No.1006 2009 最近20年のトライボロジー研究 −基礎と応用− |
| カテゴリー | 寄稿 |
|---|---|
| 筆者 | 日本大学工学部 機械工学科 教授 工学博士 加藤康司 |
| 要旨 | The representative research results over the past 20 years at my laboratory are introduced as follows, (1) Static friction coefficient changes by the shape of contact area. (2) Different wear modes are classified in one diagram as Wear Map by introducing indexes of severity of contact. (3) Repeated sliding friction at self-mated SiC and Si3N4 in water generates friction coefficient below 0.01. Micro texture on contact surfaces generates friction coefficient in the order of 0.0001. (4) Tribo-coating of indium on the surface of SUS440C disk generates friction coefficient below 0.05 against Si3N4 pin in high vacuum. (5) N2 gas supply at the contacts of Si3N4/CNx and CNx/CNx in air generates friction coefficient in the order of 0.001. (6) Tribolayer formed by tribo-chemical reaction changes friction and wear drastically. |
| キーワード | micro-slip, wear map, water lubrication, tribo-coating, N2-gas lubrication, tribolayer |
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