Formation of Glass and Amorphous Oxide Fibers from Solution

MRS Online Proceedings Library volume 32, Article number: 91 (1984) Cite this article

Abstract

A review has been made of our works on two types of sol-gel methods for obtaining oxide fibers through low temperature process: (1) the alkoxide method and (2) the freezing-of-gel method. In the alkoxide method, metal alkoxides in an alcoholic solution are hydrolyzed and poly-condensed into chain-like polymers, drawn into gel fibers near room temperature and heated to several hundred °C. Various problems encountered in the process are discussed with SiO2-based fibers. In the freezing-of-gel method, a hydrogel is unidirectionally frozen by lowering the gel cylinder into a cold bath. Thawing of unidirectionally grown ice crystals leaves a bundle of hydroxide fibers. Factors affecting the formation of fibers are discussed with titanium and zirconium hydroxide fibers as examples.

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  1. Institute for Chemical Research, Kyoto University, Uji, Kyoto-Fu, 611, Japan

    Sumio Sakka

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  1. Sumio Sakka
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Correspondence to Sumio Sakka.

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Sakka, S. Formation of Glass and Amorphous Oxide Fibers from Solution. MRS Online Proceedings Library 32, 91 (1984). https://doi.org/10.1557/PROC-32-91

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