Research Progress of Lubricant Oxide Films in a Wide Temperature Range

High-temperature lubrication is widely used in modern industrial fields such as aviation, aerospace, nuclear, metallurgy and metal processing. The service temperature of corresponding mechanical equipment is getting higher and higher, and the problems of high-temperature lubrication and wear failure are becoming more and more prominent.This article reviews the latest research progress of binary and ternary oxide coatings with high-temperature solid lubricant application potential, discusses the structure, chemical and electrical properties of these oxides and their tribology, and focuses on the main types of solid lubricating materials. The correlation of performance and its lubrication mechanism are analyzed.This review also discusses the industrial applications of these coatings and predicts that lubricating coatings might develop in the direction of self-lubricating and self-healing smart lubricating materials.