Wear-mechanical properties of filler-added liquid silicon infiltration C/C-SiC composites

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A carbon fiber reinforced silicon carbide matrix (C/C-SiC) composites material was manufactured by introducing a filler into the liquid silicon infiltration (LSI) process. The filler consisted of Si: Carbon black = 1: 1 mixed with a phenol resin. Use of the filler resulted in a negligible reduction in the residual free Si of approximately 0.7% but increased 15% of reacted SiC amount. Dilatometer and X-ray diffraction (XRD) evaluations also confirmed improved formation of reaction-bonded silicon carbide (SiC) in the matrix. The wear rate was decreased more than 2.5-fold, indicating significantly improved wear-resistance properties. However, flexural strength gradually decreased and fiber damage was observed in fracture surface with increases in filler content. (C) 2012 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2013-02
Language
English
Article Type
Article
Keywords

CERAMIC-MATRIX COMPOSITES; FIBER-REINFORCED PLASTICS; SIC/SIC COMPOSITES; BEHAVIOR; TEMPERATURE; FRICTION; CARBIDE; STRENGTH; SPACE; MICROSTRUCTURE

Citation

MATERIALS & DESIGN, v.44, pp.107 - 113

ISSN
0261-3069
DOI
10.1016/j.matdes.2012.07.064
URI
http://hdl.handle.net/10203/81914
Appears in Collection
MS-Journal Papers(저널논문)
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