Premium
Thermal Stability of a Chemically Vapor Deposited Multilayer Coating Containing Amorphous Silica and Rutile Titania on Hi‐Nicalon Fiber
Author(s) -
Lee Jinil,
Li Hao,
Lee Woo Y.
Publication year - 2003
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.1151-2916.2003.tb03558.x
Subject(s) - materials science , chemical vapor deposition , amorphous solid , crystallization , rutile , coating , thermal stability , chemical engineering , composite material , amorphous silica , fiber , mineralogy , crystallography , nanotechnology , chemistry , engineering
A multilayer coating consisting of consecutive layers of amorphous‐silica, rutile‐titania, and amorphous‐silica was prepared on Hi‐Nicalon fiber by chemical vapor deposition at 1050°C. It appeared that the silica and titania layers were strongly bonded to each other with no evidence of detachment and crack deflection at the interface region. The layered structure became morphologically unstable because of the growth of titania grains, the crystallization of the silica layers, and the oxidation of the fiber on exposure to 1200°C in air for 92 h.