Phase diagram of the system of (1-N...)BiFeO3-x PbFe0.5Nb0.5O3 solid solutions at room temperature

Shilkina L. A.; Pavlenko A. V.; Reznitchenko L. A.; Verbenko I. A.

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Phase diagram of the system of (1-N...)BiFeO3-x PbFe0.5Nb0.5O3 solid solutions at room temperature

机译：（1-N ...）BiFeO3-x PbFe0.5Nb0.5O3固溶体在室温下的系统相图

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Experimental samples of solid solutions of the (1-x)BiFeO3-x PbFe0.5Nb0.5O3 (0.00 a parts per thousand currency sign x a parts per thousand currency sign 1.00, Delta x = 0.025-0.05) system have been prepared according to the conventional ceramic technology. Their structural and dielectric characteristics have been studied. A phase diagram of the system at room temperature has been plotted taking into account the crystallochemical specificity, spatial inhomogeneity, and structural imperfection of the samples. This diagram is characterized by the presence of solid substitutional and interstitial solutions; the formation of concentration ranges with a dominant role of BiFeO3 and PbFe0.5Nb0.5O3; the presence of five single-phase regions, two regions of coexistence of phase states, and three morphotropic regions; and the formation of six regions with a constant experimental unit-cell volume. Correlations between the structural characteristics and dielectric properties of the ceramics under study have been established.

机译：根据（1-x）BiFeO3-x PbFe0.5Nb0.5O3（0.00 a每千货币符号xa a每千货币符号1.00，Delta x = 0.025-0.05）系统的固溶体实验样品已根据传统陶瓷技术。已经研究了它们的结构和介电特性。考虑到晶体化学特异性，空间不均匀性和样品的结构缺陷，绘制了系统在室温下的相图。此图的特点是存在固体替代和填隙溶液。 BiFeO3和PbFe0.5Nb0.5O3占主导地位的浓度范围的形成;存在五个单相区域，两个相态共存区域和三个同晶区域;并形成具有恒定实验单位细胞体积的六个区域。已经建立了所研究陶瓷的结构特性和介电性能之间的相关性。

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《Crystallography reports》 |2016年第2期|共7页
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Shilkina L. A.; Pavlenko A. V.; Reznitchenko L. A.; Verbenko I. A.;
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Phase diagram of the system of (1-N...)BiFeO3-x PbFe0.5Nb0.5O3 solid solutions at room temperature

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