The wettability of pure liquid aluminum on oxide substrates

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2024-08-28 DOI:10.1111/jace.20103

Xingwen Wei, Beate Fankhänel, Wei Zhao, Anton Perminov, Enrico Storti, Mengke Liu, Guojun Ma, Olga Fabrichnaya, Alexandros Charitos, Olena Volkova

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Abstract

Oxide particles are considered to be one of the reasons for the stability of cellular porous Al foam. Thus, the contact angle (ө) of molten pure aluminum on oxide substrates, including Al₂O₃, CaO·2Al₂O₃ (CA2), CaO·6Al₂O₃ (CA6), mullite (3Al₂O₃·2SiO₂), and SiO₂ was measured in a vacuum heating microscope at a temperature of 950°C to determine the value of wettability of molten aluminum on various oxides. Thereafter, the measured contact angles followed the tendency as mullite (155°) > CA6 (152°) > MgAl₂O₄ (151°) > Al₂O₃ (149°) > SiO₂ (124°) > CA2 (100°). Furthermore, the cross-sectional area between molten aluminum and substrates was thoroughly analyzed, and the reaction products, such as the Al₂O₃ layer at the interface, have been detected. Thermo-Calc, with the combination of available databases, was used to perform thermodynamic simulations and to discuss and predict possible reactions under the current experimental conditions.

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氧化物基底上纯铝液的润湿性

氧化物颗粒被认为是蜂窝状多孔铝泡沫稳定性的原因之一。因此，在真空加热显微镜中，在 950°C 的温度下测量了熔融纯铝在氧化物基底（包括 Al2O3、CaO-2Al2O3 (CA2)、CaO-6Al2O3 (CA6)、莫来石（3Al2O3-2SiO2）和 SiO2）上的接触角 (ө)，以确定熔融铝在各种氧化物上的润湿性值。此后，所测得的接触角呈以下趋势：莫来石（155°）> CA6（152°）> MgAl2O4（151°）> Al2O3（149°）> SiO2（124°）> CA2（100°）。此外，还对熔融铝和基底之间的横截面积进行了深入分析，并检测到了反应产物，如界面上的 Al2O3 层。Thermo-Calc 结合现有数据库进行了热力学模拟，并对当前实验条件下可能发生的反应进行了讨论和预测。

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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.