Size-strain line-broadening analysis of the calcite-type borates ABO 3 (A=Fe, In, Ga)

Abstract

In this paper, the microstructure of metal borates grown by the solution-melt crystallization method was determined by X-ray diffraction broadening analysis. XRD measurements of the calcite-type borates were carried out using X-ray diffractometers SmartLab Rigaku and DRON-3 with Cu Kα radiation. The Williamson-Hall analysis and Debye-Sherrer method were used to study the individual contributions of crystallite sizes and strain on the peak broadening of FeBO 3 , InBO 3 and GaBO 3 . The crystallite sizes of the FeBO 3 and GaBO 3 calculated on the Williamson-Hall plots are in good agreement with the Scherrer method. We have also investigated the temperature dependence of crystallite size and strain in FeBO 3 . It was found that the temperature increased in the value of crystallite size and strain, indicating that the ordering of the crystal structure in iron borate with heat processing.