CN103540782A - Preparation technology of titanium, aluminum, titanium nitride and zirconium dioxide metal ceramic material - Google Patents
Preparation technology of titanium, aluminum, titanium nitride and zirconium dioxide metal ceramic material Download PDFInfo
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- CN103540782A CN103540782A CN201310455261.8A CN201310455261A CN103540782A CN 103540782 A CN103540782 A CN 103540782A CN 201310455261 A CN201310455261 A CN 201310455261A CN 103540782 A CN103540782 A CN 103540782A
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Abstract
The invention discloses a preparation technology of a titanium, aluminum, titanium nitride and zirconium dioxide metal ceramic material, belonging to the field of a metal ceramic material. The preparation technology comprises the preparation steps as follows: proportioning and mixing: mixing the following raw materials in percentage by weight: 20-35% of industrial-purity titanium, 20-40% of aluminum, 20-45% of titanium nitride and 10-35% of zirconium dioxide powder; powder making: ball-grinding the mixed powder by utilizing a ball grinding system, wherein the grain size of the ball-ground powder is smaller than 0.5 micrometer; compaction: evenly mixing the ball-ground powder, and placing in a graphite die; sintering and forming: sintering in a vacuum hot-press sintering system; finally performing thermal treatment on a sintered body to obtain a finished product. The hardness and wear resistance of the metal ceramic obtained by adopting the preparation technology can be remarkably improved, and the metal ceramic has high wear resistance capability, toughness and machinability, as well as wide application prospects in the fields of both civil electromechanical industry and military industry.
Description
Technical field
The present invention relates to cermet material field, be specifically related to a kind of titanium, aluminium, titanium nitride, zirconium dioxide cermet material preparation technology.
Background technology
Zirconia ceramic has the feature of high strength, high rigidity, high temperature resistant, acid and alkali-resistance, has good conductivity simultaneously, and it has a wide range of applications in high-temperature structural material, corrosion-resistant and electric material.But it is poor that zirconia ceramic also exists toughness, while being hit, be easy to fragmentation, can not as metallic substance, there is good machinability, and heat-shock resistance and high-temp plastic ability lower.Adopt the zirconium dioxide of toughening technology, although toughness increases, compare with metallic substance, it is far away that its toughness index also differs, and can not meet the requirement of modern crafts.United States Patent (USP) 20030167969 discloses a kind of multivariant oxide ceramics and metallic combination pottery, the excellent toughness that can have metal component, have high rigidity and the high-wearing feature with stupalith, but multivariant oxide requires difference to sintering temperature separately, to sintering process, brings difficulty.Chinese patent 92114875.5 discloses a kind of sintering metal from spreading sintering, but adopt from the Technology that spreads sintering, awaits improving.Aluminium and titanium nitride ceramal had both had ceramic fire-resistant oxidation resistant, corrosion resistant performance, there is again the advantages such as mechanical division processibility that metal is the same, heat-shock resistance, high-temp plastic, electroconductibility, but there is the shortcoming that hardness is lower, resistance to acids and bases is poor, mechanical property is poor in aluminium and titanium nitride alloy.
Summary of the invention
The object of the invention is in order to overcome the shortcoming that zirconia ceramic impact toughness is low, machinability, heat-shock resistance and the lower shortcoming of high-temp plastic ability, and the shortcoming that hardness is lower, resistance to acids and bases is poor, mechanical property is poor of aluminium and titanium nitride alloy, the invention provides a kind of titanium, aluminium, titanium nitride, zirconium dioxide cermet material preparation technology.
The technical scheme that the present invention solves its technical problem employing is as follows: a kind of titanium, aluminium, titanium nitride, zirconium dioxide cermet material preparation technology, and its step is as follows:
1) prepare burden and mix: adopting commercially pure titanium, aluminium, titanium nitride, Zirconium dioxide powder raw material, according to mass percent ZrO
210-35%, Ti 20-35%, Al 20-40%, TiN 20-45% proportioning is mixed;
2) powder process: utilize ball mill that the powder preparing is carried out to ball milling, ball milling 2-4 hour, the powder particles after ball milling is less than 0.5 micron;
3) pressed compact: powder after ball milling is mixed, be positioned in graphite jig;
4) thermal sintering: carry out sintering in vacuum heating-press sintering system, vacuum tightness is 10
-2pa, is warming up to 1300-1400 ℃ with the temperature rise rate of 10-70 ℃/min, insulation 2-5 hour, and pressure is 30-70Mpa;
5) burn postheat treatment: be heated to 800-1000 ℃, insulation 2-3 hour, cooling fast after insulation.
The present invention utilizes titanium, aluminium, titanium nitride, zirconium dioxide element reacting to each other in sintering, forms compound and the sosoloid of titanium, aluminium, titanium nitride, can obtain the hardness higher than common metal material, and fragility is far below stupalith.The present invention utilizes zirconium dioxide to have two kinds of variants, in the time of 1000 ℃, by oblique system, change tetragonal system into, this crystallographic system changes reversible transition into, in process of cooling, crystallographic system changes with volumetric expansion, can improve the density of material, and internal fissure is produced to stress, hinder the expansion of crackle, improve the toughness of material.The more important thing is that the thermal expansivity of zirconium dioxide and aluminium, titanium nitride alloy are close, zirconium dioxide is combined with aluminium, titanium nitride alloy, the characteristic of the two is combined, mutually learn from other's strong points to offset one's weaknesses, obtain the matrix material that has the two advantage concurrently.
Adopt the beneficial effect of technique scheme to be: the hardness of titanium, aluminium, titanium nitride, zirconium dioxide cermet material and wear resistance are higher than aluminium, titanium nitride alloy, impact toughness and machinability are higher than zirconia ceramic, after thermal treatment, wherein in metallographic phase, the hardness of sosoloid and wear resistance are improved, the distribution of zirconium dioxide phase is comparatively even, make material have high antiwear property, the existence of aluminium, titanium nitride has improved the toughness of material.Aluminium has promoted sintering, has reduced sintering temperature.Sintering metal of the present invention is mainly used in the wear-resisting and shock resistance member under etching condition, in civilian electromechanical industries and military industry field, all has wide practical use.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
Adopt commercially pure titanium, aluminium, titanium nitride, Zirconium dioxide powder raw material, according to mass percent ZrO
210%, Ti 20%, and Al 30%, and TiN 40% proportioning is mixed; Utilize ball mill that the powder preparing is carried out to ball milling, ball milling 2 hours, the powder particles after ball milling is less than 0.5 micron; Powder after ball milling is mixed, be positioned in graphite jig; In vacuum heating-press sintering system, carry out sintering, vacuum tightness is 10
-2pa, intensification temperature is that the temperature rise rates with 10 ℃/min heat up before 200 ℃, the 50 ℃/min of take after 200 ℃ rises to sintering temperature as 1300 ℃, is incubated 2 hours, pressure 30Mpa; Burn postheat treatment, be heated to 800 ℃, be incubated 2 hours, cooling fast after insulation.
Embodiment 2
Adopt commercially pure titanium, aluminium, titanium nitride, Zirconium dioxide powder raw material, according to mass percent ZrO
220%, Ti 25%, Al20%, and TiN 35% proportioning is mixed; Utilize ball mill that the powder preparing is carried out to ball milling, ball milling 3 hours, the powder particles after ball milling is less than 0.5 micron; Powder after ball milling is mixed, be positioned in graphite jig; In vacuum heating-press sintering machine, carry out sintering, vacuum tightness is 10
-2pa, intensification temperature is that the temperature rise rates with 20 ℃/min heat up before 200 ℃, the 60 ℃/min of take after 200 ℃ rises to sintering temperature as 1350 ℃, is incubated 3 hours, pressure 50Mpa; Burn postheat treatment, be heated to 900 ℃, be incubated 2.5 hours, cooling fast after insulation.
Embodiment 3
Adopt commercially pure titanium, aluminium, titanium nitride, Zirconium dioxide powder raw material, according to mass percent ZrO
235%, Ti 20%, and Al 25%, and TiN 20% proportioning is mixed; Utilize ball mill that the powder preparing is carried out to ball milling, ball milling 4 hours, the powder particles after ball milling is less than 0.5 micron; Powder after ball milling is mixed, be positioned in graphite jig; In vacuum heating-press sintering system, carry out sintering, vacuum tightness is 10
-2pa, intensification temperature is that the temperature rise rates with 30 ℃/min heat up before 200 ℃, the 70 ℃/min of take after 200 ℃ rises to sintering temperature as 1400 ℃, is incubated 5 hours, pressure 70Mpa; Burn postheat treatment, be heated to 1000 ℃, be incubated 3 hours, cooling fast after insulation.
More than show and described ultimate principle of the present invention and principal character.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof
.
Claims (1)
1. titanium, aluminium, titanium nitride, a zirconium dioxide cermet material preparation technology, is characterized in that, its preparation process is as follows:
Prepare burden and mix: adopting commercially pure titanium, aluminium, titanium nitride, Zirconium dioxide powder raw material, according to mass percent ZrO
210-35%, Ti 20-35%, Al 20-40%, TiN 20-45% proportioning is mixed;
Powder process: utilize ball mill that the powder preparing is carried out to ball milling, ball milling 2-4 hour, the powder particles after ball milling is less than 0.5 micron;
Pressed compact: powder after ball milling is mixed, be positioned in graphite jig;
Thermal sintering: carry out sintering in vacuum heating-press sintering system, vacuum tightness is 10
-2pa, is warming up to 1300-1400 ℃ with the temperature rise rate of 10-70 ℃/min, insulation 2-5 hour, and pressure is 30-70Mpa;
Burn postheat treatment: be heated to 800-1000 ℃, insulation 2-3 hour, cooling fast after insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455261.8A CN103540782A (en) | 2013-09-30 | 2013-09-30 | Preparation technology of titanium, aluminum, titanium nitride and zirconium dioxide metal ceramic material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455261.8A CN103540782A (en) | 2013-09-30 | 2013-09-30 | Preparation technology of titanium, aluminum, titanium nitride and zirconium dioxide metal ceramic material |
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| CN103540782A true CN103540782A (en) | 2014-01-29 |
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| CN201310455261.8A Pending CN103540782A (en) | 2013-09-30 | 2013-09-30 | Preparation technology of titanium, aluminum, titanium nitride and zirconium dioxide metal ceramic material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694809A (en) * | 2015-03-09 | 2015-06-10 | 苏州圣谱拉新材料科技有限公司 | Composite ceramic aluminum material and preparation method thereof |
| CN115198211A (en) * | 2022-07-05 | 2022-10-18 | 贵州航天天马机电科技有限公司 | Toughening method of TiCx-Cu cermet |
-
2013
- 2013-09-30 CN CN201310455261.8A patent/CN103540782A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694809A (en) * | 2015-03-09 | 2015-06-10 | 苏州圣谱拉新材料科技有限公司 | Composite ceramic aluminum material and preparation method thereof |
| CN115198211A (en) * | 2022-07-05 | 2022-10-18 | 贵州航天天马机电科技有限公司 | Toughening method of TiCx-Cu cermet |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140129 |
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| WD01 | Invention patent application deemed withdrawn after publication |