T. Nishimura et al., FORMING OF CERAMIC POWDERS BY CYCLIC-CIP - QUANTITATIVE-EVALUATION OFDENSIFICATION BEHAVIOR, Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 101(9), 1993, pp. 985-990
A new quasi-quantitative constitutive equation of Cyclic-CIP, which co
ntains maximum pressure, bias pressure and number of cycles as variabl
es, was derived. Densification of powder was expressed as a function o
f maximum pressure assuming that densification rate decreases as the m
aximum pressure increased. Effect of number of cycles on densification
was expressed assuming that densification rate decreases as the numbe
r of cycles increased. Effect of the bias pressure was derived from th
e experimental data as a linear function of the ratio of the bias pres
sure to the maximum pressure. As a result of analysis of experimental
data for two kinds of alumina with this equation, their densification
behavior was found to be better characterized by the equation.