المقالات العلمية

EVALUATION OF PROPERTIES OF NON-STOICHOMETRIC ALUMINA MAGNESIA SPINEL USING THIOUREA AS FUEL BY VARYING SOAKING TIME

… hat the average crystal size of spinel particles was about 48 nm, 36 nm, and 47 nm respectively. Finally, hardness of spinel was evaluated by Vicker Hardness test and evaluated to be10.52GPa (1073 HV), 4.087GPa (416.7HV) and 5.079 GPa (517.9HV).