Preparation of Cf/SiC Composites by Liquid Silicon Infiltration

Chun Peng Wang; Jie Tang; Hai Lin Liu; Yan Li Huo; Yu Feng Chen; Xiao Ying Peng

doi:10.4028/www.scientific.net/KEM.434-435.103

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 434-435Preparation of Cf/SiC Composites by Liquid Silicon...

Preparation of C_f/SiC Composites by Liquid Silicon Infiltration

Abstract:

The Cf/SiC made from carbon fiber preforms infiltrated by phenol resin, pure carbon slurry and aqueous C/SiC slurry showed different binding strength between carbon fiber and SiC matrix, thus influenced the fracture behavior of the composite. The fracture toughness of the Cf/SiC composites with the value of 9.82MPa•m1/2,improved remarkably compared with reaction- bonded silicon carbide (RBSC). But the flexural strength was less than 100 MPa, because of the existence of considerable amount of pores in C/SiC composites.

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Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

103-105

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.103

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Online since:

March 2010

Authors:

Chun Peng Wang, Jie Tang, Hai Lin Liu, Yan Li Huo, Yu Feng Chen, Xiao Ying Peng

Keywords:

C_f/SiC Composite, Liquid Silicon Infiltration (LSI), Mechanical Property

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References

[1] Y.M. Zhang, J.H. Zhang, et al.: Materials Letters Vol. 58 (2004), pp.1204-1208.

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[3] J. Yang, O.J. Iiegbusi: Composites Part A Vol. 31 (2000), pp.617-625 Fig. 3 The SEM images of S1 (a) before LSI (b) after LSI Fig. 4 The SEM imagines of composites (a) S2 (b) S3.

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