Crystallization Behavior of Polymer Derived Silicon Carbide Sintered Through Microwave Heating Technique
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2017年第6期
论文作者：熊俊 HUANG Qing
文章页码：1368 - 1373
摘 要：A self-crosslinkable liquid highly branched polycarbosilane（LHBPCS） with 5.07% vinyl group and a C/Si ratio of 1.33 was used as the precursor to prepare Si C ceramic material. Microwave heating technique and conventional heating method were applied for the heating treatment process. It was found that, compared with conventional heating method, microwave heating technique could enhance the crystallinity of Si C ceramic material with small grain size at much lower curing temperature and within shorter time. In addition, the SiO2 additive could lead to less α-Si C and excess carbon, but worsen the crystallinity of β-Si C in the final samples.
熊俊，HUANG Qing
School of Materials Science and Engineering, Tianjin University
摘 要：A self-crosslinkable liquid highly branched polycarbosilane（LHBPCS） with 5.07% vinyl group and a C/Si ratio of 1.33 was used as the precursor to prepare Si C ceramic material. Microwave heating technique and conventional heating method were applied for the heating treatment process. It was found that, compared with conventional heating method, microwave heating technique could enhance the crystallinity of Si C ceramic material with small grain size at much lower curing temperature and within shorter time. In addition, the SiO2 additive could lead to less α-Si C and excess carbon, but worsen the crystallinity of β-Si C in the final samples.
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