The Fe-Ni distribution between pentlandite and monosulfide solid solution equalized at low temperature

Authors
Drebushchak, VA Kravchenko, TA
Citation
Va. Drebushchak et Ta. Kravchenko, The Fe-Ni distribution between pentlandite and monosulfide solid solution equalized at low temperature, J THERM ANA, 56(2), 1999, pp. 925-929
Citations number
8
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
56
Issue
2
Year of publication
1999
Pages
925 - 929
Database
ISI
SICI code
1388-6150(1999)56:2<925:TFDBPA>2.0.ZU;2-2
Abstract
Two mixtures of pentlandite and the monosulfide solid solution (mss) have b een synthesized. The bulk compositions of the samples are Fe6Ni3S8 and Fe3N i6S8. Differential scanning calorimetry detected exothermic process in the samples under heating. The process takes place in temperature range between phase transition in the mss (near 400 K) and 690 K and is governed by diff usion. X-ray powder diffraction has showed that equilibrium Fe-Ni distribution bet ween pentlandite and the mss is achieved after short-time heating up to 670 K.