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つぉん ぺいほん CONG Peihong |
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中国 |
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博士(工学) |
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工博 第 59 号 |
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平成 14年 3月 23日 |
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学位規則第4条第1項該当 課程博士 |
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工学研究科 物質工学専攻 | ||
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Relationship between Tribochemical Reactions and Tribological Characteristics of Ceramics under Fluorine-containing Gases (含フッ素化合物雰囲気におけるセラミックスのトライボ化学反応とトライボロジー特性に関する研究) |
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Advanced engineering ceramics have good prospects for tribological applications because they possess high thermal stability, chemical inertness and very good wear resistance. In order to use the excellent properties of ceramic materials fully, it demands to understand the quantitative relationship between the surface chemical characteristics and the tribological characteristics. In this thesis, a tribometry connected with a surface spectroscopy (X-ray Photoelectron Spectroscopy, XPS) is used. The apparatus permits friction tests to be carried out in a well-controlled atmosphere and the surfaces to be analyzed after testing without exposure to air. The lubricating effects of hydrofluorocarbon gases, and the role of the tribochemical products on the tribological properties of ceramics have been investigated. The following main conclusions have been obtained.
As above, this study has fundamentally investigated the relationship between the tribochemical products and the tribological characteristics under fluorine-containing gases, and has established the chemical wear map of ceramic under reactive environment. This research is important and necessary for understanding the tribochemistry of ceramic materials, and will save much time and effort that now goes into trial-and-error testing. |