Influence of the carbon incorporation on the mechanical properties of TiB2 thin films prepared by HiPIMS

Sala, Núria; Abad, M.D.; Sánchez-López, J.C.; Crugeira, F.; Ramos-Masana, A.; Colominas, Carles

doi:10.1016/j.ijrmhm.2022.105884

Cited by 6 publications

(1 citation statement)

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“…However, the preparation of metal nitride hard coatings often requires high temperatures. TiB 2 exhibits substantially high hardness and satisfactory wear resistance [14][15][16][17] and is used for modifying WS 2 films [18,19]. Duan [18] et al prepared a hard WS 2 /TiB 2 self-lubricating composite thin film by co-sputtering a WS 2 target with a TiB 2 target to mix the soft phase of WS 2 with the hard phase of TiB 2 .…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of Hard TiB2 Thin Films Prepared at Low Temperatures Using HiPIMS

Yu,

Zhang,

Ying

et al. 2024

Coatings

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Magnetron-sputtered WS2 composite thin films are solid lubricants with excellent performances. However, the low hardness of the WS2 thin films necessitates the further improvement of their wear resistance. For this purpose, an effective strategy is to alternately deposit or code posit WS2 and a hard phase, such as TiB2, to form hard lubricant thin films. Herein, a TiB2 thin film was prepared under the same conditions as those used for depositing the WS2 thin film with a dense structure and excellent tribological properties. Because of the high deposition energy of high-power impulse magnetron sputtering (HiPIMS), the TiB2 thin film possesses a dense structure and leather-like flat surface (hardness = 24.17 GPa). The friction coefficient of the film under different loads ranges between 0.6 and 0.8. The wear rate of the thin film increases with load, mainly because of fatigue wear and abrasive wear. Under high loads, obvious furrow-like wear marks are observed. At different sliding frequencies, except 8 Hz, the friction coefficient of the film ranges from 0.6 to 0.8. The main wear mode is fatigue wear, particularly at increasing sliding frequencies. Although the film possesses a relatively high friction coefficient, its wear resistance is excellent (minimum wear rate = 1.96 × 10−6 mm3/(N·m)).

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Section: Introductionmentioning

confidence: 99%