Alkaline earth yttrium borates: synthesis, characterization and calculation of unit cell parameters

Abstract

Purpose: Purpose of this paper, our object is solid state synthesis and investigation of structural and chemical characterization properties of Ba 3 Y(BO 3 ) 3 and Sr 3 Y 2 (BO 3 ) 4 as members of alkaline earth yttrium borates. Design/methodology/approach: In the synthesis procedure; barium carbonate, strontium carbonate, yttrium oxide and boric acid weighed an appropriate molar ratio and homogenized in an agate mortar. The mixture placed into a porcelain crucible to heat in high temperature oven at 900°C for 4 hours. After intermediate grindings, samples were cooled down to room temperature. Homogenized powders were characterized by Powder X-ray Diffractometer (XRD) to determine crystal structures. FTIR spectrum was taken to support the functional groups. Morphological properties and semi-quantitative analyse of the sample was performed by Scanning Electron Microscope/Energy dispersive (SEM/EDX). Findings: The XRD patterns of Ba 3 Y(BO 3 ) 3 and Sr 3 Y 2 (BO 3 ) 4 compounds indicate that crystallization procedure were completed successfully. The unit cell parameters of the compounds was calculated by Rietveld refinement method. In FTIR spectrum the vibrations of B-O bonds are determined via comparison to literature Research limitations/implications: Implication the synthesis method has some disadvantages such as low homogeneity, non-uniform product etc. We tried to minimize these negative aspects in our research and succeeded.