-08-02 | 株洲湘火炬火花塞有限责任公司 | A kind of spark plug insulator ceramics and preparation method thereof and compound binding agent |
| CN110885235A (en) * | 2019-11-26 | 2020-03-17 | 深圳市岑科实业有限公司 | Ceramic core material applied to high-frequency inductor framework and preparation method thereof |
| CN113979732A (en) * | 2021-11-12 | 2022-01-28 | 深圳市中美欧光电科技有限公司 | High-reflectivity ceramic substrate, preparation method thereof and COB |
| CN114262212A (en) * | 2021-12-27 | 2022-04-01 | 广东泛瑞新材料有限公司 | Black alumina ceramic particle material and preparation method and application thereof |
| CN114262212B (en) * | 2021-12-27 | 2022-10-28 | 广东泛瑞新材料有限公司 | Black alumina ceramic particle material and preparation method and application thereof |
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Open date: 20081119 |