Abstract
The glass formation in the quaternary TeO2-B2O3-MnO-Fe2O3 system and in its ternary systems was investigated. A range of liquid immiscible phases, located near to the binary TeO2-B2O3 and B2O3-MnO systems was established. Using transmission electron microscopy, a trend to metastable liquid-phase separation in the single-phase glasses, located near to the boundary of immiscibility was observed. With an increase in the Fe2O3 and MnO content still in the process of cooling of the melts, it was possible for a fine glassy crystalline structure to be formed in them. It was shown that by changing the upper limit of the melting temperature and the cooling rate, the glassy crystalline structure and the Fe3O4 content could be modified.
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Dimitriev, Y., Kashchieva, E., Ivanova, Y. et al. Glass formation and immiscibility in the TeO2-B2O3-Fe2O3-MnO system. J Mater Sci 21, 3033–3037 (1986). https://doi.org/10.1007/BF00553333
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DOI: https://doi.org/10.1007/BF00553333