On the compressibility of the transition-metal carbides and nitrides alloys ZrxNb1-xC and ZrxNb1-xN

Vassiliki Katsika-Tsigourakoua)

Section of Solid State Physics, Department of Physics, National and Kapodistrian
University of Athens, Panepistimiopolis, 157 84 Zografos, Greece

Abstract 

The 4d-transition-metals carbides (ZrC, NbC) and nitrides (ZrN, NbN) in the rocksalt structure, as well as their ternary alloys, have been recently studied by means of a firstprinciples full potential linearized augmented plane waves method within the local density approximation. These materials are important because of their interesting mechanical and physical properties, which make them suitable for many technological applications. Here, by using a simple theoretical model, we estimate the bulk moduli of their ternary alloys ZrxNb1-xC and ZrxNb1-xN in terms of the bulk moduli of the end members alone. The results are comparable to those deduced from the first-principles calculations.

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https://arxiv.org/ftp/arxiv/papers/1704/1704.07587.pdf