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C/C-SiC-ZrC-TiC composite material and preparation method thereof

A technology of c-sic-zrc-tic and composite materials, which is applied in the field of ceramic modified C/C composite materials and its preparation, to achieve the effects of reducing thermal mismatch, preventing corrosion, and alleviating stress concentration

Active Publication Date: 2015-06-03
深圳金羽先进材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the preparation of ternary ceramic-modified C / C composites with layered structure by one-time reaction infiltration process has not been reported yet.

Method used

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  • C/C-SiC-ZrC-TiC composite material and preparation method thereof
  • C/C-SiC-ZrC-TiC composite material and preparation method thereof
  • C/C-SiC-ZrC-TiC composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Put zirconium powder, titanium powder and silicon powder with a purity greater than 99% in the ball mill tank at an atomic ratio of 50%, 10%, and 39%, respectively, and at the same time add aluminum powder at an atomic ratio of 1%, and fill it with argon before ball milling , the mixed powder was prepared by a planetary ball mill, and the ball milling medium was ZrO 2 , the ball-to-material ratio is 4:1, the milling speed is 400r / min, and the milling time is 10h. After the mixed powder is vacuum-dried at low temperature, it will be used in the next step.

[0055] Set the density to 0.7g / cm 3 The finely woven needle felt fiber preform was densified to 1.4 g / cm by chemical vapor deposition 3 C / C composite material, then cut the composite material into 60*55*15mm 3 The blocks were dried in vacuum at low temperature and prepared for use in subsequent steps.

[0056] Weigh 100 g of the mixed powder, place it in a graphite jar with a diameter of 80 mm, and spread it flat;...

Embodiment 2

[0059]Put zirconium powder, titanium powder and silicon powder with a purity of more than 99% in the ball mill tank at an atomic ratio of 59.5%, 30%, and 10%, respectively, and add iron powder at an atomic ratio of 0.5%, and fill it with argon before ball milling , the mixed powder was obtained through a planetary ball mill, the ball milling medium was stainless steel, the ball-to-material ratio was 10:1, the ball milling speed was 150r / min, and the milling time was 20h. After the mixed powder is vacuum-dried at low temperature, it will be used in the next step.

[0060] Set the density to 0.1g / cm 3 The short-fiber laminated needle-punched preform was densified to 0.8g / cm by chemical vapor deposition 3 C / C composite material, then cut the composite material into 60*55*15mm 3 The blocks were dried in vacuum at low temperature and prepared for use in subsequent steps.

[0061] Weigh 100 g of the mixed powder, place it in a graphite jar with a diameter of 80 mm, and spread it ...

Embodiment 3

[0064] Put zirconium powder, titanium powder and silicon powder with a purity of more than 99% in the ball mill tank at an atomic ratio of 59%, 20%, and 20%, respectively, and add copper powder at an atomic ratio of 1%, and fill it with argon before ball milling , the mixed powder was prepared by a planetary ball mill, and the ball milling medium was ZrO 2 , the ball-to-material ratio is 6:1, the milling speed is 250r / min, and the milling time is 15h. After the mixed powder is vacuum-dried at low temperature, it will be used in the next step.

[0065] Set the density to 0.6g / cm 3 The needle-punched integral felt fiber preform is densified to 1.2g / cm by chemical vapor deposition 3 C / C composite material, then cut the composite material into 60*55*15mm 3 The blocks were dried in vacuum at low temperature and prepared for use in subsequent steps.

[0066] Weigh 100 g of the mixed powder, place it in a graphite jar with a diameter of 80 mm, and spread it flat; then, place the ...

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Abstract

The invention discloses a C / C-SiC-ZrC-TiC composite material and a preparation method thereof. The composite material is composed of a carbon fibre, a pyrolytic carbon, a main matrix phase ZrC-TiC and a sub matrix phase SiC. The composite material is characterized in that the SiC is used as an interface layer for separating the pyrolytic carbon from the ZrC-TiC. The preparation method comprises the following steps: melting the mixed powder of Zr, Ti and Si, permeating into the inside of the low-density C / C composite material through a capillary action, forming a ceramic phase in a hole through an in situ reaction to obtain the C / C-SiC-ZrC-TiC composite material. The preparation method is rapid and effective and low in cost; the prepared composite material has excellent super-high temperature ablation resistance performance and simultaneously has excellent strength, breaking tenacity and thermal shock resistance.

Description

technical field [0001] The invention relates to a ceramic modified C / C composite material and a preparation method thereof, in particular to a C / C-SiC-ZrC-TiC composite material and a preparation method thereof. Background technique [0002] C / C composite materials have excellent properties such as low density, high strength, high modulus, high temperature resistance, thermal shock resistance, etc., and are widely used in heat-resistant structural parts in the aerospace field. There is also great potential for software applications. However, in the ultra-high temperature ablation environment, the high temperature and high speed airflow will gradually erode and oxidize the C / C composite material, so it is necessary to use matrix modification to introduce anti-ablation components into the matrix phase to improve the ablation resistance of the composite material performance. [0003] Literature "Microstructure and ablation behavior of carbon / carbon composites infiltrated with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/83C04B35/565C04B35/56C04B35/622
Inventor 熊翔曾毅王滴泥张红波孙威王雅雷吴强张响
Owner 深圳金羽先进材料有限公司
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