水分对氧化MWCNT和TGS复合材料铁电-准电相变的影响

IF 1.3 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Ferroelectrics Letters Section Pub Date : 2021-04-30 DOI:10.1080/07315171.2021.1923116

H. Nguyen, Phan Thi Hong Thao

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引用次数: 6

摘要

摘要:本文报道了在相对湿度为90%的条件下，在不同储存时间内，残余水对含有5%氧化多壁碳纳米管(OMWCNTs)的硫酸甘油三酯(TGS)的相变影响的实验结果。还合成了含有TGS和未氧化MWCNT的类似复合材料进行比较。根据测量数据，在储存时间小于5天的样品中，水分被很好地吸附到OMWCNT/TGS复合材料中，导致相变点向更高的温度移动。较长的储存时间导致相变时介电常数显著下降。

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Influence of moisture on ferroelectric–paraelectric phase transition of a composite containing oxidized MWCNT and TGS

Abstract This work reports experimental results for investigating the effects of residual water on phase transition in triglycine sulfate (TGS) filled with 5 wt% of oxidized multiwalled carbon nanotubes (OMWCNTs) under a relative humidity of 90% for different storage time. A similar composite containing TGS and non-oxidized MWCNT was also synthesized for comparison. According to measured data, the moisture was well adsorbed into OMWCNT/TGS composite and resulted in the shift of phase transition point toward higher temperatures for samples stored for less than 5 days. The longer storage caused a significant drop of dielectric constant at phase transition.

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来源期刊

Ferroelectrics Letters Section 物理-物理：凝聚态物理

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

4.8 months

期刊介绍： Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.