Mechanical and electrical conductivity of Cu-10Ti3SiC2/Cu-3GFs@Cu composites by heterogeneous laminated micro-nanostructure design

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-02-26 DOI:10.1016/j.compositesa.2025.108828

Mu Wang , Xiaosong Jiang , Hongliang Sun , Rui Shu , Min Zou , Yu Jiao , Zixuan Wu , Liu Yang

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引用次数: 0

Abstract

A heterogeneous laminated structure (HLS) design, complemented with an interlayer ordered structure (IOS), combined with heterogeneous powder gradient stacking (HPGS) and flake powder metallurgy (FPM) processes, results in the construction of a heterogeneous laminated micro-nanostructure (HLMS) with HLS and IOS of Cu/Ti₃SiC₂/C composites. Systematic investigation was conducted to explore the sources and contributions to improve the strength and resistance of the composites. Under applied loads, the HLS and IOS work synergistically. The refined grain orientation within the HLS reinforces the non-uniform deformation at interfaces, facilitating the interaction between strain gradients and geometrically necessary dislocations (GND), thereby enhancing energy absorption or dissipation during fracture. Meanwhile, the highly aligned reinforcement particles (RP) in the IOS help coordinate plastic deformations, reduce local stress concentrations, and optimize electron transport pathways to improve their performance. Results corroborate the assertion that this innovative HLMS structure design strategy is a highly valuable approach for the development of hetero-structured materials.

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采用异质层状微纳米结构设计的 Cu-10Ti3SiC2/Cu-3GFs@Cu 复合材料的力学和导电性能

采用非均相层状结构（HLS）和层间有序结构（IOS）设计，结合非均相粉末梯度堆积（HPGS）和片状粉末冶金（FPM）工艺，构建了Cu/Ti3SiC2/C复合材料的非均相层状微纳米结构（HLMS）。通过系统的研究，探讨了提高复合材料强度和抗力的来源和贡献。在应用负载下，HLS和IOS协同工作。HLS内细化的晶粒取向强化了界面处的非均匀变形，促进了应变梯度和几何必要位错（GND）之间的相互作用，从而增强了断裂过程中的能量吸收或耗散。同时，IOS中高度排列的增强颗粒（RP）有助于协调塑性变形，减少局部应力集中，优化电子传递途径，从而提高其性能。结果证实了这种创新的HLMS结构设计策略对于异质结构材料的发展是一种非常有价值的方法。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.