有序异构功能材料
收稿日期: 2022-06-01
修回日期: 2022-07-01
网络出版日期: 2022-09-05
基金资助
国家重点研发计划项目(2021YFB3500302);国家自然科学基金项目(51931007);国家自然科学基金项目(51971196);国家自然科学基金项目(52071279)
Heterostructured Functional Materials with Ordered Structures
Received date: 2022-06-01
Revised date: 2022-07-01
Online published: 2022-09-05
Supported by
National Key Research and Development Program of China(2021YFB3500302);National Natural Science Foundation of China(51931007);National Natural Science Foundation of China(51971196);National Natural Science Foundation of China(52071279)
异构材料旨在构筑不同尺寸的结构或功能基元,通过基元间的协同耦合效应来解决材料基本特性相互冲突的问题和提高材料性能。虽然该理念已被成功地用来解决材料的强度-塑性之间的倒置关系和产生优异的力学性能,但在功能材料应用方面还处于探索初期。在无序异构材料的基础上,将不同尺寸的基元如晶粒、相或畴结构等进行有序排列,可以增强基元间的耦合效应,进一步提高材料的性能,甚至产生变革性的新功能。本观点文章以永磁材料为例,简要介绍了有序异构功能材料中新的物理机制和增强的性能,讨论了异构材料中功能基元的有序化所产生的高性能或变革性的、全新的功能特性。
张海天 , 张湘义 . 有序异构功能材料[J]. 金属学报, 2022 , 58(11) : 1459 -1466 . DOI: 10.11900/0412.1961.2022.00274
Heterostructured materials (HSMs) can be created by introducing differently sized constituent components to enhance their performance by disentangling conflicting materials' properties, through the synergistic coupling effect of the constituents. This strategy has been successfully applied to structural materials to overcome the trade-off between strength and ductility and achieve superior mechanical properties; however, it remains less explored for functional materials. Beyond the random distribution of the constituents in HSMs, the ordering of constituents, e.g., grains, phases, and domain structures, can further enhance their coupling effect, thus leading to improved material properties or even transformative new functionalities. In this short perspective article, permanent magnetic materials are used as examples to review the recent progress in achieving enhanced properties and/or creating new physical mechanisms by building HSMs with ordered structures. This paper demonstrates that high-performance or revolutionary functional materials can be achieved by creating ordered HSMs.
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