D. Ravinder et T. Alivelumanga, COMPOSITION DEPENDENCE OF ELASTIC BEHAVIOR OF MIXED MANGANESE-ZINC FERRITES, Materials letters, 37(1-2), 1998, pp. 51-56
Mixed Mn-Zn ferrites are prepared by the double sintering ceramic meth
od. The ultrasonic compressional velocity (V-l) and shear velocity (V-
s) in these ferrites are measured at room temperature by the ultrasoni
c pulse transmission technique. The elastic moduli of the specimens ar
e computed and corrected to zero porosity. The variation of the elasti
c moduli with composition is interpreted in terms of binding forces be
tween the atoms of the spinel lattice. The lattice parameters of the s
pecimens are evaluated from the X-ray diffraction studies. The linear
variation of these parameters with composition has been explained on t
he basis of the tetrahedral ionic radius. (C) 1998 Elsevier Science B.
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