أهلاً بك في موقعي الشخصي..
.. ..effect of Gd2O3 additives on the microstructure and  electrical properties of Pr2O3, Co2O3, Cr2O3 doped ZnO varistor.      Zinc Oxide (ZnO) varistors are semiconductor ceramics which...
....325Physics (Electronics): (3: 2+1) ..325Physics (Electronics): (3: 2+1)Introduction to semiconductors: Ionic, Covalent and Metallic bonding . semiconductors , Insulators and Metals ....