Investigation of adhesion of PVD coatings using various approaches

Khlifi, Kaouther; Larbi, Ahmed

doi:10.1179/1743294413y.0000000150

Cited by 29 publications

(27 citation statements)

References 22 publications

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“…4 Contrary to CrN coating, the addition of Al in another binary TiN showed an improvement in the mechanical capacity of coatings. However, the mechanical performance obtained is directly related to the deposition conditions, coating compositions, and also coating structures.…”

Section: Introductionmentioning

confidence: 94%

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Study of mechanical behavior, deformation, and fracture of nano-multilayer coatings during microindentation and scratch test

et al. 2015

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Nano-multilayer PVD thin films were deposited on 100C6 (AISI 52100) steel substrate by a PVD magnetron sputtering system. The morphological and microstructural properties were evaluated by using atomic force microscopy and scanning electron microscopy. Residual stresses in all coatings were determined by XRD using the sin2w method. Microindentation and scratch tests were performed, respectively, with a Vickers hardness testing machine and scratch test. These tests were carried out on several coatings with various structures, and compositions TiN single layer, TiAlN multilayer, and TiN/TiAlN nano-multilayer. Hardness measurements were performed by using Vickers imprint using the Jonsson and Hogmark model. Critical loads were measured by scratch test. The results show that the coatings topography was dominated by domes and craters which were uniformly distributed over the surface, and all coatings showed a columnar structure. Damage mechanisms under microindentation and scratch depended on coatings structure and composition. Mechanical and structural properties control the damage behavior and the adhesion quality of coatings. The multilayer structure provides an increase in residual stress, hardness, and failure resistance and a decrease in cracks propagation and adhesion resistance.

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Section: Introductionmentioning

confidence: 94%

“…3 Many situations can be envisioned in industrial applications as we have seen in our previous work. 4 In this latter work, we studied three types of coating such as TiN single layer, TiAlN multilayer. and TiN/TiAlN nanomultilayer that belong to this family of titanium based coating.…”

Section: Introductionmentioning

confidence: 99%

Study of mechanical behavior, deformation, and fracture of nano-multilayer coatings during microindentation and scratch test

et al. 2015

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“…8 For the Cr-N coating, the cohesive and the adhesive failure critical loads are in the range of 11.46 and 32.2 N, respectively. These lower values as compared to the adhesion properties of Cr-N film 4,11,27 can be attributed to the presence of a high CrN residual stress film and a soft XC100 substrate.…”

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confidence: 88%

“…These values are in good agreement with those reported for CrN film deposited by different methods. 11,27,28 On the other hand, the Zr-N film exhibits a hardness value of 16.00 ± 0.10 GPa and Young's modulus of 270 ± 23.00 GPa. The ZrN hardness value is comparable to those reported in the literature which range from 15 to 30 GPa for bulk ZrN phase 29 and also in good agreement with that reported for films grown by PVD techniques.…”

Section: Gasmentioning

confidence: 99%

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Characterisation of R.F. magnetron sputtered Cr-N, Cr-Zr-N and Zr-N coatings

Fellah

Aissani

Samad

et al. 2017

Transactions of the IMF

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. Binary Cr-N, Zr-N and Cr-Zr-N films were synthesised using a R.F. reactive magnetron sputtering technique by co-sputtering Cr and Zr. The crystalline structure, morphology, mechanical and tribological properties of the films as a function of Zr content were characterised by X-ray diffraction, microanalysis X (WDS, EDS), X-ray photoelectron spectroscopy, scanning electron microscopy, atomic force microscopy, nanoindentation, scratch adhesion and pin-on-disc sliding wear tests. The residual stress was calculated with the Stoney formula. The Cr-Zr-N films exhibit a two-phase microstructure, containing a cubic (CrN, ZrN) with hexagonal (Cr 2 N, Zr 2 N) phases, as shown by X-ray diffraction. As the Zr content increased, a columnar and compact structure is developed with a low surface roughness. The results reveal that the mechanical and tribological properties of the films were found to depend on the Zr content and the hardness (maximum 26.3 GPa) is greatly improved in comparison with CrN and ZrN films, especially at 31 at.-% Zr. In the scratch test, the hardest film (Cr 0.18 Zr 0.31 N 0.47 ) exhibited an adhesive failure at Lc 2 = 34.3 N.

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Adhesion and thermal stability enhancement of IZO films by adding a primer layer on polycarbonate substrate

Zhang

Zhong

et al. 2015

Physica Status Solidi (a)

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A silicone‐based primer layer was developed to improve the adhesion and thermal stability of amorphous transparent indium zinc oxide (IZO) films on polycarbonate (PC). The IZO films deposited by direct current magnetron sputtering at room temperature on primer‐treated and untreated PCs were evaluated ex situ in terms of surface morphology, adhesion, optical, and electrical properties during annealing at 120 °C in air. Nano‐scratch tests indicated the adhesion of IZO films on primer‐treated substrates was superior to that on untreated PCs. This superior adhesion can be attributed to the strong Si‐O‐Si inorganic bonds abundant in the primer layer and better matches of the primer layer in the terms of thermal expansion to the IZO. Moreover, the electrical resistivity of IZO films prepared on primer‐treated PCs remained stable during the annealing treatment, whereas those of IZO films on untreated PCs presented a continuously increasing trend, which was attributed to the decrease in carrier concentration that resulted from oxygen adsorption.

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Investigation of adhesion of PVD coatings using various approaches

Cited by 29 publications

References 22 publications

Study of mechanical behavior, deformation, and fracture of nano-multilayer coatings during microindentation and scratch test

Study of mechanical behavior, deformation, and fracture of nano-multilayer coatings during microindentation and scratch test

Characterisation of R.F. magnetron sputtered Cr-N, Cr-Zr-N and Zr-N coatings

Adhesion and thermal stability enhancement of IZO films by adding a primer layer on polycarbonate substrate

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