Mullite Fibers Prepared by Sol-Gel Method Using Aluminum Chloride Aluminum Isopropoxide and Tetraethylorthosilicate

被引：10

作者：

Zhang, Yabin ^{[1
]}

Ding, Yaping ^{[1
]}

Li, Yong ^{[1
]}

Gao, Jiqiang ^{[1
]}

Yang, Jianfeng ^{[1
]}

Guo, Litong ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[2] China Univ Min & Technol, Mat Sci & Engn Coll, Xuzhou, Peoples R China

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2011年 / 26卷 / 04期

关键词：

AlCl3 center dot 6H2O; Drying; Fiber; Mullite; Process; Reaction; Sintering; Sol-gel; MATRIX COMPOSITES; CERAMIC FIBERS; OXIDE; MATS;

D O I：

10.1080/10426910903124787

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mullite fibers with good flexibility were prepared from an aqueous water solution of aluminum chloride (AC), aluminum isopropoxide (AIP), tetraethylorthosilicate (TEOS) by the sol-gel process. Aluminosilicate spinnable sol (pH=2) with the stoichiometric mullite composition (Al:Si=3:1, AIP/AC=2:1) was prepared. The removal of organic and chlorine was completed at 800 degrees C. The complete transformation to mullite was observed at 1200 degrees C by X-ray diffraction (XRD). The lateral and circumferential cracks were showed in the results of scanning electron microscopy (SEM) when fibers were sintered at 10 degrees Cmin-1. It was useful for preparation of fibers with smooth surface and uniform diameter by controlling the sintering schedule.

引用

页码：649 / 653

页数：5

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