Abstract

A comparative analysis of the thermal and magnetic properties of synthesized samples of troilite (FeS) and hexagonal (Fe0.94S) and monoclinic (Fe0.875S) pyrrhotites was performed by X-ray diffraction, combined thermogravimetric analysis and calorimetry, and thermomagnetic measurements. The pyrrhotite composition affects the temperatures and heats of phase transitions of the samples during heating and cooling in the range of 300–670 K. The temperature and the magnetic field strength determine the magnetization of pyrrhotites. Higher magnetization is inherent in monoclinic pyrrhotite, while troilite has lower magnetization.

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