Comparative study of methods for measuring energy density for dielectric capacitors

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-04-21 DOI:10.1016/j.matlet.2025.138613

Haoran Bian , Hua Zhong , Xiaohui Liu , Jiake Xia , Fei Cao , Xuefeng Chen , Genshui Wang

引用次数: 0

Abstract

Recoverable energy density is a critical metric for dielectric capacitors in pulsed power applications. To resolve inconsistencies in existing evaluation approaches, this study establishes a standardized protocol by systematically comparing five characterization techniques for relaxor ferroelectric (RFE) and antiferroelectric (AFE) capacitors. Experimental analyses reveal that while hysteresis loop integration provides reliable benchmarking, discharge current methods overestimate energy density due to unaccounted losses. Conversely, equivalent capacitance measurements underestimate high-voltage performance, whereas UI curve integration and resistive energy consumption methods exhibit superior consistency for practical implementation. These insights advance material evaluation by aligning methodological selection with operational requirements and measurement artifacts.

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介质电容器能量密度测量方法的比较研究

可恢复能量密度是脉冲功率应用中介质电容器的一个关键指标。为了解决现有评价方法的不一致性，本研究通过系统比较弛豫铁电（RFE）和反铁电（AFE）电容器的五种表征技术，建立了一种标准化的方案。实验分析表明，虽然迟滞回线集成提供了可靠的基准，但由于未计算的损耗，放电电流方法高估了能量密度。相反，等效电容测量低估了高压性能，而UI曲线集成和电阻能量消耗方法在实际实施中表现出优越的一致性。这些见解通过将方法选择与操作需求和测量工件对齐来推进材料评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive