Elastic, mechanical, thermo-physical, and ultrasonic investigation in platinum carbide

Abstract

A comprehensive study of elastic, mechanical, thermophysical and ultrasonic properties of novel platinum carbide (PtC) have been reported. The elastic constants, mechanical properties e.g. bulk modulus, shear modulus, Young’s modulus etc., direction dependent thermal and ultrasonic properties of PtC in rock-salt (RS-type) and wurtzite (WZ-type) structures are determined. Thermal properties e.g. thermal relaxation time, lattice thermal conductivity, specific heat per unit volume, crystal energy density, acoustic coupling constants, and ultrasonic attenuation were determined along different directions. In order to access the microstructural information and nature of material the direction dependent ultrasonic properties of PtC were correlated with other thermophysical properties. The elastic, mechanical, thermophysical and ultrasonic properties of wurtzite crystal structure have been reported for first time. All results reveal that PtC would favour wurtzite crystal phase. The compound is stiffer in wurtzite phase. The obtained results may be further explored for research and industrial applications.