Promotion of running-in process by UV irradiation to CN_x coating and improvement of proof property of pressure

紫外线照射促进CN_x涂层磨合，提高耐压性能

• 批准号: 20760097
• 负责人: TAKAYUKI Tokoroyama
• 金额: $ 2.75万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760097/
• 关键词: 超低摩擦; 高耐摩耗性; 窒素雰囲気; 窒化ケイ素球; 紫外線照射; 炭素系硬膜; オージェ電子分光分析; 窒素ガス; トライボロジー; ピンオンディスク摩擦試験; 摩擦; 摩耗; 炭素系硬質薄膜; 窒素; グラファイト化

The superlow friction phenomena of CN_x (Carbon Nitride) coating slid against Si3N4 ball in N2 gas was suggested to be taken place when the topmost surface of CN_x changed to graphitic structure. It was assumed that ultraviolet ray (UV) could break C-N single bond when the ray power exceeded C-N single bonding energy, and we hypothesized that UV irradiation could make the CN_x coating topmost surface graphitic without friction in N2 gas. We carried out preparing the CN_x coating irradiated UV as 254, 312, and 365 nm wave length, then these specimens were friction tested in N2 gas or ambient air to compare frictional property of with and without UV irradiation. All specimens did not show superlow friction coefficient at the initial of friction tests in N2 or ambient air, however, the coatings which were UV irradiated showed superlow friction phenomena after several friction cycles and all UV irradiated specimens showed shorter running-in period than as-deposited CN_x. The average of initial several friction cycles of as-deposited CN_x showed approximately 0.04, on the other hand, in the case of 312 nm UV irradiated CN_x showed 0.01 or lower average friction coefficient. These results indicated that UV could break the C-N single bond, these broke bonds were restructured to graphitic layer.

当CN_X的最高表面更改为石墨结构时，建议进行N2气体中CN_X（碳碳）涂层的超低摩擦现象。假设紫外线（UV）可能会在射线功率超过C-N单键能时打破C-N单键，并且我们假设UV辐射可以使CN_X涂层在N2气体中无摩擦的情况下最高的表面石墨。我们进行了将CN_X涂层的液化为254、312和365 nm波长的准备，然后这些样品是在N2气体或环境空气中测试的摩擦，以比较带有和没有UV辐照的摩擦特性。所有标本在N2或环境空气中的摩擦测试初始测试中均未显示超高摩擦系数，但是，在几个摩擦周期和所有紫外线辐照样本显示后，紫外线辐照的涂层显示出超高摩擦现象存放CN_X。另一方面，在312 nm UV辐照的CN_X的情况下，AS沉积CN_X的几个摩擦周期的平均值约为0.04，平均摩擦系数为0.01或较低。这些结果表明紫外线可能会破坏C-N单键，这些破裂键被重组为石墨层。

项目成果

The effect of Ultraviolet ray irradiation on CNx coating's tribological property

紫外线照射对CNx涂层摩擦学性能的影响

• 发表时间: 2009
• 作者: 久保田章亀;栗原宗也;中西義孝;峠睦;野老山貴行
• 通讯作者: 野老山貴行

窒化炭素膜のトライボロジー特性に及ぼす紫外線照射の影響

紫外辐照对氮化碳薄膜摩擦学性能的影响

• 发表时间: 2010
• 期刊: トライボロジスト (投稿中)
• 作者: 野老山貴行;神谷真人;梅原徳次;不破良雄
• 通讯作者: 不破良雄

紫外線を用いたCNx膜極表面の改質と摩擦特性

利用紫外线和摩擦性能对CNx薄膜极性表面进行改性

• 发表时间: 2009
• 作者: 道川隆士;中崎瞬;鈴木宏正;野老山貴行
• 通讯作者: 野老山貴行

Ultraviolet ray irradiation effect on frictional property of Carbon Nitride coating

紫外线照射对氮化碳涂层摩擦性能的影响

• 发表时间: 2009
• 作者: Takayuki Tokoroyama;Makoto Kamiya;Yoshio Fuwa;Noritsugu Umeahara
• 通讯作者: Noritsugu Umeahara

Ultraviolet ray irradiation effect on frictional behavior of Carbon Nitride coating

紫外线照射对氮化碳涂层摩擦行为的影响

• 发表时间: 2010
• 作者: 道川隆士;鈴木宏正;T. Tokoroyama
• 通讯作者: T. Tokoroyama