Abstract

The sintering kinetics of SmCo 5 have been investigated as functions of stoichiometry, time and temperature. The shrinkage or densification kinetics are not affected by changes in stoichiometry; therefore no correlation exists between densification kinetics and subsequent magnetic properties. The data obtained in this study indicate that more than one atomic transport process is operative during the sintering process. Because of this complication, the sintering mechanisms can be only tentatively identified without an assessment of their individual magnitudes. We speculate that the atomic transport processes responsible for sintering of SmCo 5 are grain-boundary diffusion and surface diffusion.

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