A Theoretical Analysis of the Formation of Nonstoichiometric Defects in Hexagonal Boron Nitride

A Theoretical Analysis of the Formation of Nonstoichiometric Defects in Hexagonal Boron Nitride Results of a theoretical analysis of the Schottky and anti-Frenkel defect formation in α-BN carried out within the framework of an ionic model and quasi-chemical approximation are presented. Equations for describing of the α-BN point defect formation as a function of the partial nitrogen pressure and temperature under different conditions of electrical neutrality are derived and solutions thereof are given. The equations derived allow prediction of any type of α-BN defects in any range of the partial nitrogen pressure and temperature. It is suggested that nitrogen vacancies constitute the predominant type of nonstoichiometric point defect in α-BN. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

A Theoretical Analysis of the Formation of Nonstoichiometric Defects in Hexagonal Boron Nitride

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by Plenum Publishing Corporation
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1023/A:1011384129992
Publisher site
See Article on Publisher Site

Abstract

Results of a theoretical analysis of the Schottky and anti-Frenkel defect formation in α-BN carried out within the framework of an ionic model and quasi-chemical approximation are presented. Equations for describing of the α-BN point defect formation as a function of the partial nitrogen pressure and temperature under different conditions of electrical neutrality are derived and solutions thereof are given. The equations derived allow prediction of any type of α-BN defects in any range of the partial nitrogen pressure and temperature. It is suggested that nitrogen vacancies constitute the predominant type of nonstoichiometric point defect in α-BN.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Oct 9, 2004

References

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