Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
4
From page
34
To page
37
Abstract
In this paper, semiempirical formulae for both bulk modulus (B in GPa) and shear modulus (G in GPa) of orthorhombic perovskite structured solids are elaborated in terms of volume (Vm) and product of ionic charges (ZaZbZc) of the bonding. Values of elastic moduli, of the group A+1B+2X3, (X=F. Cl, Br), A+2B+4O3 and A+3B+3O3 orthorhombic perovskites exhibit a linear relationship when plotted against the volume (Vm) normalization, but fall on different straight lines according to the product of ionic charges of the compounds. The resulting expressions can be applied to a broad selection of perovskite (ABX3=A: large cation with different valence, B: transition metal and X: oxides and halides) materials and their modulus predictions are in good agreement with the experimental data and those from ab initio calculations.
Journal title
Acta Tropica
Serial Year
2013
Journal title
Acta Tropica
Record number
1751167
Link To Document