| 不同配比的二乙烯基苯/聚碳硅烷热交联对SiC陶瓷显微结构的影响 |
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| 引用本文： | 陈曼华%陈朝辉%肖安.不同配比的二乙烯基苯/聚碳硅烷热交联对SiC陶瓷显微结构的影响[J].宇航材料工艺,2004,34(4):29-31. |
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| 作者姓名： | 陈曼华%陈朝辉%肖安 |
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| 作者单位： | 国防科技大学航天与材料学院重点实验室,长沙,410073 |
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| 摘 要： | 研究了不同配比的二乙烯基苯(DVB)／聚碳硅烷(PCS)热交联对陶瓷显微结构的影响。通过加热的方法调节体系粘度，满足了降低DVB配比条件下的交联工艺要求。结果表明：交联中适当地降低DVB配比，可增加交联产物的致密化程度，从而增加SiC陶瓷的致密化程度，有利于陶瓷显微结构的改善。
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| 关 键 词： | 配比 二乙烯基苯／聚碳硅烷 热交联 SiC陶瓷 显微结构 |
Influence of DVB/PCS Cross-linking with Various Weight Ratios on SiC Ceramic Microstructure |
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| Chen Manhua,Chen Zhaohui,Xiao An.Influence of DVB/PCS Cross-linking with Various Weight Ratios on SiC Ceramic Microstructure[J].Aerospace Materials & Technology,2004,34(4):29-31. |
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| Authors: | Chen Manhua Chen Zhaohui Xiao An |
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| Abstract: | The influence of cross-linking of divinylbenzene (DVB)/polycarbosilane(PCS) with various weight ratios on ceramic microstructure is investigated.Reduced viscosity by heat may satisfy the cross-linking process requirement under decreasing weight ratio of DVB.Experimental results show that proper decrease of weight ratio of DVB may increase the dense degree of cross-lingking of SiC ceramics with improvement of ceramic microstructures. |
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| Keywords: | Precursor Divinylbenzene Polycarbosilane Cross-linking Ceramic Microstructure |
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