Study on the mechanism of ultra-low friction coefficient of CVD diamond in vacuum

真空CVD金刚石超低摩擦系数机理研究

• 批准号: 23560172
• 负责人: KANDA Kazutaka
• 金额: $ 3.58万
• 依托单位: Fukui University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560172/
• 关键词: ダイヤモンド; CVD; 摩擦係数; 真空; アルゴン; 酸化膜; しゅう動部材; メカニズム; トライボロジー; 黒鉛; 超潤滑; 研磨; 摺動部品

Recently, super-lubricity phenomenon showing low coefficient of friction of 0.1 or less were found in the friction test performed in vacuum for the combination of CVD diamond and metals. This phenomenon can't be explained by conventional theory, since almost all matals are thought to be show high coefficient of friction under vacuum condition. To clarify the mechanism of this phenomenon, friction tests for the combination of CVD diamond and many kinds of metals were carried out in air, vacuum, and argon. In this experiment, three types of stainless steels with different Ni contents were used for mating material of CVD diamond. From the XPS analysis of sliding surfaces, carbon and oxygen was found for combination of CVD diamond and metals, which show especially low coefficient of friction. From these results, it was clarified that the oxygen in the oxide film play a role as a catalyst for graphitization of diamond, and showing a low coefficient of friction in vacuum.

最近，在真空中对CVD金刚石和金属的组合进行的摩擦试验中发现了表现出0.1或更小的低摩擦系数的超润滑现象。这种现象不能用传统的理论来解释，因为几乎所有的金属在真空条件下都表现出高的摩擦系数。为了阐明这一现象的机理，在空气、真空和氩气中对CVD金刚石与多种金属的结合进行了摩擦试验。本实验选用三种不同镍含量的不锈钢作为CVD金刚石的配套材料。从滑动表面的XPS分析，发现CVD金刚石和金属的组合中有碳和氧，这显示出特别低的摩擦系数。从这些结果可以看出，氧化膜中的氧起到金刚石石墨化的催化剂的作用，并且在真空中显示出低摩擦系数。

项目成果

ダイヤモンドおよびDLCの摩擦特性

金刚石和DLC的摩擦特性

• 发表时间: 2014
• 作者: Sakai R;Kikuchi A;Morita T;Takahira N;Uchiyama K;Yamamoto T;Moriya M;Uchida K;Fukusima K;Tanaka K;Takaso M;Itoman M;Mabuchi K.;神田一隆
• 通讯作者: 神田一隆

黒鉛材料の摩擦特性

石墨材料的摩擦性能

• 发表时间: 2012
• 作者: 塩入翔也;神田一隆;橋本賢樹
• 通讯作者: 橋本賢樹

Friction characteristics between CVD diamond film and stainless steel under

CVD金刚石薄膜与不锈钢之间的摩擦特性

• 发表时间: 2011
• 作者: Kenta Nakamura;Kenji Tamaoki;Kazutaka Kanda;Masahiko Jin and Kazuo Nakama
• 通讯作者: Masahiko Jin and Kazuo Nakama

真空下でのCVDダイヤモンド膜とSUS材の摺動特性

CVD金刚石薄膜与SUS材料在真空下的滑动性能

• 发表时间: 2011
• 作者: 中村健太;玉置賢次;神田一隆;神雅彦;中間一夫;前田雅人
• 通讯作者: 前田雅人

多結晶ダイヤモンド膜の鋼材との摩擦特性

聚晶金刚石薄膜与钢材的摩擦性能

• 发表时间: 2013
• 作者: Sakai R;Takahashi A;Takahira N;Uchiyama K;Yamamoto T;Uchida K;Fukushima K;Moriya M;Takaso M;Itoman M;Mabuchi K.;Kenta Nakamura;酒井利奈，Roland Steck，Gongfa Chen，Michael Schuetz，奥田奈穂，峰原宏昌，上野正喜，内田健太郎，高相晶士，糸満盛憲，馬渕清資;中村健太
• 通讯作者: 中村健太