Studies in Lithium Oxide Systems: VII, Li2O–B2O2–SiO2 |
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| Authors: | B. S. R. SASTRY F. A. HUMMEL |
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| Affiliation: | College of Mineral Industries, The Pennsylvania State University, University Park, Pennsylvania |
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| Abstract: | Phase relations in the system Li2O–B2O3–SiO2 were studied by quenching and solid-state reactions. No ternary compounds were detected in the portion of the system containing less than 53% Li2O. Compatibility triangles were formed from the binary borate and silicate compounds. Liquidus data obtained by quenching are reported for four joins, Li2O·2SiO2–Li2O·2B2O3, Li2O·SiO2-Li2O·2B2O3, Li2O·SiO2-Li2O·B2O3, and Li2O·2B2O3-SiO2. The last join cuts across the two-liquid region and is not a true binary system. Some probable ternary invariant points were located in the portion of the system which was quenchable to glass and adjacent to the two-liquid region. Further data on the previously reported immiscible liquid formation are given and the significance is discussed. Data on the thermal expansion behavior of certain glasses are presented. |
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