Temperature dependence of elastic moduli of Mn-Zn ferrites in Mn-rich region at saturation magnetic fields

Temperature dependence of Young's modulus (E) and shear modulus (G) of polycrystalline Mn-Zn ferrite system in Mn-rich region has been studied in the temperature range 300-650 K at saturation magnetic fields using the resonant piezoelectric oscillator technique. It is found that the elastic behaviour of this system follows Wachtman's relation. However, the shear modulus does not follow a linear relationship as found in oxide minerals, including other ferrites.