Effect of the polycarbosilane structure on its final ceramic yield
| Autor: | Haiping Xia, Muhe Huang, Houbu Li, Yiguang Wang, Huibin Tu, Litong Zhang, Laifei Cheng, Zhaoju Yu |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Materials science Fabrication Yield (engineering) Mineralogy Polymer chemistry.chemical_compound Differential scanning calorimetry chemistry Chemical engineering visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Polysilane Non oxide ceramics Ceramic |
| Zdroj: | Journal of the European Ceramic Society. 28:887-891 |
| ISSN: | 0955-2219 |
| DOI: | 10.1016/j.jeurceramsoc.2007.07.020 |
| Popis: | The ceramic yield of a new polycarbosilane is discussed based on its structure, including vinyl functionality, branched structure, as well as polymer molecular weight. The cross-linking behavior of this polymer is studied up to 400 °C. According to the cross-linking mechanism, the optimized heat-treatment conditions can be obtained for a high ceramic yield. The product pyrolysized at 1400 °C has a composition close to 1.1:1 Si:C with a ceramic yield of about 70%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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