Abstract

We have studied the effect of mechanical activation in lead ferroniobate synthesis on the formation of perovskite and pyrochlore phases during both mechanochemical synthesis and subsequent firing. It has been shown that, during mechanical activation, the first to form is the perovskite structure. During subsequent sintering of the material, the pyrochlore structure begins to form as well. As the firing temperature is raised to 650–750°C, the perovskite structure is again formed. We provide explanation for this process.

中文翻译：

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铌铁酸铅机械化学合成过程中钙钛矿和烧绿石相的形成

摘要

我们已经研究了在机械化学合成和随后的焙烧过程中，在铁铌酸铅合成中机械活化对钙钛矿和烧绿石相形成的影响。已经表明，在机械活化过程中，首先形成的是钙钛矿结构。在随后的材料烧结过程中，烧绿石结构也开始形成。随着烧成温度升高到650–750°C，钙钛矿结构再次形成。我们对此过程提供了解释。