The phase system Fe-Ni-S at 900 degree C.

Sven Karup-Møller, E. Makovicky

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    At 900 degrees C the dry condensed system Fe-Ni-S contains two sulfides (mss and NiS2), a sulfide melt and Fe-Ni alloys gamma and alpha. The mss recedes from S-poor compositions for all mixed (Ni,Fe)(l-x)S compositions. The field of sulfide melt has been newly delineated in this study by microprobe analyses on 32 binary runs. There are two important three-phase associations in the system: mss Fe48.6Ni1.1S50.3 - gamma Fe65.0Ni35.0 - melt similar to Fe42.0Ni15.0S43.0 and vaesite Ni0.91Fe0.09S2 - mss Ni0.54Fe0.33S - S Partition coefficient D-Ni (mss/melt) was determined to be equal to (at.% Ni(mss)(0.663)/13.393. The present results are compared with those of KULLERUD et al. (1969) and FYODOROVA & SINYAKOVA (1993).
    Original languageEnglish
    JournalNeues Jahrbuch fuer Mineralogie. Monatshefte
    Pages (from-to)373-384
    Publication statusPublished - 1998


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