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Minería y Geología
versão On-line ISSN 1993-8012
Resumo
PONS-HERRERA, José Alberto et al. Thermal and mineralogical performance of serpentinized dunites of Moa-Baracoa region under temperatures up to 1 600 ºC. Min. Geol. [online]. 2019, vol.35, n.2, pp. 183-195. ISSN 1993-8012.
The purpose of this study is to determine the phase transformation and thermal performance of the serpentinized dunites of Moa-Baracoa region subjected to temperatures between 1 200 °C and 1 600 °C. To fulfill this purpose X-ray diffraction analysis and thermal analysis (gravimetric and differential) were carried out. Heating the dunites at such temperatures produced a stabilization of the forsterite and periclase phases, which gives important refractory properties to this material which support using this raw material in the metallurgical foundry processes.
Palavras-chave : serpentinized dunites; phase transformations; antigorite; forsterite; thermal decomposition; melting.