期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 24, 期 6, 页码 1371-1374出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0955-2219(03)00520-X
关键词
composition-structure relationships; fuel cells; nanocomposites; sol-gel process; YSZ
Pure nanocrystalline cubic yttria-stabilized zirconia (YSZ) samples have been produced at temperatures as low as 800 degreesC by annealing in air hybrid free-standing sol-gel-derived films. The addition of polyvinylpyrrolidone (PVP) to the sol allows the preparation of crack free gel films. By casting the sol onto a mercury surface, films with thickneses in the range 80-100 mum were obtained. The thermal evolution of hybrid PVP-YSZ xerogels has been followed using FTIR spectroscopy, thermogravimetric analysis, X-ray diffraction and scanning electron microscopy. The influence of the polymer addition on final ceramic structure and microstructure has been studied by changing the polymer content. The matrix effect of PVP in controlling crystallite sizes has been found and related to the thermal degradation of the polymer. (C) 2003 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据