Rapid laser-assisted compositional screening of high-entropy diborides for superior oxidation resistance up to 2400°C

IF 3.8 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2025-09-01 DOI:10.1111/jace.70212

Zihao Wen, Haifeng Tang, Yiwen Liu, Hulei Yu, Lei Zhuang, Yanhui Chu

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Abstract

Achieving superior oxidation resistance in high-entropy diborides (HEB₂) above 1800°C is critically imperative for their thermal protection applications, yet related studies are limited. Here, we propose a rapid laser-assisted compositional screening strategy to search for HEB₂ with superior oxidation resistance from 1800°C to 2400°C. Specifically, the oxidation resistance of as-fabricated (Hf_0.28Zr_0.28Ta_0.28M_0.16)B₂ (HEB₂-M; M = Ti, V, Cr, Nb, Mo, W, Sc, Y, La, Nd, Sm, Gd, Dy, Ho, Er, Tm, Yb, and Lu) samples with 18 different transition-metal and rare-earth elements is rapidly evaluated at 2100°C via a self-developed high-throughput laser oxidation test technology. The results demonstrate that the as-fabricated HEB₂-W samples possess the best oxidation resistance among all the samples. Further oxidation tests have shown that the oxidation behavior of the as-fabricated HEB₂-W samples follows the parabolic law from 1800°C to 2400°C, demonstrating their superior oxidation resistance across a wide temperature range. Such good oxidation resistance is attributed to the formation of WO₃‒B₂O₃ glass with increased viscosity, which can facilitate the densification of the oxide layer.

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高熵二硼化物的快速激光辅助成分筛选，具有高达2400°C的优异抗氧化性

在1800°C以上实现高熵二硼化物（HEB2）的优异抗氧化性对于其热防护应用至关重要，但相关研究有限。在此，我们提出了一种快速激光辅助组合筛选策略，以寻找在1800°C至2400°C范围内具有优异抗氧化性的HEB2。具体而言，通过自行开发的高通量激光氧化测试技术，在2100℃下快速评估了18种不同过渡金属和稀土元素制备的（Hf0.28Zr0.28Ta0.28M0.16）B2 （HEB2-M; M = Ti、V、Cr、Nb、Mo、W、Sc、Y、La、Nd、Sm、Gd、Dy、Ho、Er、Tm、Yb和Lu）样品的抗氧化性。结果表明，制备的HEB2-W样品具有较好的抗氧化性能。进一步的氧化试验表明，制备的HEB2-W样品在1800°C至2400°C范围内的氧化行为遵循抛物线规律，表明其在很宽的温度范围内具有优异的抗氧化性。这种良好的抗氧化性归因于形成粘度增加的WO3-B2O3玻璃，有利于氧化层的致密化。

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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.