1. Bocchini, G. F., “Influence of process parameters on precision of PM parts,” Powder Metallurgy, Vol. 28, No. 3, pp. 155–165, 1985.
2. German, R. M., “Powder Metallurgy of Iron and Steel,” John Wiley & Sons Inc., pp. 205–209, 1998.
3. Marcu Puscas, T., Signorini, M., Molinari, A., and Straffelini, G., “Image analysis investigation of the effect of the process variables on the porosity of sintered chromium steels,” Materials Characterization, Vol. 50, No. 1, pp. 1–10, 2003.
4. Molinari, A. and Stoyanova, V., “Vacuum sintering and sinterhardening of Mo and Ni low alloyed steels,” Powder Metallurgy Progress, Vol. 4, No. 2, pp. 79–87, 2004.
5. Metal Powder Industries Federation;J Tengzelius,1990