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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >A novel nacre-like metal/metal structure by lithography and electrodeposition
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A novel nacre-like metal/metal structure by lithography and electrodeposition

机译：通过光刻和电沉积的新型珍珠醛金属/金属结构

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摘要

Taking a leaf out of Nature's book, the use of nacre-like structure in the materials synthesis has generated notable successes in creating novel structural composites but has yielded few practical advances in metals. Here we have successfully architected the intricate hierarchical microstructure, the brick-and-mortar structure, in metal/metal hybrids simply by deploying the coupling of lithographic method and electrodeposition technique, which allows the accurate control over the size, volume fraction and shape of the brick, amorphous Ni-P alloy or nanocrystalline Ni, and the formation of a fully interconnected mortar phase, ultrafine-grained Ni or Cu. Tensile testing results show that these innovative composites exhibit an enhanced crack-initiation fracture toughness, and their fracture behaviors have a strong dependency on the initial notch/crack orientation. Our work removes restrictions on the design and synthesis of the real nacre-like metal/metal structure, and provides a promising strategy for developing advanced metals by taking advantages of complex 3 demension brick-and-mortar structure and intricate interface architectures. (C) 2021 Elsevier B.V. All rights reserved.
机译：借鉴《自然》一书，在材料合成中使用类似珍珠层的结构在创造新型结构复合材料方面取得了显著的成功，但在金属方面几乎没有取得实际进展。在这里，我们成功地构建了复杂的分层微观结构，即砖和砂浆结构，在金属/金属混合物中，只需部署光刻方法和电沉积技术的耦合，就可以精确控制砖、非晶态镍磷合金或纳米晶镍的大小、体积分数和形状，形成完全互连的砂浆相，即超细颗粒镍或铜。拉伸试验结果表明，这些新型复合材料表现出增强的裂纹萌生断裂韧性，其断裂行为强烈依赖于初始缺口/裂纹方向。我们的工作消除了对真珠层金属/金属结构设计和合成的限制，并通过利用复杂的三维砖混结构和复杂的界面结构，为开发先进金属提供了一个有前途的策略。（c）2021爱思唯尔B.V.保留所有权利。

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