纳米粒子操作过程中摩擦力的非单调负荷依赖性

IF 1.5 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
Chunsheng Luo, Lei Chen, Chuan Tang, Yangqin Liu, Yilong Jiang, Linmao Qian
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引用次数: 0

摘要

纳米粒子(NPs)的摩擦学行为在纳米润滑和超精密制造领域引起了广泛关注。利用原子力显微镜研究了硅表面上作用于单个表面的 SiO2 NPs 的摩擦和动态行为。随着法向载荷的增加(0-300 nN),NPs 的摩擦力(包括静态摩擦力和动力学摩擦力)先减小后增大。摩擦力行为与载荷的非单调依赖性对应于被操纵 NPs 的 "滑动-滚动-滑动 "运动状态的动态转变,这可以通过双赫兹模型预测,并通过纳米压痕 NPs 得到进一步证实。这项研究对于在当代三体磨料摩擦学中调节 NPs 的动态行为具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Nonmonotonic load-dependence of friction during nanoparticle manipulation

Nonmonotonic load-dependence of friction during nanoparticle manipulation

The tribological behaviors of nanoparticles (NPs) have attracted widespread attention in the fields of nano-lubrication and ultra-precision manufacturing. The frictional and dynamic behaviors of SiO2 NPs acting with the single asperity were studied on silicon surface utilizing atomic force microscope. The friction forces of NPs, both static and kinetic, exhibit an initial decrease followed by an increase as the normal load increases (0–300 nN). The nonmonotonic load-dependence of friction behavior corresponds to the dynamic transformation of “sliding-rolling-sliding” motion state of the manipulated NPs, which can be predicted by a Double-Hertz model and further confirmed by nanoindentation-marked NPs. This research has a significant implication for regulating dynamic behaviors of NPs in contemporary three-body abrasive tribology.

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来源期刊
Micro & Nano Letters
Micro & Nano Letters 工程技术-材料科学:综合
CiteScore
3.30
自引率
0.00%
发文量
58
审稿时长
2.8 months
期刊介绍: Micro & Nano Letters offers express online publication of short research papers containing the latest advances in miniature and ultraminiature structures and systems. With an average of six weeks to decision, and publication online in advance of each issue, Micro & Nano Letters offers a rapid route for the international dissemination of high quality research findings from both the micro and nano communities. Scope Micro & Nano Letters offers express online publication of short research papers containing the latest advances in micro and nano-scale science, engineering and technology, with at least one dimension ranging from micrometers to nanometers. Micro & Nano Letters offers readers high-quality original research from both the micro and nano communities, and the materials and devices communities. Bridging this gap between materials science and micro and nano-scale devices, Micro & Nano Letters addresses issues in the disciplines of engineering, physical, chemical, and biological science. It places particular emphasis on cross-disciplinary activities and applications. Typical topics include: Micro and nanostructures for the device communities MEMS and NEMS Modelling, simulation and realisation of micro and nanoscale structures, devices and systems, with comparisons to experimental data Synthesis and processing Micro and nano-photonics Molecular machines, circuits and self-assembly Organic and inorganic micro and nanostructures Micro and nano-fluidics
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