CN101058503A - In-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technique thereof - Google Patents
In-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technique thereof Download PDFInfo
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- CN101058503A CN101058503A CN 200610043811 CN200610043811A CN101058503A CN 101058503 A CN101058503 A CN 101058503A CN 200610043811 CN200610043811 CN 200610043811 CN 200610043811 A CN200610043811 A CN 200610043811A CN 101058503 A CN101058503 A CN 101058503A
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- titanium carbide
- crystal whisker
- carbide crystal
- cutting tool
- aluminum oxide
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Abstract
The invention discloses a multiple phase ceramic powder and making method, which comprises the following parts: 28. 7%-46. 2% TiO2, 12. 9%-20. 8% C, 1. 1%-1. 7% Ni, 7. 0%-33. 0% NaCl and residual Al2O3. The making technique comprises the following steps: adding anhydrous alcohol into composite predecessor powder to generate titanium carbide whisker; blending in the cylinder-typed balling machine through stainless steel ball for 24h; placing the mixed material into vacuum drier to dry; sieving the dried material through 100-order; blending the material and composite alpha-Al2O3 particle according to proportion; loading into graphite container; insulating in the argon as protective gas under 1300-1600 deg. c for 90-180min to synthesize the product.
Description
(1) technical field
The present invention relates to complex phase ceramic powder and preparation technology thereof, especially a kind ofly be used to prepare high-performance in-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technology thereof.
(2) background technology
Structural ceramic material has high rigidity, high-wearing feature, high chemical stability and advantage such as high temperature resistant, but stupalith institute inherent fragility has limited its application.The whisker that an amount of interpolation has the higher elasticity modulus can improve the fracture toughness property and the bending strength of stupalith greatly.Traditional technology prepares crystal whisker toughened ceramic cutting tool material powder and generally adopts outside mode of adding an amount of whisker and mechanically mixing.Traditional preparation process technology exists complex process, whisker easily to reunite, whisker costs an arm and a leg, contaminate environment and shortcoming such as be detrimental to health.This preparation technology can guarantee that whisker is evenly distributed in the matrix powder with the precursor powder in growth, therefore can overcome the shortcoming of traditional preparation process technology.
(3) summary of the invention
The objective of the invention is to provide a kind of complex phase ceramic powder and preparation technology thereof of high-quality, low price for the growth in situ crystal whisker toughened aluminum oxide base ceramics cutting tool material of preparation good mechanical performance, add crystal whisker toughened ceramic cutting tool material powder and preparation technology thereof in order to substitute conventional external, thereby simplify technology, improve quality, reduce cost and reduce environmental pollution etc.
Basic design of the present invention is with α-Al
2O
3Particle is a matrix, adding can original position generates the precursor composite powder of whisker, under suitable growth temperature and soaking time, synthetic alumina base complex phase ceramic powder with certain titanium carbide crystal whisker volume content is as the raw material of the crystal whisker toughened ceramic cutting tool material of preparation high-performance then.
The in-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder is by the precursor powder and the α-Al that can generate titanium carbide crystal whisker
2O
3Form, material composition is (weight ratio %): TiO
228.7%-46.2%; C 12.9%-20.8%; Ni1.1%-1.7%; NaCl 7.0%-33.0%; Al
2O
3Surplus.
The preparation technology of in-situ growth titanium carbide crystal whisker toughened aluminum oxide base stupalith complex phase powder is: the precursor composite powder that can generate titanium carbide crystal whisker that will prepare in proportion adds dehydrated alcohol and mixed 24 hours with Stainless Steel Ball in iar mill, it is dry behind the mixing this compound to be put into vacuum drying oven, dry back is with the screening of 100 mesh sieves, again with α-Al
2O
3After particle mixed in proportion, in the crystal vessel of packing into, under the temperature condition of argon gas atmosphere protection and 1300 ℃-1600 ℃, insulation 90min-180min synthesized.
The weight content of titanium carbide after the generation (mainly being formed and mixed small quantities of particles by whisker) in alumina base complex phase ceramic powder is: 30%-80%.
The present invention is novel, by the titanium carbide crystal whisker of directly in alumina substrate, growing and having plateau modulus, can increase substantially aluminum oxide base ceramics cutting tool material fracture toughness property and bending strength, make the whisker can be, thereby simplify technology, improve quality, reduce cost and alleviate environmental pollution etc. with the uniform distribution of precursor powder in matrix powder.
(4) embodiment:
Press the precursor composite powder of composition preparation listed in the embodiment subordinate list, adding dehydrated alcohol mixed 24 hours with Stainless Steel Ball in iar mill, behind the mixing this compound is put into the vacuum drying oven drying, dry back is with the screening of 100 mesh sieves, again with α-Al
2O
3After particle mixes in proportion; pack in the crystal vessel; cover and be drilled with aperture; uniform distribution, aperture 2-5mm, the total area account for the long-pending 5%-50% of capping; under the argon gas atmosphere protection; be warming up to temperature listed in the embodiment subordinate list, behind the insulation 90min, can obtain the Al of predetermined titanium carbide volume content
2O
3The base complex phase ceramic powder, wherein small quantities of particles is mainly formed and mixed to titanium carbide by whisker.
The embodiment subordinate list
| The embodiment numbering | The precursor powder constituent (weight ratio, %) | Heating temperature (℃) | Soaking time (min) | The synthetic powder composition (weight ratio, %) | |||||
| TiO 2 | C | Ni | Na Cl | Al 2O 3 | Al 2O 3 | TiC * | |||
| 1 | 30.7 | 13. 8 | 1.1 | 11. 2 | 43.2 | 138 0 | 90 | 65.2 | 34.8 |
| 2 | 30.7 | 13. 8 | 1.1 | 11. 2 | 43.2 | 148 0 | 90 | 65.2 | 34.8 |
| 3 | 30.7 | 13. 8 | 1.1 | 11. 2 | 43.2 | 158 0 | 90 | 65.2 | 34.8 |
| 4 | 36.3 | 16. 4 | 1.3 | 32. 8 | 13.3 | 148 0 | 90 | 50.7 | 49.3 |
| 5 | 42.6 | 19. 2 | 1.6 | 21. 0 | 15.6 | 148 0 | 90 | 40.0 | 60.0 |
*Annotate: the TiC in the synthetic powder mainly is made up of whisker, and mixes small quantities of particles.
Claims (2)
1, in-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder is by the precursor powder and the α-Al that can generate titanium carbide crystal whisker
2O
3Form, it is characterized by material composition is (weight ratio %): TiO
228.7%-46.2%; C 12.9%-20.8%; Ni 1.1%-1.7%; NaCl 7.0%-33.0%; Al
2O
3Surplus.
2, the preparation technology of the described in-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder of preparation claim 1, it is characterized by the precursor composite powder that can generate titanium carbide crystal whisker that will prepare in proportion adds dehydrated alcohol and mixed 24 hours with Stainless Steel Ball in iar mill, it is dry behind the mixing this compound to be put into vacuum drying oven, dry back is with the screening of 100 mesh sieves, again with α-Al
2O
3After particle mixed in proportion, in the crystal vessel of packing into, under the temperature condition of argon gas atmosphere protection and 1300 ℃-1600 ℃, insulation 90min-180min synthesized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100438115A CN100417618C (en) | 2006-04-17 | 2006-04-17 | In-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100438115A CN100417618C (en) | 2006-04-17 | 2006-04-17 | In-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101058503A true CN101058503A (en) | 2007-10-24 |
| CN100417618C CN100417618C (en) | 2008-09-10 |
Family
ID=38864828
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100438115A Active CN100417618C (en) | 2006-04-17 | 2006-04-17 | In-situ growth titanium carbide crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technique thereof |
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| CN (1) | CN100417618C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491775A (en) * | 2011-12-06 | 2012-06-13 | 山东大学 | In-situ growth tantalum carbide whisker toughened alumina-based ceramic cutting tool material and preparation process thereof |
| CN109576774A (en) * | 2019-01-10 | 2019-04-05 | 江西制造职业技术学院 | A kind of novel manufacturing technique method for preparing tic whisker |
| CN115074090A (en) * | 2022-07-25 | 2022-09-20 | 深圳市中黄实业有限公司 | High-temperature composite phase-change heat storage material and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991008992A1 (en) * | 1989-12-13 | 1991-06-27 | The Dow Chemical Company | Silicon carbide whisker reinforced ceramic composites and method for making the same |
| CN1026179C (en) * | 1990-12-29 | 1994-10-12 | 清华大学 | Silicon nitride compound phase ceramic knife tool material with whiskers for supplementing toughness and strength |
| CN1053173C (en) * | 1995-10-26 | 2000-06-07 | 山东工业大学 | Complex-phase ceramic cutting-tool material and processing technology thereof |
| CN1317224C (en) * | 2004-05-11 | 2007-05-23 | 山东轻工业学院 | Alumina multiphase composite ceramic materials and preparation method thereof |
-
2006
- 2006-04-17 CN CNB2006100438115A patent/CN100417618C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491775A (en) * | 2011-12-06 | 2012-06-13 | 山东大学 | In-situ growth tantalum carbide whisker toughened alumina-based ceramic cutting tool material and preparation process thereof |
| CN102491775B (en) * | 2011-12-06 | 2013-07-03 | 山东大学 | In-situ growth tantalum carbide whisker toughened alumina-based ceramic cutting tool material and preparation process thereof |
| CN109576774A (en) * | 2019-01-10 | 2019-04-05 | 江西制造职业技术学院 | A kind of novel manufacturing technique method for preparing tic whisker |
| CN115074090A (en) * | 2022-07-25 | 2022-09-20 | 深圳市中黄实业有限公司 | High-temperature composite phase-change heat storage material and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100417618C (en) | 2008-09-10 |
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