中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (2): 90-92.

• 研究论文 • 上一篇    下一篇

聚碳硅烷/纳米镍粉的热裂解

王军, 宋永才, 冯春祥   

  1. 国防科学技术大学材料工程与应用化学系, 长沙 410073
  • 收稿日期:1996-09-17 修回日期:1996-12-13 出版日期:1997-04-10 发布日期:1997-04-10
  • 基金资助:
    国家攻关计划;“863”高技术资助

Pyrolysis of Polycarbosilane/Nano Nickel Particles

Wang Jun, Song Yongcai, Feng Chunxiang   

  1. Fifth Department of National University of Defense and Technology, Changsha 410073
  • Received:1996-09-17 Revised:1996-12-13 Published:1997-04-10 Online:1997-04-10

PDF

582

被引次数

14 | 3

摘要： 聚碳硅烷(PCS)是一种有机陶瓷先驱体, 广泛应用于制备陶瓷纤维和复相陶瓷[ 1]. 本文以纳米金属Ni粉为活性填料, 通过功率超声将其加入到聚碳硅烷体系中, 经熔融纺丝制得掺混纳米 Ni 粉的聚碳硅烷纤维, 运用 IR、XRD、TG 等分析手段研究了这种纤维的热裂解过程, 分析了镍在陶瓷纤维内的存在状态。

关键词: 聚碳硅烷, 纳米材料, 镍, 热解, 碳化硅纤维

Abstract: In this paper the pyrolytic process of polycarbosilane mixed with nano nickel particles was studied. This process involves two stages: the transition of organosilicon polymer to inorganic amorphous state and then to crystallite. The dominative form in pyrolytic products is Ni2Si. The addition of nano nickel particles accelerates the growth of β-SiC and the increase of crystallite size.

Key words: polycarbosilane, nano material, nickel, pyrolysis, silicon carbide fibers

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