Development of Friction-Force Microscopy Simulator for Analysis of Superlubric Fullerene-Graphite Hybrid Material Surface

开发用于分析超润滑富勒烯-石墨杂化材料表面的摩擦力显微镜模拟器

• 批准号: 20360022
• 负责人: SASAKI Naruo
• 金额: $ 3.08万
• 依托单位: Seikei University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360022/
• 关键词: 走査プローブ顕微鏡; トライボロジー; フラーレン; 表面・界面物性; ナノ材料; 超潤滑; 接着; グラフェン

Simulator calculating frictional process of superlubric fullerene-graphite hybrid interface using molecular mechanics method has been developed, and the marked anisotropy of this interface due to the commensurate and incommensurate contacts at the interface is revealed. Particularly it is clarified that origins of superlubricity along the commensurate [1010] scan direction are (1) C_<60> small rotation (tilting), and (2) point-like contact between C_<60> molecule and graphite and its induced elastic deformation of C_<60> molecule. Furthermore, origin of the near-zero friction along [1230] direction is ascribed to that the energy barrier between neighboring minima does not vanish or always exists during the scanning process.

用分子力学方法模拟计算了超润滑富勒烯-石墨混杂界面的摩擦过程，揭示了由于界面处的公度接触和非公度接触而引起的界面的显著各向异性。特别阐明了在[1010]扫描方向上沿着超润滑性的来源是（1）C_<60>小旋转（倾斜），（2）C_分子与石墨的点状接触<60>及其引起的C_分子的弹性变形<60>。此外，沿沿着[1230]方向的近零摩擦的起源归因于相邻极小值之间的能垒在扫描过程中不消失或始终存在。

项目成果

Simulated nanoscale peeling process of monolayer graphene sheet: effect of edge structure and lifting position

• DOI: 10.1155/2010/742127
• 发表时间: 2010
• 期刊: Journal of Nanomaterials
• 作者: N. Sasaki;Hideaki Okamoto;Shingen Masuda;K. Miura;Noriaki Itamura

Nanocomposite Materials of Alternately Stacked C60 Monolayer and Graphene

• DOI: 10.1155/2010/891514
• 发表时间: 2010-01-01
• 期刊: JOURNAL OF NANOMATERIALS
• 作者: Ishikawa, Makoto;Kamiya, Shu;Miura, Kouji
• 通讯作者: Miura, Kouji

Mechanism of Superlubricity of Fullerene Molecular Bearings

富勒烯分子轴承的超润滑机理

• 发表时间: 2009
• 作者: 出立兼一;下里卓;峯崎俊哉;岩岡道夫;佐々木成朗
• 通讯作者: 佐々木成朗

Analysis of Mechanism of Low Lateral Stiffness of Superlubric C60 Bearing System

• DOI: 10.1143/jjap.48.030214
• 发表时间: 2009-03
• 期刊: Japanese Journal of Applied Physics
• 影响因子: 1.5
• 作者: Noriaki Itamura;K. Miura;N. Sasaki

C_<60>分子ベアリングによる超潤滑システムの構築

C_<60>利用分子轴承构造超级润滑系统

• 发表时间: 2009
• 期刊: 表面科学 30
• 作者: 三浦浩治;佐々木成朗;石川誠;板村賢明
• 通讯作者: 板村賢明