High-Temperature Superlubricity Performance of h-BN Coating on the Textured Inconel X750 Alloy

Zeng, Qunfeng

doi:10.3390/lubricants11060258

Cited by 10 publications

(5 citation statements)

References 33 publications

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“…In addition to the aforementioned properties, h -BN materials possess other important attributes. A low friction coefficient and excellent lubrication at high temperatures, make h -BN an outstanding high-temperature lubricant. , The Young’s modulus of high-quality h -BN in 1 to 9 layers ranges from 0.856 to 0.865 TPa, with a fracture strength of 68.0 to 70.5 GPa . Few-layer h -BN exhibits comparable strength to monolayer h -BN, unlike graphene, which experiences a significant decrease in modulus and strength as thickness increases .…”

Section: Properties and Advantages Of Hexagonal Boron Nitridementioning

confidence: 99%

Methods for Preparation of Hexagonal Boron Nitride Nanomaterials

Yang,

Dai,

Jiang

et al. 2024

Chem. Mater.

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Hexagonal boron nitride (h-BN) represents a promising inorganic compound, garnering widespread attention for its unique combination of electrical insulation, thermal conductivity, lightweight nature, and chemical stability. The past decades have witnessed the advent of diverse h-BN nanostructures, which preserve the intrinsic superior attributes of h-BN while endowing these materials with unique nanoscale properties. This paper aims to provide a comprehensive review of the synthesis methods for h-BN nanomaterials across different dimensions. Furthermore, it outlines the applications of h-BN nanomaterials in energy storage, thermal management, catalysis, and other fields, and concludes with a discussion of challenges and prospects. It is conceived as a foundational guide aimed at the practical production of h-BN nanomaterials.

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Section: Properties and Advantages Of Hexagonal Boron Nitridementioning

confidence: 99%

Methods for Preparation of Hexagonal Boron Nitride Nanomaterials

Yang,

Dai,

Jiang

et al. 2024

Chem. Mater.

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“…The h-BN coating on the surface of steel exhibits high-temperature superlubricity at 800 • C, and the mechanism is due to the formation of γ-Fe 2 O 3 /h-BN composite material using friction chemistry. Meanwhile, he also studied the high-temperature superlubricity of the h-BN coating on a textured InconelX750 alloy [81]. Chen et al prepared SiC/h-BN composites and studied the tribological properties of the composites from room temperature to 900 • C, which showed excellent lubrication properties with a coefficient of 0.30 above 800 • C [82].…”

Section: High-temperature Superlubricitymentioning

confidence: 99%

A Systematic Review of the Recent Advances in Superlubricity Research

Zeng,

Zhang

2023

Coatings

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Friction and the wear caused by friction will not only lead to energy dissipation, but will also cause damage to the function of mechanical parts, affecting the precision and lifespan of mechanical devices. Superlubricity as an ideal state of zero friction has become a hot research topic in recent years. There have been many reviews on the concept, origin, and research progress of superlubricity, but, among them, there are more presentations on the research status of solid superlubricity and liquid superlubricity; however, the theoretical summarization of solid–liquid combined superlubricity and high-temperature superlubricity is still imperfect and lacks a systematic and comprehensive review. The mechanism of superlubricity is not explicitly presented in many reviews, which are clearly summarized in this paper. This paper introduces superlubricity from friction, and then introduces the origin of superlubricity, and presents the research progress on superlubricityby separating it into in four categories: liquid superlubricity, solid superlubricity, solid–liquid combined superlubricity, and high-temperature superlubricity. By analyzing the superlubricity system, the mechanism of realizing various types of superlubricity, such as incommensurability, hydration, and oxidation, is summarized. Based on the research progress of superlubricity, the development prospects, opportunities, and challenges of superlubricity in the future are discussed.

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“…In an aero engine, the clearance between the blade case is a key factor that affects its efficiency [6][7][8]. In order to minimize the clearance, the casing is coated with a sacrificial abradable seal [9][10][11][12]. During engine operation, the blade tip and the sealing coating are subject to high-speed scraping.…”

Section: Introductionmentioning

confidence: 99%

Study on High-Temperature, Ultra-Low Wear Behaviors of Ti6Al4V Alloy with Thermal Oxidation Treatment

Zeng,

Sun,

Pang

et al. 2024

Coatings

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Thermal oxidation (TO) is a simple and economical way to enhance the wear resistance of the Ti6Al4V alloy. The TO temperature has a very important effect on the tribological properties of the TiO2 layer formed. However, the impact of the oxidation temperature on the high-temperature tribological behavior of a TO-treated Ti6Al4V alloy is not clear. Therefore, the Ti6Al4V alloy was oxidized at 400 °C, 600 °C, and 700 °C for 36 h, and the sliding friction experiments were conducted at room temperature (RT) and 400 °C with a Si3N4 ball as the counter body to comparatively study the effect of the oxidation temperature on the high-temperature friction behavior of the TO-treated Ti6Al4V alloy. The results show that the TO treatment can effectively improve the wear resistance of the samples at both room and high temperatures. Among them, the oxidation-treated samples at 700 °C show the best wear resistance, with a reduction of 92.6% at high temperatures; the amount of wear loss at room temperature was so small that it was almost incalculable. At room temperature, the friction surface formed uneven agglomerate formations, resulting in an elevated coefficient of friction (CoF) compared to the untreated samples. At a high temperature, however, the CoF is reduced compared to the untreated samples due to the formation of a homogeneous transfer film in the wear area that is caused by the interaction of Si3N4 and oxygen.

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High-Temperature Superlubricity Performance of h-BN Coating on the Textured Inconel X750 Alloy

Cited by 10 publications

References 33 publications

Methods for Preparation of Hexagonal Boron Nitride Nanomaterials

Methods for Preparation of Hexagonal Boron Nitride Nanomaterials

A Systematic Review of the Recent Advances in Superlubricity Research

Study on High-Temperature, Ultra-Low Wear Behaviors of Ti6Al4V Alloy with Thermal Oxidation Treatment

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