Fabrication of Ceramic-Metal Composites by Melt Infiltration of Moso-Bamboo-Derived Porous SiC |
| Journal |
Key Engineering Materials (Volume 351) |
| Volume |
Composite Materials V |
| Edited by |
Di Zhang, Jingkun Guo and Chi Y. A. Tsao |
| Pages |
37-42 |
| DOI |
10.4028/www.scientific.net/KEM.351.37 |
| Online since |
October, 2007 |
| Authors |
Yung Jen Lin,
Shi Yi Lin
|
| Keywords |
Bamboo-Derived Ceramic, Ceramic-Metal Composite, Melt Infiltration, SiC/Al Composite, SiC/Cu Composite, Silicon Carbide (SiC) |
| Abstract |
Copper and 2024 aluminum alloy were melt-infiltrated into porous β-SiC to form SiC/Cu
and SiC/Al composites. The porous β-SiC was prepared using Moso bamboo as the bio-template
and had structural characteristics of bamboo. The Cu infiltration occurred as low as 1100°C and
became significant at 1200°C. After infiltration at 1300°C for 4 h, there was still ~5 % of residual
porosity. For the composites with low degree of metal infiltration, the samples fractured like the
bamboo-structured porous SiC. For the composites with high degree of infiltration, the sample
behaved like monolithic copper. In the infiltration of Al alloy, infiltration occurred at 900°C. Higher
Infiltration temperatures would result in significant formation of Al4C3, which gradually
decomposed in air. |
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