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The morphology and thermal stability of the Cu−Cu2S eutectic system

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Abstract

A study has been made of the morphology of unidirectionally solidified and as-cast Cu−Cu2S eutectic alloys. The growth morphology of the eutectic is rod-like, consisting of rods of Cu2S which are circular in cross-section in a copper matrix. Following solidification, the Cu2S rods neck down, pinch off, and spheroidize in a sequence which has previously been termed “ovulation”. The spheroids subsequently coarsen rapidly by a process which is controlled by the volume diffusion of sulfur in copper.

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Author notes

  1. D. Jaffrey

    Present address: Production Metallurgist with Hammersley Iron, Mt. Tom Price, Australia

Authors and Affiliations

  1. BHP Melbourne Research Laboratories, Melbourne, Australia

    S. Marich (Research Officer)

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  1. S. Marich
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  2. D. Jaffrey
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D. JAFFREY. formerly with BHP Melbourne Research Laboratories

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Marich, S., Jaffrey, D. The morphology and thermal stability of the Cu−Cu2S eutectic system. Metall Trans 2, 2681–2689 (1971). https://doi.org/10.1007/BF02814912

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  • DOI: https://doi.org/10.1007/BF02814912

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