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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Properties of porous glasses with embedded ferroelectric materials
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Properties of porous glasses with embedded ferroelectric materials

机译：嵌入铁电材料的多孔玻璃的性能

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摘要

Methods of introducing two ferroelectric materials, viz. NaNO2 and (CH3NH3)(5)BiCl11 (PMACB), into porous glass matrices and the results of dielectric, pyroelectric, thermal expansion and SEM investigations are presented. The best filling degree was achieved for NaNO2 introduced from the melt, whereas a significantly worse filling effect was achieved for a water solution as the introducing agent. A splitting was observed in the temperature dependence of dielectric permittivity related to the incommensurate phase of NaNO2 embedded in porous glass from a water solution, whereas no incommensurate phase was observed in the case of glass filled with NaNO2 from the melt. The confined materials turned out to possess ferroelectric properties and exhibited phase transitions. The negative size effect was observed for porous glasses filled with NaNO2 and PMACB. The above conclusions are based on the anomaly of dielectric, pyroelectric and dilatometric properties observed in the phase transition regions. (c) 2006 Elsevier B.V. All rights reserved.
机译：引入两种铁电材料的方法。将NaNO2和（CH3NH3）（5）BiCl11（PMACB）放入多孔玻璃基质中，并给出了介电，热电，热膨胀和SEM研究的结果。从熔体中引入的NaNO2达到了最佳的填充度，而水溶液作为引入剂的填充效果却大大恶化。观察到与介电常数的温度相关性的分裂，该介电常数与从水溶液嵌入多孔玻璃中的NaNO 2的不相称相有关，而在从熔体中充满NaNO 2的玻璃中没有观察到不相称的相。受限材料证明具有铁电性能并表现出相变。对于填充有NaNO 2和PMACB的多孔玻璃，观察到了负尺寸效应。以上结论基于在相变区域中观察到的介电，热电和膨胀特性的异常。 （c）2006 Elsevier B.V.保留所有权利。

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