Preparation and investgation of microstructural properties of $\mathrm{Pb_xSn_{1-x}Te}$ bulk alloys

Seidi Hassan ; V. F. Gremenok ; V. A. Ivanov

Problemy fiziki, matematiki i tehniki, no. 4 (2013), pp. 28-31.

Résumé

The aim of this work is the preparation and characterization of the polycrystalline $\mathrm{Pb_xSn_{1-x}Te}$ bulk alloys, which isgrown by synthesis via a reaction of $\mathrm{Pb}$, $\mathrm{Sn}$, $\mathrm{Te}$ elements in sealed quartz ampoules. The elemental composition of the obtained samples was determined from energy dispersive X-ray (EDX). The structural characterization was investigated by X-ray diffraction (XRD). The powder of X-ray diffraction of the alloys showed a single phase only, which was found to be cubic. The lattice parameter $a$ is calculated from the peak positions of X-ray diffraction data. The dependence of the lattice constant on composition X exhibits a linear behavior and may be described by the Vegard’s law.

Détail

Keywords: lead tin telluride, energy dispersive X-ray, lattice parameter.
Mots-clés : X-ray diffraction, microstructure

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