1965•Mineralogical Magazine and Journal of the Mineralogical SocietyRequires access

Oriented transformation of manganite during heat treatment

D. R. Dasgupta

Abstract

Summary The transformation of manganite during heating has been studied by single crystal X-ray diffraction methods. It is observed that manganite transforms into pyrolusite keeping its original axial directions parallel to those of the transformed phase. Pyrolusite then transforms into Mn2O3 with its [001] ‖ [110] or [100] of Mn2O3; of Mn2O3 and [010] ‖ [001] of Mn2O3. Evidence of an intermediate product in the pyrolusite → Mn2O3 reaction has been found.

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Key concepts: Pyrolusite, Manganite, Materials science, Manganese, Phase (matter), Crystallography, Chemistry, Metallurgy