Phase composition, microstructure, and thermal expansion of B2O3-modified LaGaO3-based ceramicsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Data are presented on the phase relations in the La2O3-SrO-Ga2O3 system and the effect of B2O3 additions on the structure and morphology of(La,Sr)(Ga,Mg)O3-delta ceramics. The formation of the perovskite phase (La,Sr)GaO3 is shown to proceed through La4SrO7 and La2SrO4+delta. The unit-cell of (La,Sr)(Ga,Mg)O3-delta a is found to vary linearly with Sr + Mg content. The introduction of boron-containing additions reduces the sintering temperature of the ceramics by up to similar to 200 degreesC.