Chemical State and Structural Evolution of Metal-Containing Additives in Engine Oil Under Different Operating Conditions
使用条件に依存したエンジンオイル中金属系添加剤の化学状態および構造変化
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20266410
- Paper/Info type
- Proceedings (Autumn)
No.176-26
- Pages
- 1-2(Total 2 p)
- Date of publication
- Oct 2026
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2026 JSAE Annual Congress (Autumn)
Detailed Information
| Author(J) | 1) 国須 正洋, 2) 李 茜, 3) 村田 大輔, 4) 中島 沙知, 5) 冨永 達哉 |
|---|---|
| Author(E) | 1) Masahiro Kunisu, 2) Xi Li, 3) Daisuke Murata, 4) Sachi Nakashima, 5) Tatsuya Tominaga |
| Affiliation(J) | 1) 東レリサーチセンター, 2) 東レリサーチセンター, 3) 東レリサーチセンター, 4) 東レリサーチセンター, 5) 東レリサーチセンター |
| Affiliation(E) | 1) Toray Research Center, 2) Toray Research Center, 3) Toray Research Center, 4) Toray Research Center, 5) Toray Research Center |
| Abstract(J) | エンジンオイル中金属系添加剤について，新品油，通常走行後油および条件差を与えた試料を対象に，X線吸収分光などの方法により，金属元素の結合状態や化学状態を評価した．使用条件に応じた化学状態および局所構造の差異が確認され，元素種によりリン酸塩化の傾向や水和イオンへの分解の進行挙動が示唆された． Translation |
| Abstract(E) | X-ray absorption fine structure (XAFS) analysis was applied to metal-containing additives in engine oil for fresh oil, oil after normal operation, and samples subjected to different conditions. Differences in chemical states and local structures depending on usage conditions were identified for the target elements. Under specific conditions, an increase in components exhibiting ionic-like behavior, possibly associated with coordination by water molecules, was observed. These results indicate that the local chemical environment of metal-containing additives can vary significantly with operating conditions. |
