9C. Z. REN, T. Y. WANG. Expermental research on the residual stress in the surface of silicon nitride ceramic balls. Journal of Materials Processing Technology , 2002,129:446-450.
10C.Z. REN, T.Y. WANG..Experimental research on the residual stress in the surface of silicon nitride ceramic balls. Journal of Materials Processing Technology, 2002,129:446-450