引用本文: | 冯春祥,刘心慰,杨一明,等.连续碳化硅纤维的研制[J].国防科技大学学报,1993,15(1):66-72.[点击复制] |
Feng Chunxiang,Liu Xinwei,Yang Yiming,et al.Preparation of Continuous Silicon carbide Fiber[J].Journal of National University of Defense Technology,1993,15(1):66-72[点击复制] |
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连续碳化硅纤维的研制 |
冯春祥, 刘心慰, 杨一明, 陆逸, 宋永才, 雷绍增 |
(材料科学与应用化学系)
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摘要: |
本文研究了用先驱体法制备连续碳化硅(SiC)纤维的全过程。通过常压高温裂解法制得纺丝性能好的聚碳硅烷,经100孔熔融纺丝、不熔化处理和高温烧成等一系列工艺处理,制得了高性能的SiC纤维。该纤维单丝直径 8~15微米,连续长度达 100米,抗拉强度为2~2.3GPa,抗拉模量178GPa,主要性能达到日本同类产品八十年代的水平。本文还对制备工艺的一些基本规律及连续纤维的主要性能进行了研究。 |
关键词: 聚碳硅烷,碳化硅纤维,有机先驱体,陶瓷纤维 |
DOI: |
投稿日期:1992-05-04 |
基金项目:部委级科技进步一等奖 |
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Preparation of Continuous Silicon carbide Fiber |
Feng Chunxiang, Liu Xinwei, Yang Yiming, Lu Yi, Song Yongcai, Lei Shaozeng |
(Department of Material Science and Applied Chemistry)
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Abstract: |
A process was studied to make continuous silicon carbide fiber from polycarbosilane (PC) served as precursor. The manufacture process includes the synthesis of PC,and melt spinning in an equipment with a nozzle of 100 holes to produce 10-15μm diameter fibers. These fibers were cured single ply yarn, and were coutinuously pyrolyzed to 1200℃ in an inert environment. They then undergo siziug,dry and drum reel to produce amorphous high performance ceramic fiber. The fibers have a tansile strength of 2-2.3GPa and an elastic moduli of 178GPa. Their length>100m. The effect between structure and properties of SiC fiber made by various technical parameters has been studied in this paper. |
Keywords: synthesis,polycarbosilane silicon carbide fiber,precursor,composites |
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