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无机材料学报

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NbCx-C三维网状纤维的制备

徐桂英; 李建保; 黄勇; 谢志鹏   

  1. 清华大学新型陶瓷与精细工艺国家重点实验室, 北京 100084
  • 收稿日期:1998-10-19 修回日期:1999-01-25 出版日期:1999-10-20 网络出版日期:1999-10-20

Fabrication of NbCx-C Three-Dimentional Netted Fibers

XU Gut-Ying; LI Jian-Bao; HUANG Yong; XIE Zhi-Peng   

  1. State Key Laborutory of New Ceramics and Fine Processing; Dept. of Materials Science andEngineering; Tsinghua University Beijing 100084 China
  • Received:1998-10-19 Revised:1999-01-25 Published:1999-10-20 Online:1999-10-20

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摘要： 采用碳热还原法和不同的添加剂在温度为９７０～１１２０℃、压力为０．１ＭＰａ的Ｎ２条件下，在石墨电阻炉内首次制备出ＮｂＣｘ（ｘ＝０．９８）－Ｃ三维网状纤维．三维网状纤维的直径为１２～３８ｍ，网的环长为０．２２～２．２μｍ，网孔径为７０～７０１μｍ．本文详细研究了制备的工艺条件及相应的网状纤维的形貌．

关键词: NbCx－C三维网状纤维, 制备, 形貌

Abstract: By the carbothermal method and different additives, NbCx(x=0.98)--C three-dimensional netted fibers were prepared in graphite resistance furnace with 0.1 MPa/N2 ambient atmosphere attemperatures of 1070 to 1670℃. The diameters of 3-D netted fibers are 12-38μm, the circumferences are 0.22-2.2mm, the hole diameters are 70-701μm. The proccesing conditions for fabricating NbCx-C 3-D netted fibers, and relative morphology of NbCx-C netted fibers were investigated indetail.

Key words: carbothermal method, NbCx-C netted fibers, processing condition, the morphology

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