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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 57, Number 6
JKCSEZ 57(6)
December 20, 2013 

 
Title
Elastic and Electronic Properties of Point Defects in Titanium Carbide
Author
Dae Bok Kang*
Keywords
Electronic structure, Titanium carbide, Defects
Abstract
A theoretical study of the electronic structures of TiC1-x and Ti1-xWxC (x = 0, 0.25) is presented. The density of states and crystal orbital overlap population calculations were used to interpret variations of elastic properties induced by carbon vacancies and alloying substitutions. Our results show why the introduction of vacancies into TiC reduces bulk moduli, while W substitution at a Ti site increases the elastic modulus. The effect of the point defects on the bonding in TiC is investigated by means of extended Huckel tight-binding band calculations.
Page
677 - 683
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