Please use this identifier to cite or link to this item: https://doi.org/10.1021/acsami.2c03564
Title: Extraordinary Antiwear Properties of Graphene-Reinforced Ti Composites Induced by Interfacial Decoration
Authors: Yan, Qi
Chen, Biao
Ye, Wenting
Wan, Jie
Zhang, Tao
Kou, Hongchao
Zhou, Qin
Lu, Wenfeng 
Wang, Hao 
Shen, Jianghua
Wang, Haifeng
Li, Jinshan
Keywords: Science & Technology
Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
graphene
TMCs
interface strength
wear
self-lubricity
SI-C SYSTEM
MATRIX COMPOSITES
MECHANICAL-PROPERTIES
TRIBOLOGICAL PROPERTIES
ABRASIVE WEAR
TITANIUM
ALLOY
STRENGTH
CARBON
LAYER
Issue Date: 15-Jun-2022
Publisher: AMER CHEMICAL SOC
Citation: Yan, Qi, Chen, Biao, Ye, Wenting, Wan, Jie, Zhang, Tao, Kou, Hongchao, Zhou, Qin, Lu, Wenfeng, Wang, Hao, Shen, Jianghua, Wang, Haifeng, Li, Jinshan (2022-06-15). Extraordinary Antiwear Properties of Graphene-Reinforced Ti Composites Induced by Interfacial Decoration. ACS APPLIED MATERIALS & INTERFACES 14 (23) : 27118-27129. ScholarBank@NUS Repository. https://doi.org/10.1021/acsami.2c03564
Abstract: The expected excellent lubricant effect of graphene in metals during friction and wear is rarely achieved because of the difficulty in synthesizing suitable interfaces. Particularly, the situation is more challenging in titanium (Ti) matrix composites (TMCs) because of the high chemical-interface-reaction tendency between graphene and Ti during composite fabrication. In this study, few-layered graphene (FLG) decorated with SiC nanoparticles (SiCp) was synthesized as reinforcement in Ti-6Al-4V alloy to improve the interface of the composites. It was found that interfacial SiCp not only strengthened the interface bonding by the Si solid solution but also inhibited the chemical reaction between FLG and the Ti matrix with reduced sp3defects. The composite with 30 wt % SiC-decorated FLG showed an 86.8% decrement in wear rate compared to the unreinforced matrix, resulting in exceptionally high antiwear enhancing efficiency, which was around fourfold of the available values of other TMCs in the literature. The antiwear mechanism was investigated by thorough characterization of the interfaces and microstructures of the composites. The idea of interfacial decoration can be potentially applied to other nanocarbon/metal composites with the advantages of retaining the function performance of nanocarbon materials.
Source Title: ACS APPLIED MATERIALS & INTERFACES
URI: https://scholarbank.nus.edu.sg/handle/10635/233900
ISSN: 1944-8244
1944-8252
DOI: 10.1021/acsami.2c03564
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