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Tin(IV) Oxide Coating of Aluminum Borate Whiskers and Alumina Particles by Chemical Vapor Deposition
Author(s) -
Tsugeki Keiichi,
Yoshikawa Tomohisa,
Maeda Hideaki,
Kusakabe Katsuki,
Morooka Shigeharu
Publication year - 1993
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1993.tb06609.x
Subject(s) - whisker , whiskers , materials science , monocrystalline whisker , coating , chemical vapor deposition , layer (electronics) , aluminium , boron , tin , chemical engineering , tin oxide , composite material , oxide , metallurgy , nanotechnology , chemistry , organic chemistry , engineering
Aluminum borate whiskers of 0.5–1.0 μ diameter and alumina particles of 10–20 μ diameter were coated with SnO 2 by the reaction of SnCl 4 –H 2 O–N 2 gas mixtures in a rotary kiln reactor. Prior to coating, the whiskers were slightly etched to ensure adhesion between the SnO 2 layer and the whisker surface. The whiskers were coated at 100°C for 1 h, and then at 300°C for 2 h. This procedure was effective for covering the entire whisker surface with a uniform SnO 2 layer. Precoating was not necessary for the alumina particles. A compressed disk of the coated whiskers had an electrical conductivity of 30–40 S/m.