Analysis of Elastic constants and Lattice Parameters of Fe2B from X-Ray Diffraction Technique

Elastic constants like Bulk modulus, Shear modulus and magnetic moment were calculated theoretically using the Birch–Murnaghan equations of state fitted into the equation of state. This data was compared with the experimental data Published by Chen B, Penwell D, Nguyen J H and Kruger M B 2004 Solid State Commun. The experimental data used for comparison was studied by using Energy dispersive X-Ray diffraction technique, keeping the temperature constant. It is found that no phase transformation has taken place in this study of pressure change from 0 to 50 GPa. Lattice parameters were calculated using the already available data of D spacings .We noticed that the there is only a small variation in the pressure derivative of the bulk modulus, lattice parameters and the magnetic moments values. However the Young’s modulus and shear modulus are as published by B Xiao et al, A comparative study of Cr7C3, Fe3C and Fe2B in cast iron both from ab initio calculations and experiment. The variation found in the bulk modulus is only due to the inconsistent pressure values in the experiment. Keywords— Iron Boride, Elastic constants, lattice parameters, high pressure, Theoretical analysis.