1. Ultralight and mechanically robust SiC foams with interconnected cellular architecture.
- Author
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Liu, Jingjing, Ren, Bo, Rong, Yedong, Lu, Yuju, Zhao, Yi, Wang, Lu, Xi, Xiaoqing, Yang, Jinlong, and Huang, Yong
- Subjects
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COMPRESSIVE strength , *RAW materials , *URETHANE foam , *POROSITY , *FOAM , *MULLITE - Abstract
Engineering highly porous SiC foams with interconnected cellular architecture and satisfactory compressive strength for the practical applications remains a challenging task. In the current work, SiC foams bonded by in-situ formed mullite phase were fabricated via polyurethane foaming using boehmite sol-coated SiC powder as the raw material. The strategy in the current work endowed the resultant products with ultrahigh porosity, interconnected pore structure, and a robust mullite bonding phase among the SiC particles. The resulting products with this cellular architecture possessed a high porosity level of 88.5% and maintained a robust compressive strength of 2.56 MPa. Our results showed that as-prepared products are promising for practical applications in the filtration, adsorption and catalytic areas. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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