Conclusions
When the sintering of a mixture of tungsten and rhenium powders is accompanied by intense diffusional interaction between the components, the composition dependence of shrinkage has a minimum. An x-ray investigation has shown that use of a fine tungsten powder intensifies the formation of tungsten-rich alloys. The reason why the composition dependence of shrinkage has a minimum with a fine powder and is monotonic with a coarse one is that diffusional interaction is more vigorous in the former case, and this apparently promotes the manifestation of shrinkage inhibition due to Frenkel's effect.
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Translated from Poroshkovaya Metallurgiya, No. 6(234), pp. 31–35, June, 1982.
The authors wish to thank Professor V. V. Skorokhod for helpful advice and discussion.
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Solonin, S.M., Kivalo, L.I. Sintering of mixtures of tungsten and rhenium powders. Powder Metall Met Ceram 21, 451–453 (1982). https://doi.org/10.1007/BF00801753
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DOI: https://doi.org/10.1007/BF00801753