Fabrication of SiCp/ZL101 Composites Substrate with Near-Net-Shape

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SiCp/Z101 composites substrate can be successfully fabricated by pressureless infiltration of ZL101 alloy liquid into porous SiCp preform, the relative density are nearly up to 99%. This is mainly because that generated SiO2 phase on the surface after sintering of SiCp not only has joint function to the porous of SiC perform, but also obtains two-phase wetting between SiC and Al matrix through the interface reaction, resulting in promoting spontaneous infiltration. SiC preforms have almost no change of shapes and sizes after infiltration of Al liquid and can achieve near-net-shape of the composites for substrate. Volume fraction of SiC can be effectively improved by using binary mixture particles with the diameter ratio of 11:1, through which the properties of substrate can be controlled effctively. By the addition of SiCp, strength of the composites is improved remarkably, and its elastic modulus increases correspondingly about one time, the increase of SiC volume fraction can markedly reduce coefficient of thermal expansion (CTE) of composites , but meanwhile decrease thermal conductivity(TC) of composites, and its TC (at 50 °C ranges from 120.7 W/(m•k) to 99.4 W/(m•k) and its mean linear CTE (25°C to 50°C ) ranges from 9.47×10−6 k-1 to 7.05×10−6 k-1 as volume fraction of SiC ranges from 38% to 68%.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

4459-4465

DOI:

10.4028/www.scientific.net/AMR.189-193.4459

Citation:

X. L. Zhou et al., "Fabrication of SiCp/ZL101 Composites Substrate with Near-Net-Shape", Advanced Materials Research, Vols. 189-193, pp. 4459-4465, 2011

Online since:

February 2011

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Price:

$35.00

[1] M.A. Occhionero R.A. Hay: J. Thermal Management Solutions 2000 HDI Conference. Vol. 4 (2000), p.26.

[2] RAWAI S: J. JOM. Vol. 4 ( 2001), p.14217.

[3] Hozer L, Lee J R, Chiang Y M: J. Mater Sci Eng A. Vol. 195 (1995), p.131.

[4] CUI Yan, CHEN Xu-dong: J. The Chinese Journal of Nonferrous Metals. Vol. 14 (2004), p.33.

[5] BISWAS D K, GATICA J E , TEWARI S N: J. Metall . Mater . Trans. Vol. 29 (1998), p.3772385.

[6] Hunt M: J. Mater Eng. Vol. 107 (1990) p.33.

[7] CHU Ke, JIA Cheng-chang, YIN Fa-zhang, et al.:J. Acta Material Composites Sinica. Vol. 23 (2006), p.108.

[8] ZHANG Qiang, CHEN Guo-qin, WU Gao-hui, et al.: J. The Chinese Journal of Nonferrous Metals. Vol. 13 (2003), p.1180.

[9] LIU Jun-wu, ZHENG Zhi-xian, WANG Jian-min, et al.: J. JChin Cera Soc. Vol. 35 (2007), p.1.

[10] Luo Z P, Song Y G, Zhang S Q: J. Scrip Mater. Vol. 45 (2001), p.1183.

[11] SHI Zhong-liang,OCHIAI S, SOJO M: J. Journal of Materials Research. Vol. 16(2001), p.400.

[12] C.M. Friend: J. J. Mater. Sci. Vol. 26 (1991), p.225.

[13] E. Candan: J. Materials Letters. Vol. 60 (2006), p.1204.

[14] LIU Jun-wu, LU Jun, WANG Jian-min, et al.: J. Trans Mater Heat Treat. Vol. 27 (2006), p.16.

[15] Carl Zweben: J. Optoelectronics. Vol. 9(2002), p.37.

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