Fabrication and mechanical properties of carbon short fiber reinforced barium aluminosilicate glass–ceramic matrix composites

2008 ◽  
Vol 68 (7-8) ◽  
pp. 1710-1717 ◽  
Author(s):  
Feng Ye ◽  
Limeng Liu ◽  
Liangjun Huang
Keyword(s):  
Mechanical Properties ◽  
Glass Ceramic ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Short Fiber ◽  
Aluminosilicate Glass ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Barium Aluminosilicate

Fabrication, microstructure, and mechanical properties of TaC particulate and SiC fiber-reinforced lithia-alumina-silica composites

1995 ◽  
Vol 10 (3) ◽  
pp. 602-608 ◽  
Author(s):  
Hyun-Ho Shin ◽  
Randolph Kirchain ◽  
Robert F. Speyer
Keyword(s):  
Mechanical Properties ◽  
Glass Ceramic ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Matrix Composites ◽  
Particulate Reinforcement ◽  
Sic Fiber ◽  
Reinforced Composite ◽  
Ceramic Route ◽  
Particulate Reinforced

Additions of O to 9 mol % Ta2O5 to a lithia-alumina-silica glass-ceramic matrix Nicalon SiC-reinforced composite increased the elastic modulus and ultimate strength of the composite. The additive fostered sphereulitic growth of β-eucriptite solid solution crystals which concentrated Ta2O5 at sphereulite boundaries and adjacent to the fiber-matrix carbon-rich interphases. These regions reacted with the interphases as well as soluble carbon monoxide gas to convert them to TaC. The former reaction was shown to be thermodynamically favorable above 983 °C, while the latter was favorable above 1249 °C. The improvement in mechanical properties was attributed to TaC particulate reinforcement, and suggests a simple glass-ceramic route to the fabrication of particulate-reinforced ceramic matrix composites.

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