T 44 The effect of doping and processing conditions on properties of La1-xSrxGa1-yMgyO3-alpha [Text] / V. P. Gorelov, D. I. Bronin, J. V. Sokolova, H. Nafe, F. Aldinger // Journal of the European Ceramic Society. - 2001. - V. 21, N 13. - P2311-2317. - Библиогр.: p. 2317 (10 назв.) . - ISSN 0955-2219 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИМИЯ -- La1-xSrxGa1-yMgyO3-альфа -- La -- Sr -- Ga -- Mg -- ЛАНТАН -- СТРОНЦИЙ -- ГАЛЛИЙ -- МАГНИЙ -- ЭЛЕКТРОПРОВОДНОСТЬ -- КЕРАМИКА Аннотация: The phase composition and electrical conductivity of ceramics based on La1-xSrxGa1-yMgyO3-alpha (LSGM) were studied after doping with different quantities of Sr and Mg. The effect of the processing conditions on the density of the LSGM ceramics was analysed. By means of microprobe X-ray analysis it was found that the limit solubility of Sr and Mg in LaGaO3 corresponded to x = y ~ 0.16. If excess Sr and/or Mg is added, LaSrGa3O7 and/or La4Ga2O9 phases are formed respectively in addition to the main LaGaO3 perovskite phase. No other impurity phases were detected. The maximum electrical conductivity of LSGM was achieved in the region of the limit solubility of the dopants |