Dielectric Relaxor of A Site Complex Ferroelectric Ceramics of Bi_{0.5}(Na_{0.82}K_{0.18})_{0.5}TiO₃-BiCrO₃

Chang-Rong ZHOU; Xin-Yu LIU; Gui-Hua YANG; Min-Hong JIANG

doi:10.3724/sp.j.1077.2009.00953

journal article·2009-11-09

Dielectric Relaxor of A Site Complex Ferroelectric Ceramics of Bi_0.5(Na_0.82K_0.18)_0.5TiO₃-BiCrO₃

Chang-Rong ZHOU, Xin-Yu LIU, Gui-Hua YANG, Min-Hong JIANG

Journal of Inorganic Materials· Volume 24· Issue 5

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Source abstract

Abstract

采用固相反应法制备了A位复合铁电陶瓷（1-x）Bi0.5（Na0.82K0.18）0.5TiO3-xBiCrO3（BNKT-BCx）. 研究了该陶瓷在室温至500℃温度范围内的介电性能. 结果表明该陶瓷的介电温谱存在两个介电反常峰和一个介电损耗峰, 低温介电反常峰温度附近具有明显的介电常数频率依赖性, 但居里峰随频率增加基本不变, 与典型弛豫铁电体的特征不同. 将弛豫铁电体分为本征弛豫和非本征弛豫铁电体, 通过分析极化前和极化后陶瓷的介电温谱, 发现该体系低温介电反常峰温度附近的介电频率依赖性为空间电荷和缺陷偶极子极化引起的非本征弛豫.

Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glasses Electronic materials

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Dielectric materials and actuators

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (6)

Show source-provided references

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