Abstract
The partial and total DOS of the ternary compound TiCxN1-x were calculated in the framework of the coherent potential and virtual crystal approximations for concentrations x=0.0, 0.2, 0.4, 0.6, 0.8 and 1.0. The K and L emission spectra of carbon and titanium were calculated and found to compare favourably with experiment in the case of the CPA. The calculated Fermi energy EF and the DOS at EF do not differ appreciably in the two schemes.