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首页> 外文期刊>Journal of surface investigation: x-ray, synchrotron and neutron techniques >Phase Formation, Structure, and Electrical Conductivity of Modified Lanthanum-Gallate Ceramics
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Phase Formation, Structure, and Electrical Conductivity of Modified Lanthanum-Gallate Ceramics

机译:改性镧 - 粘滞陶瓷的相形成,结构和导电性

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摘要

The solid-phase synthesis method is used to prepare perovskite-like ceramic samples with the compositions (La~(0.8)Sr~(0.2)){[Ga~(0.8– x )(Si~(0.5)Mg~(0.5))~( x )]Mg~(0.2)}O~(3– y )( x = 0, 0.1, 0.2, 0.4, and 0.6) and investigate their phase formation, structure, microstructure, and electrical conductivity. Single-phase samples are obtained when up to 10 at % of gallium cations are replaced with silicon and magnesium cations. It is established that silicon-containing samples with the perovskite structure are characterized by a high density, optimal microstructure, dense grain packing, and large electrical conductivities at high temperatures.
机译:固相合成方法用于使用组合物制备钙钛矿状陶瓷样品(La〜(0.8)Sr〜(0.2)){[Ga〜(0.8- x)(Si〜(0.5)mg〜(0.5) )〜(x)] Mg〜(0.2)} O〜(3- y)(x = 0,0.1,0.2,0.4和0.6),并研究其相形成,结构,微观结构和电导率。 当高达10at以1%的镓阳离子取代硅和镁阳离子时,获得单相样品。 建立含有钙钛矿结构的含硅样品的特征在于高密度,最佳的微观结构,致密的颗粒包装和高温下的大电导率。

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