Elastic study of Potassium Sulphamate crystal using ultrasonic Pulse Echo Overlap technique

摘要

Elastic properties of Potassium Sulphamate single crystal with chemical formula, KNH2SO3 are studied by ultrasonic Pulse Echo Overlap (PEO) technique. It crystallizes in the orthorhombic symmetry with space group Pbcm The study involves measuring ultrasonic velocity in the crystal in certain specified crystallographic directions; all the nine elastic stiffness constants, compliance constants and Poisson's ratios are evaluated. The polar plots in a-b, a-c and b-c planes of Phase velocity, Slowness, Young's modulus and Linear compressibility reveal the anisotropy in elastic properties.