Fabrication of La₂Zr₂O₇ ceramic fibers via electrospinning method using different La₂O₃ precursors

详细信息    查看全文

• 作者：Kangkang Yuan ^{yuankk@163.com" class="auth_mail" title="E-mail the corresponding author} ; Cong Feng ; Xinzhu Gan ; Zhichao Yu ; Xinqiang Wang ; ^{xqwang@sdu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Luyi Zhu ; Guanghui Zhang ; Dong Xu
• 关键词：La2Zr2O7 fiber ; Electrospinning ; LaCl3· ; 7H2O ; La(NO3)3· ; 6H2O ; La(CH3COO)3· ; 4H2O
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：15 November 2016
• 年：2016
• 卷：42
• 期：15
• 页码：16633-16639
• 全文大小：1981 K

文摘

Despite La₂Zr₂O₇ ceramic fiber has been fabricated by electrospinning method, the effects of thermal pyrolysis process on the microstructures and properties of the fibers have seldom been considered. Three La₂O₃ precursors were used to prepare La₂Zr₂O₇ ceramic fibers. Phase transformation of La₂Zr₂O₇ ceramic fibers were characterized by XRD and Raman spectra. The influence of the decomposition process on the microstructure of the fibers was studied by TG/DSC, XPS and SEM. The results show that slow weight loss leads to smaller grain size which could obtain higher strength fibers while fast weight loss could develop pores which are benefit to the decrease of the thermal conductivity.