无机材料学报 ›› 2020, Vol. 35 ›› Issue (12): 1385-1390.DOI: 10.15541/jim20200031 CSTR: 32189.14.10.15541/jim20200031

所属专题: 结构陶瓷论文精选(2020)

• 研究快报 • 上一篇    下一篇

基于离心纺丝技术制备稳定的碳化锆纤维

陈博文1,2,3(),王敬晓1,2,姜佑霖1,2,3,周海军1,2,廖春景1,2,张翔宇1,2,阚艳梅1,2,倪德伟1,2(), 董绍明1,3   

  1. 1. 中国科学院 上海硅酸盐研究所 高性能和超微结构国家重点实验室, 上海 200050
    2. 中国科学院 上海硅酸盐研究所 结构陶瓷与复合材料工程研究中心, 上海 200050
    3. 中国科学院大学, 北京 100049
  • 收稿日期:2020-01-13 出版日期:2020-12-20 网络出版日期:2020-06-09
  • 作者简介:陈博文(1994–), 男, 博士研究生. E-mail: chenbowen@student.sic.ac.cn

Stable Zirconium Carbide Fibers Fabricated by Centrifugal Spinning Technique

CHEN Bowen1,2,3(),WANG Jingxiao1,2,JIANG Youlin1,2,3,ZHOU Haijun1,2,LIAO Chunjing1,2,ZHANG Xiangyu1,2,KAN Yanmei1,2,NI Dewei1,2(), DONG Shaoming1,3   

  1. 1. State Key Laboratory of High Performance Ceramics and Super?ne Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    2. Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    3. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2020-01-13 Published:2020-12-20 Online:2020-06-09
  • About author:CHEN Bowen(1994–), male, PhD candidate. E-mail: chenbowen@student.sic.ac.cn
  • Supported by:
    The National Key Research and Development Program of China(2016YFB0700202);National Natural Science Foundation of China(51702341);Chinese Academy of Sciences Innovative Funding(CXJJ-17-M169);The Key Deployment Project of Chinese Academy of Sciences(Y71YZ7171G);“CAS Pioneer Hundred Talents Program”

摘要:

本研究提出了一种利用离心纺丝技术制备稳定碳化锆(ZrC)纤维的有效方法。此方法使用醋酸锆和蔗糖作为锆源和碳源, 聚乙烯吡咯烷酮(PVP)作为纺丝助剂, 经过1600 ℃的裂解与碳热还原热处理后, 所纺原丝转化成由均匀纳米ZrC晶体组成的ZrC纤维。研究结果表明, 纤维中残留的少量碳可助力ZrC纤维在2000 ℃的超高温环境下仍保持较好的结构稳定性。

关键词: ZrC纤维, 离心纺丝, 超高温稳定性

Abstract:

In this work, an efficient approach was presented to produce stable zirconium carbide (ZrC) fibers by centrifugal spinning technique. Zirconium acetate and sucrose were used as the zirconium source and carbon source respectively. And polyvinyl pyrrolidone (PVP) was used as the spinning aid. After pyrolysis and carbothermal reduction at 1600 ℃, the as-spun green fibers can be converted to homogeneous ZrC fibers composed of uniform nano-sized ZrC crystals. Moreover, it is revealed that the as-fabricated ZrC fibers can sustain superior microstructure stability at an ultra-high temperature up to 2000 ℃, benefiting from a limited amount of residual carbon. The reaction mechanisms and the resulted ZrC fibers were also investigated.

Key words: zirconium carbide fiber, centrifugal spinning, ultra-high temperature stability

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