Quantitative Analysis of Anisotropic Shrinkage During Sintering of Cylindrical Nickel and Iron Compacts

Abstract

Shrinkage of nickel and iron compacts has been measured continuously during isothermal sintering at 1423K under a stream of Ar–7 vol.-%H₂. The results have been analysed to determine the quantitative agreement with phenomenological relationships given in the literature, with respect to both anisotropic and isotropic behaviour. These treatments are compared with the conventional treatment given in the literature. It is concluded that: (1) continuous measurement is necessary to follow shrinkage behaviour adequately; (2) quantitative description of the shrinkage is possible through suitable combination of several equations, each of which is applicable to a particular range of sintering. PM/0483