Effects of a low amount of C on the phase transformations in the AlN-Al2O3pseudo-binary system

Authors
Tabary, P Servant, C Alary, JA
Citation
P. Tabary et al., Effects of a low amount of C on the phase transformations in the AlN-Al2O3pseudo-binary system, J EUR CERAM, 20(12), 2000, pp. 1915-1921
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN journal
09552219 → ACNP
Volume
20
Issue
12
Year of publication
2000
Pages
1915 - 1921
Database
ISI
SICI code
0955-2219(200011)20:12<1915:EOALAO>2.0.ZU;2-C
Abstract
The effects of a low amount of C on the phase transformations in the AlN-Al 2O3 pseudo-binary system are reported in samples having an AlN content in m ol% ranging between 44 and about 0. Various complementary experimental tech niques were used to determine the nature of the phase equilibria. Carbon is embedded in the components of three eutectics as a function of the average chemical composition of the sample in AlN. In two of them, a component bel onging to the quaternary system Al-O-N-C and having a wide composition rang e was found. Its X-ray and neutron diffraction spectra are well refined wit h a hexagonal crystalline structure. (C) 2000 Elsevier Science Ltd. All rig hts reserved.