{"title":"Crystallization behavior and electrical properties of Bi2WO6/CoFe2O4 magnetoelectric composite with coherent interfaces","authors":"Shaojie Sun, Huijiadai Luo, Fangzhe Li, Lu Cao, Jingxin Tian, Xiaohui Tang, Hua Ke, Yu Zhou","doi":"10.1111/jace.70150","DOIUrl":null,"url":null,"abstract":"<p>We successfully constructed coherent interfaces with minimal lattice mismatch in Bi<sub>2</sub>WO<sub>6</sub>/CoFe<sub>2</sub>O<sub>4</sub> (CFO/BWO) magnetoelectric composite powders via a two-step calcining technique. The CFO particles were embedded uniformly inside BWO grains. The coherent interface inhibits the aggregation of CFO phases and the carriers caused by lattice mismatch, and it significantly stabilizes the dielectric properties of the composite sample at high temperature. Due to excellent insulation, the Curie temperature of CFO can be characterized in the temperature-dependent permittivity spectra of the composite sample at 532°C, which can not be observed in that of the pure CFO sample. The distinct small polaron conduction mechanism resulting from coherent.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 12","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.70150","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
We successfully constructed coherent interfaces with minimal lattice mismatch in Bi2WO6/CoFe2O4 (CFO/BWO) magnetoelectric composite powders via a two-step calcining technique. The CFO particles were embedded uniformly inside BWO grains. The coherent interface inhibits the aggregation of CFO phases and the carriers caused by lattice mismatch, and it significantly stabilizes the dielectric properties of the composite sample at high temperature. Due to excellent insulation, the Curie temperature of CFO can be characterized in the temperature-dependent permittivity spectra of the composite sample at 532°C, which can not be observed in that of the pure CFO sample. The distinct small polaron conduction mechanism resulting from coherent.
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.
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