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Preparation and Properties of Uniform Coated Colloidal Particles: VII. Hafnium Oxide on Indium Oxide

✍ Scribed by Keita Yura; Egon Matijević

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
624 KB
Volume
155
Category
Article
ISSN
0021-9797

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✦ Synopsis

A coating procedure using preformed indium (hydrous) oxide particles dispersed in aqueous solutions of hafnium oxychloride in the presence of sulfate ions is described. The concentration of the latter controls the thickness of the hafnium (hydrous) oxide shell produced. Above a certain concentration of (\mathrm{Na}{2} \mathrm{SO}{4}) a mixed dispersion is obtained. On calcination at (800^{\circ} \mathrm{C}) the core and the coating of the composite particles are converted to the corresponding oxides. 1993 Academic Press, Inc.

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