| Autor: | N. U. Venskovskii, S. Yu. Stefanovich, A. Yu. Khortova, G. M. Kaleva, V. V. Aleksandrovskii, S. G. Prutchenko, E. D. Politova, L. A. Rudnitskii |
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| Rok vydání: | 2001 |
| Předmět: |
Chemistry
Crystal chemistry General Chemical Engineering Inorganic chemistry Metals and Alloys Analytical chemistry Sintering Microstructure Thermal expansion Boron trioxide Inorganic Chemistry chemistry.chemical_compound Phase (matter) Materials Chemistry Chemical composition Perovskite (structure) |
| Zdroj: | Inorganic Materials. 37:641-646 |
| ISSN: | 0020-1685 |
| DOI: | 10.1023/a:1017580703909 |
| Popis: | Data are presented on the phase relations in the La2O3–SrO–Ga2O3system and the effect of B2O3additions on the structure and morphology of (La,Sr)(Ga,Mg)O3 – δceramics. The formation of the perovskite phase (La,Sr)GaO3is shown to proceed through La4SrO7and La2SrO4 + δ . The unit-cell of (La,Sr)(Ga,Mg)O3 – δis found to vary linearly with Sr + Mg content. The introduction of boron-containing additions reduces the sintering temperature of the ceramics by up to ≃200°C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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