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Preparation of TiO 2 ‐Coated Al 2 O 3 Particles by Chemical Vapor Deposition in a Rotary Reactor
Author(s) -
Li Chunzhong,
Han Jinyi,
Zhang Zongtao,
Gu Hongchen
Publication year - 1999
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.1151-2916.1999.tb02038.x
Subject(s) - anatase , chemical vapor deposition , materials science , coating , chemical engineering , amorphous solid , deposition (geology) , chemical reaction , analytical chemistry (journal) , nanotechnology , chemistry , catalysis , photocatalysis , organic chemistry , paleontology , sediment , engineering , biology
A process of coating Al 2 O 3 particles with TiO 2 by hydrolysis of Ti(OC 4 H 9 ) 4 using chemical vapor deposition in a rotary reactor has been developed. The process resulted in (1) a coating film of TiO 2 which was compact and uniform with the fraction of TiO 2 being 0.1%–10.0% and (2) an amorphous TiO 2 coating at a low reaction temperature converted to anatase at a reaction temperature higher than 673 K.