Electro-tribological properties of diamond like carbon coatings

Braceras, I.; Ibáñez, Iñigo; Domínguez-Meister, Santiago; Velasco, Xabier; Brizuela, Marta; Garmendia, Iñaki

doi:10.1007/s40544-019-0286-2

Cited by 16 publications

(5 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides, lubricants which mainly include solid lubricants and liquid lubricants are widely used for lubrication. There are many advanced solid lubricants such as molybdenum disulfide (MoS 2 ) film [7], diamond-like coating [8], entangled carbon nanotube (CNT) film [9], and polymer material [10,11]. However, their tribological properties are directly influenced by the friction environment, and they are prone to being a wear-out failure after serving for a long time.…”

Section: Frictionmentioning

confidence: 99%

Nanolubricant additives: A review

et al. 2020

View full text Add to dashboard Cite

Using nanoadditives in lubricants is one of the most effective ways to control friction and wear, which is of great significance for energy conservation, emission reduction, and environmental protection. With the scientific and technological development, great advances have been made in nanolubricant additives in the scientific research and industrial applications. This review summarizes the categories of nanolubricant additives and illustrates the tribological properties of these additives. Based on the component elements of nanomaterials, nanolubricant additives can be divided into three types: nanometal-based, nanocarbon-based, and nanocomposite-based additives. The dispersion stabilities of additives in lubricants are also discussed in the review systematically. Various affecting factors and effective dispersion methods have been investigated in detail. Moreover, the review summarizes the lubrication mechanisms of nanolubricant additives including tribofilm formation, micro-bearing effect, self-repair performance, and synergistic effect. In addition, the challenges and prospects of nanolubricant additives are proposed, which guides the design and synthesis of novel additives with significant lubrication and antiwear properties in the future.

show abstract

Section: Frictionmentioning

confidence: 99%

Nanolubricant additives: A review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Therefore, the interface will exhibit complex wear behavior, which requires electrical contact materials to have excellent friction and wear resistance, low contact resistance, and good corrosion resistance. Research has shown that preparing appropriate coatings on the surface of metal materials can significantly improve the electrical contact performance of workpieces, such as carbon based coatings, nitride based coatings, oxide based coatings, etc [6][7][8][9]. Among them, titanium nitride (TiN) coatings are widely used, with advantages such as high hardness, good toughness and chemical stability, as well as strong adhesion to the substrate [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Current carrying tribological properties of multi arc ion plated titanium nitride doped silver coating

Hao,

Xia,

2024

Mater. Res. Express

View full text Add to dashboard Cite

Sliding electrical contact materials play a crucial role in the transmission and conversion of electrical energy, but due to various factors such as force, electricity, and heat, the interface exhibits complex wear behavior. A single solid or liquid lubrication system can no longer meet the growing performance requirements of current carrying tribology. In this study, a TiN-Ag coating was prepared using multi arc ion plating technology, and a solid-liquid composite lubrication system was formed with ionic liquid and polyurea grease, respectively. Through current carrying friction and wear tests, their tribological properties, electrical contact resistance(ECR) values, and stability were tested, and compared with the results obtained during dry friction. The coating and worn surfaces were analyzed using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The results indicated that compared with dry friction, TiN-Ag coatings lubricated with ionic liquids and polyurea grease showed higher friction reduction, wear resistance, and conductivity, especially the synergistic effect between ionic liquids and coatings is prominent. The behavior of ionic liquids under voltage was analyzed, and it was found that ionic liquids formed a physical adsorption film composed of a mixture of anions and cations on the worn surface. The ordered layered structure improved the tribological performance of the system.

show abstract

“…Diamond-like carbon (DLC) films are well known for their superior mechanical properties, chemical inertness, and especially excellent self-lubricating performance [1,2], and they have been widely accepted as one of the most promising self-lubricating protective layers in mechanical systems [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Recently, it was reported that sufficient hydrogen incorporation can make DLC films capable of achieving near-frictionless sliding state with an extremely low friction coefficient (below 0.01) and negligible wear when rubbed in dry inert atmosphere such as nitrogen, carbon dioxide, and argon [3,[20][21][22][23][24][25][26][27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Ion energy-induced nanoclustering structure in a-C:H film for achieving robust superlubricity in vacuum

Chen

Zhang

et al. 2022

Friction

View full text Add to dashboard Cite

Hydrogenated amorphous carbon (a-C:H) films are capable of providing excellent superlubricating properties, which have great potential serving as self-lubricating protective layer for mechanical systems in extreme working conditions. However, it is still a huge challenge to develop a-C:H films capable of achieving robust superlubricity state in vacuum. The main obstacle derives from the lack of knowledge on the influencing mechanism of deposition parameters on the films bonding structure and its relation to their self-lubrication performance. Aiming at finding the optimized deposition energy and revealing its influencing mechanism on superlubricity, a series of highly-hydrogenated a-C:H films were synthesized with appropriate ion energy, and systematic tribological experiments and structural characterization were conducted. The results highlight the pivotal role of ion energy on film composition, nanoclustering structure, and bonding state, which determine mechanical properties of highly-hydrogenated a-C:H films and surface passivation ability and hence their superlubricity performance in vacuum. The optimized superlubricity performance with the lowest friction coefficient of 0.006 coupled with the lowest wear rate emerges when the carbon ion energy is just beyond the penetration threshold of subplantation. The combined growth process of surface chemisorption and subsurface implantation is the key for a-C:H films to acquire stiff nanoclustering network and high volume of hydrogen incorporation, which enables a robust near-frictionless sliding surface. These findings can provide a guidance towards a more effective manipulation of self-lubricating a-C:H films for space application.

show abstract

Electro-tribological properties of diamond like carbon coatings

Cited by 16 publications

References 43 publications

Nanolubricant additives: A review

Nanolubricant additives: A review

Current carrying tribological properties of multi arc ion plated titanium nitride doped silver coating

Ion energy-induced nanoclustering structure in a-C:H film for achieving robust superlubricity in vacuum

Contact Info

Product

Resources

About