【摘要】 本文就Ca²⁺置换的铬酸镧——La_1-xCa_xCrO₃用作固体电介质CaO稳定ZrO₂电极的适用性,研究了La_1-xCa_xCrO₃的电导率和Ca²⁺置换量及晶格收缩的关系、La_1-xCa_xCrO₃与CaO稳定的ZrO₂的相容性、测定了热膨胀系数、机械强度,考察了La_1-xCa_xCrO₃的结晶稳定性等。给出了高温界面反应电子探针分析结果。更多还原

【Abstract】 This paper deals with the feasibility of CaO doped lanthanum chromate La_1-xCa_xCrO₃（x=0, 5%, 10%, 12%） as solid electrolyte to stabilize zirconia electrode. Electrical condu-ctivity of lanthanum chromate has been studied with relation to the substitution of calciumions for lanthanum in the crystal lattice as well as to the contraction of lattice dimen-sion.The compatibility of La_1-xCa_xCrO₃ with calcia stabilized zirconia at high tempera-tures has been also investigated. The thermal expansion, mechanical strength and tempe-rature stability of La_1-xCa_xCrO₃ were determined and the distribution of elements at inter-face of high temperature reaction between lanthanum cbromate and zirconia was investi-gated by electron probe microanalyser.更多还原