Phase transitions in superionic conductor Na3Fe2(PO4)3

被引：0
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作者：
Lyubutin, I.S.
Mel'nikov, O.K.
Sigarev, S.E.
Terziev, V.G.
机构：
来源：
Bulletin of the Academy of Sciences of the U.S.S.R. Physical series | 1988年 / 52卷 / 09期
关键词：
Chemical Reactions - Differential Thermal Analysis - X-ray Analysis;
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摘要：
The present work attempts a detailed investigation of the features of the phase transitions of Na3Fe2(PO4)3 to a state with high ionic conduction. The samples are obtained by the standard method of solid-phase synthesis. The completeness of chemical reaction is monitored by X-ray phase analysis. The thermal properties of Na3Fe2(PO4)3 are investigated by differential-thermal analysis (DTA). Electrophysical measurements are undertaken on ceramic samples in the form of tablets (diameter 6-12 mm, thickness 2-4 mm), with graphite electrodes applied to the end surfaces. The resistance (conduction) is determined from an analysis of impedance hodographs taken in the frequency range 5-5.105 Hz at temperatures 290-600 K.
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页码：53 / 57
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