基于亚硒酸铅的硒化铅无序化及转化为高效铁电体

IF 0.8 4区 材料科学 Q4 MATERIALS SCIENCE, CERAMICS
V. V. Tomaev, A. G. Syrkov, M. M. Sychev
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引用次数: 0

摘要

提出了一种通过大气氧热氧化降低硒化铅立方相稳定性并使其转变为有序的亚硒酸铅单斜相的方法。对硒化铅与氧氧化可能发生的化学反应过程进行了估计热力学分析。采用x射线发射分析、x射线衍射、红外光谱反射、直流和交流电导率研究以及核磁共振等方法研究了硒化铅在大气氧作用下的氧化动力学。对于PbSeO3结构,估计了Goldschmidt稳定因子,表明该结构可归类为类钙钛矿结构,具有铁电性质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Disordering and Conversion of Lead Selenide into an Efficient Ferroelectric Based on Lead Selenite

Disordering and Conversion of Lead Selenide into an Efficient Ferroelectric Based on Lead Selenite

An approach is proposed to reduce the stability of the cubic phase of lead selenide by thermal oxidation with atmospheric oxygen and its transformation into an ordered monoclinic phase of lead selenite. An estimated thermodynamic analysis (TA) of the course of possible chemical reactions of lead selenide oxidation with oxygen is carried out. The kinetics of lead selenide oxidation with atmospheric oxygen are studied by X-ray emission analysis, X-ray diffractometry, optical reflection in the infrared region of the spectrum, studies of conductivity in direct and alternating currents, and nuclear magnetic resonance. For the PbSeO3 structure, the Goldschmidt stability factor was estimated and it was shown that the structure can be classified as perovskite-like and have ferroelectric properties.

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来源期刊
Glass Physics and Chemistry
Glass Physics and Chemistry 工程技术-材料科学:硅酸盐
CiteScore
1.20
自引率
14.30%
发文量
46
审稿时长
6-12 weeks
期刊介绍: Glass Physics and Chemistry presents results of research on the inorganic and physical chemistry of glass, ceramics, nanoparticles, nanocomposites, and high-temperature oxides and coatings. The journal welcomes manuscripts from all countries in the English or Russian language.
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