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Insight into the Mechanisms of Nitride Films with Excellent Hardness and Lubricating Performance: A Review
Xinmeng Wu1, Yaohong Jiang1, Tianhao Wu1
1Department of Material and Science, Jiangsu University of Science and Technology, Zhenjiang 212000, China.
Nanomaterials (Basel, Switzerland)
|August 12, 2023
Summary
This review details a film design strategy for transition metal nitride (TMN) films, exploring mechanisms for enhancing their hardness and lubrication. It covers strengthening and lubricating effects for advanced material applications.
Area of Science:
- Materials Science
- Tribology
- Nanotechnology
Background:
- Transition metal nitride (TMN) films are crucial low-dimensional materials known for exceptional hardness and lubrication.
- Their applications span industries, transportation, and aerospace due to versatile properties.
Purpose of the Study:
- To introduce a film design strategy for TMNs.
- To review strengthening and lubricating mechanisms of nitride films.
- To provide insights into current research and identify future research gaps.
Main Methods:
- Review of existing literature on TMN film design.
- Detailed illumination of strengthening mechanisms.
- Summarization of lubricating mechanisms.
Main Results:
- Identified key aspects of a film design strategy influencing structure, performance, composition, and constitution.
- Elucidated six strengthening mechanisms: solid solution, grain size, secondary phase, stress/stress field, template, and valence electron concentration effects.
- Summarized five lubricating mechanisms: easy-shear nature, tribo-chemical reactions, lubricious fluorides, textured contact surface, and synergistic effect.
Conclusions:
- A comprehensive understanding of TMN strengthening and lubrication mechanisms is essential for material development.
- The presented strategy and mechanisms offer a foundation for students and researchers.
- Further research is needed to explore current progress and identify research gaps in nitride films.
