كمال محمود عفيصه; محمد ياسين صبيح; شوكت شاهين شاهين. A Study on Structural, Mechanical, Speed and Frequency Properties of the Ultrasonic Generated by the Compression Component {\mathbf{Co}}_\mathbf{x}{\mathbf{Ni}}_{\mathbf{1}-\mathbf{x}}{\mathbf{Fe}}_\mathbf{2}\mathbf{O}_\mathbf{4} at Ratios X = (0.0, 1.0). TUJ-BA 2020, 42.