3D Bi-continuous interpenetrating networks enables Al-matrix composites with enhanced mechanical energy absorption capacity

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-05-20 DOI:10.1016/j.compstruct.2025.119293

Fei Chen , Jie Ding , Mingyong Jia , Yueqi Wu , Chi Zhang

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引用次数: 0

Abstract

The bi-continuous interpenetrating structure of ceramic reinforcement and Al matrix is expected to achieve a breakthrough in the trade-off between strength and toughness of Al-matrix composites. This study reports a promising method using biomimetic design and hybrid technology combining additive manufacturing with melt infiltration to prepare Al-matrix composites with high geometric freedom and superior mechanical properties. The Al₂O₃/Al interpenetrating phase composites (IPCs) with BCC and Gyroid lattice-based ceramic scaffolds exhibit simultaneously enhanced compressive stress, energy absorption, and specific energy absorption. The highest gain in specific energy absorption of Al₂O₃/Al IPCs reveals an impressive sixfold increase. These significant improvements are attributed to damage delocalization, interfacial interactions, and geometric effects of ceramic lattices. Overall, this study provides a potential strategy for lightweight Al-matrix composites in automotive and aerospace applications.

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三维双连续互穿网络使铝基复合材料具有增强的机械能量吸收能力

陶瓷增强与铝基双连续互穿结构有望突破铝基复合材料强度与韧性之间的权衡。本研究报告了一种利用仿生设计和混合技术将增材制造与熔体渗透相结合来制备具有高几何自由度和优异力学性能的铝基复合材料的方法。具有BCC和Gyroid晶格基陶瓷支架的Al2O3/Al互穿相复合材料（IPCs）同时表现出增强的压应力、能量吸收和比能吸收。Al2O3/Al IPCs比能吸收的最高增益显示出令人印象深刻的六倍增长。这些显著的改进归因于损伤离域、界面相互作用和陶瓷晶格的几何效应。总的来说，这项研究为汽车和航空航天应用中的轻量化铝基复合材料提供了一个潜在的策略。

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.