Studies on Slip Casting Control III Relationship between the Plasticity and the Fundamental Parameters of Whiteware Bodies

• Published in: Journal of the Ceramic Association, Japan Vol. 80; no. 923; pp. 259 - 262
• Main Author: WATANABE, Nobuhiko
• Format: Journal Article
• Language: Japanese
• Published: The Ceramic Society of Japan 01.07.1972
• ISSN: 0009-0255; 1884-2127
• DOI: 10.2109/jcersj1950.80.923_259

Investigating the relationship between the plasticity and the fundamental parameters, F3, Sa and ds, the following results were obtained. 1) Relationship between modulus of rupture st and maximum deformation D of wet bodies was expressed by the equation: D=Jf(st) J was plasticity index, and f(st), determined by measurement for a typical body, was the term changed with wet strength. When maximum deformation and strength of bodies were known, plasticity index could be calculated from the equation. 2) From the above equation and the already reported equation for wet strength, [maximum deformation-moisture content] curve could be calculated. When the fundamental parameters, the wet strength coefficient, and plasticity index of the body were known, strength and maximum deformation at the moisture content of shaping operations could be estimated. 3) The plasticity index was not only functions of the fundamental parameters, but also affected by higher order factors, such as shape of particles and homogeneity of cast pieces.