Plasma-flash sintering: Metastable phase stabilization and evidence of ionized species

IF 3.5 3区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS
Eva Gil-González, Ahmed Taibi, Antonio Perejón, Pedro E. Sánchez-Jiménez, Luis A. Pérez-Maqueda
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引用次数: 0

Abstract

The first demonstration of plasma-flash sintering (PFS) is presented in this work. PFS is performed under a low-pressure atmosphere that consecutively generates plasma and flash events. It is shown, by using several combined characterization techniques, that PFS stabilizes metastable phases on the surface of the material, which may be partially, but not solely, attributed to the generation of oxygen vacancies, and induces the absorption of ionized species, if a reactive atmosphere is employed. Even though additional research is required to understand the fundamentals of PFS, it is evidenced its potential to be used as a material surface engineering tool, which may widen the technological capabilities of flash sintering.

Abstract Image

等离子闪烁烧结:可迁移相的稳定和离子化物种的证据
这项工作首次展示了等离子体闪光烧结(PFS)。PFS 是在连续产生等离子体和闪光事件的低压气氛下进行的。通过使用几种综合表征技术表明,PFS 稳定了材料表面的析出相,这可能部分归因于(但不完全归因于)氧空位的产生,如果使用反应气氛,PFS 还能诱导电离物种的吸收。尽管还需要更多的研究来了解 PFS 的基本原理,但这证明了它作为一种材料表面工程工具的潜力,它可以拓宽闪速烧结的技术能力。
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来源期刊
Journal of the American Ceramic Society
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.
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