Zirconium titanium carbide particle reinforced silicon aluminum titanium carbide zirconium based composite material and preparation thereof

A particle-reinforced, zirconium-titanium carbide technology, applied in the field of ceramic matrix composite materials and preparation, can solve the problems of low hardness and wear resistance, decreased high temperature strength, limited wide application, etc., to achieve enhanced enhancement effect, good compatibility, high purity effect

Inactive Publication Date: 2009-01-14
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

But as a structural material, Ti 3 SiC 2 The hardness and wear resistance are low, which limits its wide application
Studies in Acta Materials (Acta Materials 52, 3631 (2004)) and Materials Research Innovations (Material Research Innovations 8, 97 (2004)) show that silicon aluminum titanium carbide solid solution is formed by substituting an appropriate amount of aluminum for silicon in silicon titanium carbide (Ti 3 Si(Al)C 2 ), can improve its oxidation resistance in a relatively large range, but its high temperature strength is greatly reduced

Method used

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  • Zirconium titanium carbide particle reinforced silicon aluminum titanium carbide zirconium based composite material and preparation thereof
  • Zirconium titanium carbide particle reinforced silicon aluminum titanium carbide zirconium based composite material and preparation thereof
  • Zirconium titanium carbide particle reinforced silicon aluminum titanium carbide zirconium based composite material and preparation thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 103.48 grams of titanium powder, 33.12 grams of zirconium powder, 26.40 grams of silicon powder, 0.52 grams of aluminum powder, and 20.68 grams of graphite (enhanced phase (Zr 0.935 Ti 0.065 ) The content of C is about 5vol.%, and the matrix is ​​(Ti 0.9 Zr 0.1 ) Si 0.98 al 0.02 C 2 ) in an alcohol medium for 10 hours, then put it into a graphite mold for cold pressing, the applied pressure is 5MPa, and put it into a hot-press furnace for hot-press sintering. The heating rate is 15°C / min, heated to 1550°C, and at the same time, the pressure is gradually increased to 25MPa, and the temperature is kept for 1 hour. Then the temperature was lowered to 1400°C, and the temperature was kept at 1400°C for 0.5 hours, and the pressure was maintained at 25MPa during the whole heat preservation process. The whole sintering process is carried out under the protection of argon, and the obtained reaction product is mainly (TiZr) through X-ray diffraction analysis. 3 Si(Al)C 2 ...

Embodiment 2

[0026] 96.02 grams of titanium powder, 42.28 grams of zirconium powder, 23.78 grams of silicon powder, 1.20 grams of aluminum powder, and 20.72 grams of graphite (enhanced phase (Zr 0.92 Ti 0.08 ) The content of C is about 10vol.%, and the matrix is ​​(Ti 0.9 Zr 0.1 ) Si 0.98 al 0.02 C 2 ) was ball milled in alcohol medium for 15 hours, then put into a graphite mold and cold-pressed to form, the applied pressure was 5MPa, and put into a hot-press furnace for hot-press sintering. The heating rate is 10°C / min, heated to 1560°C, while the pressure is gradually increased to 30MPa, and kept for 1 hour. Then the temperature was lowered to 1400°C, and the temperature was kept at 1400°C for 0.5 hours, and the pressure was maintained at 30MPa during the whole heat preservation process. The whole sintering process is carried out under the protection of argon, and the obtained reaction product is analyzed by X-ray diffraction as (TiZr) 3 Si(Al)C 2 and (ZrTi)C, (ZrTi)C dispersed i...

Embodiment 3

[0028] The particle size range is 82.12 grams of titanium powder, 59.70 grams of zirconium powder, 20.34 grams of silicon powder, 2.04 grams of aluminum powder, and 20.82 grams of graphite (enhanced phase (Zr 0.93 Ti 0.07 ) The content of C is about 20vol.%, and the matrix is ​​(Ti 0.9 Zr 0.1 ) Si 0.90 al 0.10 C 2 ) in an alcohol medium for 20 hours, then put it into a graphite mold for cold pressing, and the applied pressure is 10MPa, and put it into a hot-press furnace for hot-press sintering. The heating rate is 20°C / min, heated to 1600°C, while the pressure is gradually increased to 40MPa, and kept for 1 hour. Then the temperature was lowered to 1400°C, and the temperature was kept at 1400°C for 0.5 hours, and the pressure was maintained at 40MPa during the whole heat preservation process. The whole sintering process is carried out under the protection of argon, and the obtained reaction product is analyzed by X-ray diffraction as (TiZr) 3 Si(Al)C 2 and (ZrTi)C, (Z...

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Abstract

The invention relates to a ceramic-matrix composite material as well as a preparation method thereof, in particular to a titanium zirconium carbide particle reinforced silica-alumina titanium zirconium carbide matrix composite material and a preparation method thereof. A zirconium titanium carbide particle reinforced silica-alumina titanium zirconium carbide solid solution adopting the in-situ synthesis has a zirconium titanium carbide particle reinforced phase with the volume percentage of 5 to 30 percent; and the preparation method comprises: firstly, taking a titanium powder, a zirconium powder, a silicon powder, an aluminum powder and a graphite powder as raw materials, mixing the materials by a physical mechanical method for 10 to 25 hours, putting the materials in a graphite mould for cold briquetting, with the exerted pressure of 5 to 20MPa, and sintering the materials in a hot pressing furnace input with a protective atmosphere, with a rate of rise of temperature of 5 to 50DEG C/min, a sintering temperature of between 1400 and 1650 DEG C, the sintering time of 0.5 to 2 hours, and a sintering pressure of 20 to 40MPa. The composite material and the method can prepare the titanium zirconium carbide particle reinforced silica-alumina titanium zirconium carbide matrix composite material with excellent combination properties such as high purity, high density, high hardness, high toughness and high-temperature mechanical property under rather low temperature and in a short period of time.

Description

technical field [0001] The invention relates to a ceramic matrix composite material and a preparation method, in particular to a zirconium carbide titanium ((ZrTi)C) particle reinforced silicon aluminum titanium zirconium carbide ((TiZr) prepared by in-situ hot pressing / solid-liquid phase reaction 3 Si(Al)C 2 ) matrix composite material and its preparation method. Background technique [0002] Ti 3 SiC 2 It is a new type of ternary layered ceramic material. Research in the Journal of the American Ceramic Society (Journal of the American Ceramic Society 79, 1953 (1996)) shows that it combines many advantages of ceramics and metals, with low density, high modulus, high strength, high electrical conductivity and thermal conductivity. And easy processing and other characteristics, so it has broad application prospects. But as a structural material, Ti 3 SiC 2 Its hardness and wear resistance are low, which limits its wide application. Studies in Acta Materials (Acta Mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/56C04B35/78
Inventor 周延春万德田包亦望
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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