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Characterization of C─B─N Solid Solutions Deposited from a Gaseous Phase between 900° and 1050°C
Author(s) -
Saugnac Frédéric,
Teyssandier Francis,
Marchand André
Publication year - 1992
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.1151-2916.1992.tb05459.x
Subject(s) - nucleation , amorphous solid , materials science , chemical vapor deposition , chemical composition , phase (matter) , carbon fibers , boron , x ray photoelectron spectroscopy , characterization (materials science) , analytical chemistry (journal) , deposition (geology) , solid solution , chemical engineering , crystallography , chemistry , nanotechnology , composite number , organic chemistry , paleontology , sediment , engineering , metallurgy , composite material , biology
The composition, the structure, and some physical properties of boron–carbon–nitrogen solid solutions prepared by chemical vapor deposition (CVD) have been investigated. Both crystalline films and amorphous granular materials resulting respectively from heterogeneous and homogeneous nucleation were characterized by X‐ray diffraction, XPS, RBS, and TEM. The compositions of these single‐phase materials are gathered in two main domains located in the B/N > 1 part of the C─B─N composition diagram. It is stated that the carbon‐rich domain results from structural disorder of an ideal C 5 B 2 N composition. The thermal behavior of these films indicates that no mass loss can be detected after 1 h at 1700°C but a graphitization and a formation of small amounts of B 13 C 2 are observed. Density and preliminary electrical conductivity measurements were also performed.