|
|||||
|
|
Combustion synthesis of high porosity SiC foam with nanosized grains |
|
| Authors: | JF Qiu JT Li KL Smirnov |
| Affiliation: | 1. Graduated School of the Chinese Academy of Sciences, Beijing 100039, PR China;2. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China;3. Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka 142432, Russia |
| Abstract: | High porosity silicon carbide (SiC) foam with nanosized grains was synthesized by a newly developed process involving two steps: (i) preparation of Si/C foam by gel-casting technique and (ii) fabrication of SiC foam by combustion Si/C foam in nitrogen atmosphere. The as-synthesized SiC foam with a high porosity in the range 70–90% exhibited an attractive strength up to 1.6 MPa. SEM analysis showed that the foam struts consisted of tightly bonded SiC particles with a grain size of 80–300 nm. |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |