Polycarbosilane derived Ti3SiC2 |
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| Authors: | Luo Yongming Zheng Zhimin Xu Caihong Mei Xuening |
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| Affiliation: | Beijing National Laboratory of Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Science, Beijing, 100080, PR China |
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| Abstract: | Titanium silicon carbide (Ti3SiC2) ceramic was synthesized by in-situ reaction of metal titanium and polycarbosilane. Reaction mechanisms which lead to the formation of Ti3SiC2 were suggested on the basis of XRD analysis. The content of Ti3SiC2 reached 93% in products obtained from heating the Ti/polycarbosilane green compact at 1400 °C in Ar. The morphology and compositions of the products were examined by SEM equipped with EDX. The typical laminate structure of Ti3SiC2 particles with 1-4 μm in thickness and 4-15 μm in length was observed. EDX results showed that the atomic ratio of Ti:Si:C of grains is close to 3:1:2, which agrees with Ti3SiC2 composition. |
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| Keywords: | Ti3SiC2 Polycarbosilane In-situ reaction X-ray techniques Microstructure |
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