Uncovering the interface slipping and microplastic accumulation mechanism of carbon nanotube fibers under different temperatures

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2025-02-01 DOI:10.1016/j.carbon.2024.119898

Pengfei Wang , Deya Wang , Yangfan Wu , Ziqing Zhou , Jie Tian , Gengzhi Sun , Songlin Xu

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引用次数: 0

Abstract

Understanding the microplastic accumulation behavior of advanced carbon nanotube (CNT) fibers under complex thermal conditions is crucial in aerospace structures' durability and safety design, and the intrinsic plastic mechanism of CNT fibers under high-temperature prospects further investigation from the theoretical to the experimental. Herein, a novel CNT-CNT interface model was developed to clarify the microplastic evolution mechanism and its temperature effect. A series of cyclic-loading experiments at different temperatures were investigated to uncover the plastic accumulation process of CNT fibers. The in-situ scanning electric microscopy (SEM) experiments were introduced to observe the microstructure evolution of the CNT fiber under cyclic loading. The CNT fibers show more serious plasticity and weaker high-temperature fatigue resistance. The distance and overlap length between CNTs dominate the evolution of materials' plastic and thermal behavior. It can be concluded that optimizing the arrangement of the microstructures and limiting the thermal expansion between tubes will improve the fatigue resistance of CNT fibers. This work could provide an in-depth description of microplastic mechanisms and better guidance for the aerospace application of high-performance fibers under complex loading environments.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.