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A kind of c/c-sic-zrc-tic composite material and preparation method thereof

A c-sic-zrc-tic, composite material technology, applied in chemical instruments and methods, layered products, ceramic layered products, etc., to achieve the effect of shortening the preparation cycle, fast and efficient process, and simplifying the process flow

Active Publication Date: 2016-10-26
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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  • A kind of c/c-sic-zrc-tic composite material and preparation method thereof
  • A kind of c/c-sic-zrc-tic composite material and preparation method thereof
  • A kind of 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] 100 g of the mixed powder was weighed, placed in a graphite jar with a diameter of 80 mm, and spread 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 Patents(China)
IPC IPC(8): B32B18/00C04B35/83C04B35/565C04B35/56C04B35/622
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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