PREPARATION OF SPHERICAL, SUBMICROMETER OXIDE PARTICLES BY HYDROLYSISOF EMULSIFIED ALKOXIDE DROPLETS

Authors
HARDY AB RHINE WE BOWEN HK
Citation
Ab. Hardy et al., PREPARATION OF SPHERICAL, SUBMICROMETER OXIDE PARTICLES BY HYDROLYSISOF EMULSIFIED ALKOXIDE DROPLETS, Journal of the American Ceramic Society, 76(1), 1993, pp. 97-104
Citations number
39
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
76
Issue
1
Year of publication
1993
Pages
97 - 104
Database
ISI
SICI code
0002-7820(1993)76:1<97:POSSOP>2.0.ZU;2-N
Abstract
A new method for forming spherical, submicrometer ceramic oxide partic les by the hydrolysis of emulsified alkoxide droplets is reported. Emu lsions are formed of alkoxide droplets dispersed in an inert, polar so lvent. The alkoxide droplets are hydrolyzed to form oxide particles by adding water to the emulsion. It was shown that individual droplets a cted as ''microreactors'' and controlled the powder size, shape, and c omposition. Both single-oxide and mixed-oxide powders were formed by t his technique.