Orientation microscopy–assisted grain boundary analysis for protonic ceramic cell electrolytes

IF 3.8 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of the American Ceramic Society Pub Date : 2025-01-07 DOI:10.1111/jace.20371

Sooraj Patel, Sumit Goswami, Pralay Paul, Fan Liu, Shuanglin Zheng, Julian E. Sabisch, Chuancheng Duan, Thirumalai Venkatesan, Hanjong Paik, Hanping Ding, Pejman Kazempoor, Shuozhi Xu, Dong Ding, Iman Ghamarian

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Abstract

Grain boundaries in protonic ceramic cell (PCC) electrolytes hinder proton transport, reducing interfacial conductivity. In multicomponent PCC electrolytes, the inclusion of sintering aids further accentuates the complexity of grain boundaries. In this study, we synthesize nanocrystalline BaCe_0.4Zr_0.4Y_0.1Yb_0.1O₃₋_δ thin films via pulsed laser deposition and analyze their grain boundary character distributions using orientation data collected by precession electron diffraction technique. The results reveal an anisotropic distribution of grain boundary characters, with notably high populations of 180°-tilt and twist grain boundaries. These findings provide critical insights into identifying the predominant grain boundaries in this PCC electrolyte material, assessing the vast five-dimensional grain boundary space.

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取向显微镜辅助质子陶瓷电池电解质的晶界分析

质子陶瓷电池（PCC）电解质中的晶界阻碍了质子的传输，降低了界面导电性。在多组分PCC电解质中，烧结的加入进一步加剧了晶界的复杂性。本研究采用脉冲激光沉积法制备了纳米晶BaCe0.4Zr0.4Y0.1Yb0.1O3−δ薄膜，并利用进动电子衍射技术采集的取向数据分析了其晶界特征分布。结果表明，晶界特征呈各向异性分布，其中180°倾斜晶界和扭转晶界数量较多。这些发现为确定PCC电解质材料的主要晶界，评估巨大的五维晶界空间提供了重要的见解。

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.