潤滑油中におけるDLC膜同士の摩擦により発生した摩耗粒子の分析手法

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  • Analysis Method of Wear Particles from DLC Sliding Against Itself Under Oil Lubrication
  • ジュンカツユチュウ ニ オケル DLCマク ドウシ ノ マサツ ニ ヨリ ハッセイ シタ マモウ リュウシ ノ ブンセキ シュホウ

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<p>To suggest wear condition of DLC/DLC contact from wear particles diagnosis, wear particles generated from DLC/DLC contact under lubrication, we leached after using oil to collect these particles from lubrication by PTFE filtration, then, we clarified a possibility of severe wear condition classification. DLC coated cylinder and DLC coated disk were slid under different lubrication temperature (25, 80 and 120ºC). The wear particles on PTFE filter was observed by optical microscope and scanning electron microscope to measure total wear particle area (mm2). The specific wear rate (mm3/Nm) of DLC coating on cylinder was calculated by wear scar width by geometrically, then, we calculated average wear particle thickness (nm) from specific wear rate, area, normal load and sliding distance. From the results, DLC wear particles were roughly divided two types as black color particle with 1-10 µm diameter and thin transparent particle with 10-15 µm diameter. In the case of 120ºC lubrication condition, Raman analysis to wear particle indicated less graphitization rather than 25 and 80ºC. Furthermore, wear particle thickness at 120ºC indicated large as much as 25 and 80ºC.</p>

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  • トライボロジスト

    トライボロジスト 59 (7), 429-436, 2014

    一般社団法人 日本トライボロジー学会

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