Preparation and fine thermal insulation performance of Gd2Zr2O7/ZrO2 composite fibers

被引：11
|
作者：
Chen, Jingwei [1 ,2 ,3 ]
Wang, Xinqiang [1 ,2 ]
Xie, Yongshuai [1 ,2 ]
Shi, Shuying [1 ,2 ]
Zhang, Guanghui [1 ,2 ]
Zhu, Luyi [1 ,2 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China
[3] Shandong Univ Technol, Sch Phys & Optoelect Engn, Zibo 255000, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2020年 / 46卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Zirconate; Composite fibers; Electro-spinning; Thermal-physical properties; Thermal insulation; THERMOPHYSICAL PROPERTIES; MECHANICAL-PROPERTIES; CONDUCTIVITY; NANOCRYSTALS; A(2)B(2)O(7); SPECTROSCOPY; PYROCHLORE; YB2O3;
D O I：
10.1016/j.ceramint.2019.09.133
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Gd2Zr2O7/ZrO2 (GZC) composite fibers were prepared by electro-spinning method. The XRD, XPS and Raman results showed that there were three crystalline phases, tetragonal phase ZrO2, cubic phase ZrO2 and defect fluorite phase Gd2Zr2O7 in GZC composite fibers. GZC fibers remained an intact fiber texture up to 1400 degrees C according to SEM photographs. The thermal conductivity of GZC fibers was between 0.173 W/(m-K) at 400 degrees C and 0.309 W/(m-K) at 800 degrees C, which was lower than that of 7YSZ under the same experimental conditions. The fiber sheet with density about 3.5 g/cm(3) has thermal shrinkage less than 3% at 1400 degrees C. Hence, GZC fibers could be used as refractories for heat protection.
引用
收藏
页码：1615 / 1620
页数：6
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