CN108546098A - A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof - Google Patents

A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof Download PDF

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CN108546098A
CN108546098A CN201810751310.5A CN201810751310A CN108546098A CN 108546098 A CN108546098 A CN 108546098A CN 201810751310 A CN201810751310 A CN 201810751310A CN 108546098 A CN108546098 A CN 108546098A
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base complex
aluminum oxide
complex phase
raw material
situ carbon
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付绿平
顾华志
黄奥
张美杰
倪红卫
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Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
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Wuhan University of Science and Engineering WUSE
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Abstract

The present invention relates to a kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramics and preparation method thereof.Its technical solution is：Using the carbonaceous material of the high titanium bauxite raw material micro mist of 92~99wt% and 1~8wt% as raw material, first the raw material is uniformly mixed in planetary ball mill, mechanical pressing under the conditions of 100~150MPa obtains green compact；It is again that the green compact are 12~36 hours dry under the conditions of 110~200 DEG C, 1~8 hour is kept the temperature to get in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic under the conditions of nitrogen atmosphere and 1550~1750 DEG C.The present invention is at low cost and simple for process, and prepared in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic has the characteristics that intensity is high, hardness is high, toughness is high and bulk density is relatively low.

Description

A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof
Technical field
The invention belongs to alumina base complex phase ceramic technical fields.It is aoxidized more particularly to a kind of in-situ carbon TiN phase toughening Aluminium base complex phase ceramic and preparation method thereof.
Background technology
Aluminium oxide ceramics is one of the ceramic material that the mankind use earliest, since aluminium oxide ceramics has wear-resistant, corrosion resistant Erosion, high temperature high voltage resistant, hardness is big, production cost is low and the advantages such as abundant raw material, and application range is each throughout national economy Field.However, the defect of alumina ceramic material poor toughness hinders its further expanded application.
Numerous studies are carried out for the toughening of aluminium oxide ceramics both at home and abroad.Xu L H etc. introduce the hydrogen-oxygen through low temperature calcination Change aluminium as crystal seed, and by regulation and control preparation process (Xu L H, Xie Z P, Gao L C, et al.Synthesis, evaluation and characterization of alumina ceramics with elongated grains[J] .Ceramics International,2005,31(7):953-958), the self-toughening alumina with plate-like grain is made to make pottery Porcelain, fracture toughness are 7.1MPa m1/2.Trusty P A etc. introduce Fe (Trusty P A, the Yeomans J of 20vol% A.The toughening of alumina with iron:Effects of iron distribution on fracture toughness[J].Journal of the European Ceramic Society,1997,17(4):495- 504) Al, is made2O3Base complex phase ceramic, fracture toughness reach 10.9MPa m respectively1/2, however its density is higher.Than W H etc. By controlling ZrO2The degree of stability of particle introduces the ZrO that 10vol% meso-position radius is 0.3 μm2Particle (Than W H, Chen R Z,Wang T C,et al.Mechanical properties of Al2O3/ZrO2composites[J].Journal of the European Ceramic Society,2002,22(16):2827-2833.), fracture toughness has been prepared and has reached 11.8MPa m1/2Complex phase ceramic, however its density is higher.Garnier V etc. introduce the SiC whiskers (Garnier of 35vol% V,Fantozzi G,Nguyen D,et al.Influence of SiC whisker morphology and nature of SiC/Al2O3interface on thermomechanical properties of SiC reinforced Al2O3composites[J].Journal of the European Ceramic Society,2005,25(15):3485- 3493), by Al2O3Ceramic fracture toughness is by 5.4MPa m1/2It is promoted to 7.9MPa m1/2。
In conclusion though Al can be improved by controlling material microstructure and introducing the measures such as the second reinforced phase2O3Ceramics Toughness, but method for toughening is limited to the promotion degree of aluminium oxide ceramics fracture toughness at present, and Part Methods can also cause material Expect that density increases, intensity and hardness reduce, to Al2O3Other performances of ceramics have an adverse effect.
Invention content
The present invention is directed to overcome prior art defect, it is therefore an objective to provide in-situ carbon nitridation a kind of at low cost and simple for process The preparation method of titanium phase toughened aluminum oxide base complex phase ceramic；The in-situ carbon TiN phase toughened aluminum oxide base prepared with this method is multiple Phase ceramics intensity is high, hardness is high, toughness is high and bulk density is relatively low.
For the above-mentioned task of realization, the technical solution adopted in the present invention is：With the high titanium bauxite raw material of 92~99wt% The carbonaceous material of micro mist and 1~8wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, 100~ Mechanical pressing under the conditions of 150MPa, obtains green compact；It is again that the green compact are 12~36 hours dry under the conditions of 110~200 DEG C, 1~8 hour is kept the temperature under the conditions of nitrogen atmosphere and 1550~1750 DEG C to make pottery to get in-situ carbon TiN phase toughened aluminum oxide base complex phase Porcelain.
The Al of the high titanium bauxite raw material micro mist2O3Content>80wt%, TiO2Content>2wt%；High titanium bauxite raw material The grain size D of micro mist50It is 1~8 μm.
The carbonaceous material is one or more of carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch；It is carbon containing The grain size D of material50It is 0.1~5 μm.
Due to the adoption of the above technical scheme, the present invention has following good effect compared with prior art：
(1) present invention prepares Al directly using high titanium bauxite raw material as raw material2O3Base complex phase ceramic, production cost compared with and work Skill is simple.
(2) present invention utilizes the TiO in high titanium bauxite raw material2Component is formed in situ by CRN method TiCN phases, since TiCN phases have excellent mechanical property, on the one hand, time interface, the effect of pinning dislocation can be formed in material It can hinder crack propagation；On the other hand, due to the difference of TiCN phases and matrix coefficient of thermal expansion, remnants will be formed in material internal Thermal stress so that bridging and deflection occur for crackle, and extensions path extends.Therefore, it is possible to promote in-situ carbon TiN phase toughening oxygen Change the mechanical property of aluminium base complex phase ceramic and realizes lightweight.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present invention is after testing：Fracture toughness be 5~ 9MPa m1/2；Compressive resistance is 2400~2800MPa；Vickers hardness is 9~14GPa；Bulk density is 3.2~3.5g/cm3。
Therefore, the present invention is at low cost and simple for process, prepared in-situ carbon TiN phase toughened aluminum oxide base complex phase pottery Porcelain has the characteristics that intensity is high, hardness is high, toughness is high and bulk density is relatively low.
Specific implementation mode
The invention will be further described With reference to embodiment, not limiting of its scope.
It is first that the raw material Unify legislation involved by present embodiment is as follows to avoid repeating, it is no longer superfluous in embodiment It states：
The Al of the high titanium bauxite raw material micro mist2O3Content>80wt%, TiO2Content>2wt%；High titanium bauxite raw material The grain size D of micro mist50It is 1~8 μm.
The grain size D of the carbonaceous material50It is 0.1~5 μm.
Embodiment 1
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 95~99wt% The carbonaceous material of bauxite raw material micro mist and 1~5wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, Mechanical pressing under the conditions of 100~130MPa, obtains green compact；Again by the green compact dry 12~24 under the conditions of 150~200 DEG C Hour, 4~8 hours are kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1550~1650 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 5 ~7MPa m1/2；Compressive resistance is 2400~2600MPa；Vickers hardness is 9~11GPa；Bulk density is 3.2~3.3g/ cm3。
Embodiment 2
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 1：
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 5.5~7MPa m1/2；Compressive resistance is 2450~2600MPa；Vickers hardness is 9~10GPa；Bulk density is 3.2~3.3g/ cm3。
Embodiment 3
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 95~99wt% The carbonaceous material of bauxite raw material micro mist and 1~5wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, Mechanical pressing under the conditions of 100~130MPa, obtains green compact；Again by the green compact dry 24~36 under the conditions of 110~160 DEG C Hour, 1~5 hour is kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1650~1750 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness be 5.5~ 7MPa m1/2；Compressive resistance is 2450~2600MPa；Vickers hardness is 10~12GPa；Bulk density is 3.25~3.35g/ cm3。
Embodiment 4
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 3：
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 6 ~7MPa m1/2；Compressive resistance is 2500~2600MPa；Vickers hardness is 10~11GPa；Bulk density is 3.3~3.35g/ cm3。
Embodiment 5
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 95~99wt% The carbonaceous material of bauxite raw material micro mist and 1~5wt% are raw material；First the raw material is uniformly mixed in planetary ball mill, Mechanical pressing under the conditions of 120~150MPa obtains green compact, then by the green compact dry 12~24 under the conditions of 150~200 DEG C Hour, 4~8 hours are kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1550~1650 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 6 ~8MPa m1/2；Compressive resistance is 2500~2700MPa；Vickers hardness is 9~12GPa；Bulk density is 3.2~3.3g/ cm3。
Embodiment 6
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 5：
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 6.5~7.5MPa m1/2；Compressive resistance is 2550~2650MPa；Vickers hardness is 10.5~12GPa；Bulk density is 3.25 ~3.3g/cm3。
Embodiment 7
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 95~99wt% The carbonaceous material of bauxite raw material micro mist and 1~5wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, Mechanical pressing under the conditions of 120~150MPa, obtains green compact；Again by the green compact dry 24~36 under the conditions of 110~160 DEG C Hour, 1~5 hour is kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1650~1750 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is the mixture of carbon black, expanded graphite and starch.
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 6 ~7.5MPa m1/2；Compressive resistance is 2500~2650MPa；Vickers hardness is 10~13GPa；Bulk density is 3.3~3.4g/ cm3。
Embodiment 8
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 7：
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 7 ~8MPa m1/2；Compressive resistance is 2600~2700MPa；Vickers hardness is 10.5~12GPa；Bulk density is 3.3~3.4g/ cm3。
Embodiment 9
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 92~96wt% The carbonaceous material of bauxite raw material micro mist and 4~8wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, Mechanical pressing under the conditions of 100~130MPa, obtains green compact；Again by the green compact dry 12~24 under the conditions of 150~200 DEG C Hour, 4~8 hours are kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1550~1650 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 7.5~9MPa m1/2；Compressive resistance is 2600~2700MPa；Vickers hardness is 11~13GPa；Bulk density be 3.35~ 3.45g/cm3。
Embodiment 10
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 9：
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 7.5~8.5MPa m1/2；Compressive resistance is 2600~2700MPa；Vickers hardness is 11~13GPa；Bulk density be 3.35~ 3.45g/cm3。
Embodiment 11
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 92~96wt% The carbonaceous material of bauxite raw material micro mist and 4~8wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, Mechanical pressing under the conditions of 100~130MPa, obtains green compact；Again by the green compact dry 24~36 under the conditions of 110~160 DEG C Hour, 1~5 hour is kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1650~1750 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 7 ~9MPa m1/2；Compressive resistance is 2650~2800MPa；Vickers hardness is 11~13GPa；Bulk density is 3.3~3.4g/ cm3。
Embodiment 12
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 11：
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 7.5~9MPa m1/2；Compressive resistance is 2650~2750MPa；Vickers hardness is 12~13.5GPa；Bulk density be 3.35~ 3.45g/cm3。
Embodiment 13
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 92~96wt% The carbonaceous material of bauxite raw material micro mist and 4~8wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, Mechanical pressing under the conditions of 120~150MPa, obtains green compact；Again by the green compact dry 12~24 under the conditions of 150~200 DEG C Hour, 4~8 hours are kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1550~1650 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 8 ~9MPa m1/2；Compressive resistance is 2650~2800MPa；Vickers hardness is 12~14GPa；Bulk density is 3.3~3.45g/ cm3。
Embodiment 14
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 13：
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 8 ~9MPa m1/2；Compressive resistance is 2700~2800MPa；Vickers hardness is 13~14GPa；Bulk density is 3.4~3.5g/ cm3。
Embodiment 15
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.With the high titanium of 92~96wt% The carbonaceous material of bauxite raw material micro mist and 4~8wt% are raw material, are first uniformly mixed the raw material in planetary ball mill, Mechanical pressing under the conditions of 120~150MPa, obtains green compact；Again by the green compact dry 24~36 under the conditions of 110~160 DEG C Hour, 1~5 hour is kept the temperature to get in_situ TiC N phase toughenings Al under the conditions of nitrogen atmosphere and 1650~1750 DEG C2O3Base complex phase Ceramics.
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 8 ~9MPa m1/2；Compressive resistance is 2700~2800MPa；Vickers hardness is 13~14GPa；Bulk density is 3.35~3.5g/ cm3。
Embodiment 16
A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof.In addition to carbonaceous material, remaining With embodiment 15：
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch Close object.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the present embodiment is after testing：Fracture toughness is 8 ~9MPa m1/2；Compressive resistance is 2750~2800MPa；Vickers hardness is 12.5~14GPa；Bulk density is 3.4~3.5g/ cm3。
Present embodiment has following good effect compared with prior art：
(1) present embodiment prepares Al directly using high titanium bauxite raw material as raw material2O3Base complex phase ceramic is produced into This compared with it is simple for process.
(2) present embodiment utilizes the TiO in high titanium bauxite raw material2Component passes through CRN method original Position forms TiCN phases, since TiCN phases have excellent mechanical property, on the one hand, can form time interface, pinning position in material Mistake effect can hinder crack propagation；It on the other hand, will be in material internal shape due to the difference of TiCN phases and matrix coefficient of thermal expansion At residual thermal stress so that bridging and deflection occur for crackle, and extensions path extends.Therefore, it is possible to promote in-situ carbon TiN phase The mechanical property of toughened aluminum oxide base complex phase ceramic simultaneously realizes lightweight.
In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by present embodiment is after testing：It is broken tough Property be 5~9MPa m1/2；Compressive resistance is 2400~2800MPa；Vickers hardness is 9~14GPa；Bulk density be 3.2~ 3.5g/cm3。
Therefore, present embodiment is at low cost and simple for process, prepared in-situ carbon TiN phase toughened aluminum oxide Base complex phase ceramic has the characteristics that intensity is high, hardness is high, toughness is high and bulk density is relatively low.

Claims (4)

1. a kind of preparation method of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic, it is characterised in that with 92~99wt% High titanium bauxite raw material micro mist and 1~8wt% carbonaceous material be raw material, first the raw material is mixed in planetary ball mill Uniformly, mechanical pressing under the conditions of 100~150MPa, obtains green compact；It is again that the green compact are dry under the conditions of 110~200 DEG C 12~36 hours, 1~8 hour was kept the temperature to get in-situ carbon TiN phase toughening under the conditions of nitrogen atmosphere and 1550~1750 DEG C Alumina base complex phase ceramic.
2. the preparation method of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic according to claim 1, feature It is the Al of the high titanium bauxite raw material micro mist2O3Content>80wt%, TiO2Content>2wt%；High titanium bauxite raw material micro mist Grain size D50It is 1~8 μm.
3. the preparation method of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic according to claim 1, feature It is that the carbonaceous material is one or more of carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch；Carbonaceous material Grain size D50It is 0.1~5 μm.
4. a kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic, it is characterised in that the in-situ carbon TiN phase increases Tough alumina base complex phase ceramic is the in-situ carbon TiN phase toughening oxidation according to any one of claims 1~3 In-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic prepared by the preparation method of aluminium base complex phase ceramic.
CN201810751310.5A 2018-07-10 2018-07-10 A kind of in-situ carbon TiN phase toughened aluminum oxide base complex phase ceramic and preparation method thereof Pending CN108546098A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875363A (en) * 2020-07-16 2020-11-03 北京科技大学 Preparation method of electrofused mullite containing titanium carbonitride solid solution

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017524A (en) * 1989-02-13 1991-05-21 Iscar Ltd. Ceramic cutting tool
CN101054290A (en) * 2006-04-14 2007-10-17 山东大学 In-situ growth titanium carbonitride crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technique thereof
CN101723670A (en) * 2009-12-03 2010-06-09 陕西科技大学 Ti(CxN1-x)/Al2O3 composite material and preparation method thereof
CN102584309A (en) * 2012-02-15 2012-07-18 山东大学 Titanium carbonitride series whisker toughed alumina-based ceramic cutter material powder synthesized by using carbothermal method and preparation technology thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017524A (en) * 1989-02-13 1991-05-21 Iscar Ltd. Ceramic cutting tool
CN101054290A (en) * 2006-04-14 2007-10-17 山东大学 In-situ growth titanium carbonitride crystal whisker toughened aluminum oxide base ceramics cutting tool material powder and preparation technique thereof
CN101723670A (en) * 2009-12-03 2010-06-09 陕西科技大学 Ti(CxN1-x)/Al2O3 composite material and preparation method thereof
CN102584309A (en) * 2012-02-15 2012-07-18 山东大学 Titanium carbonitride series whisker toughed alumina-based ceramic cutter material powder synthesized by using carbothermal method and preparation technology thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875363A (en) * 2020-07-16 2020-11-03 北京科技大学 Preparation method of electrofused mullite containing titanium carbonitride solid solution

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