The effect of acid mixture on the structure of sol-gel PZT fibers

被引：10
|
作者：
Zhang, M [1 ]
Salvado, IMM [1 ]
Vilarinho, PM [1 ]
机构：
[1] Univ Aveiro, CICECO, Dept Ceram & Glass Engn, P-3810193 Aveiro, Portugal
来源：
MATERIALS LETTERS | 2003年 / 57卷 / 26-27期
关键词：
PZT; fiber technology; sol-gel preparation; acidification; acetic acid; methacrylic acid;
D O I：
10.1016/S0167-577X(03)00302-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Author's previous studies [J. Am. Ceram. Soc., in press] showed that the acidification of the precursor solution controls the strength and length of sol-gel PZT fibers. Two acids, acetic acid (CH3COOH) and methacrylic acid (C4H6O2), were studied. C4H6O2 produced longer fibers with small cracks, while CH3COOH produced shorter and denser fibers. In order to take advantage of the opposite effect of each of these acids, mixtures of acetic and methacrylic acid are used in this work to obtain longer and dense fibers. The effect of the ratio of CH3COOH/C4H6O2 mixture on the precursors' chemical structure, crystalline phase formation and microstructure of PZT fibers is investigated and discussed. Long and almost crack-free PZT fibers are obtained for a 1/2 ratio of CH3COOH/C4H6O2. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：4271 / 4275
页数：5
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