Nanoindentation on diamond-like carbon and alumina coatings

Xu, Zhi-Hui; Rowcliffe, D. J.

doi:10.1016/s0257-8972(02)00364-x

Cited by 51 publications

(16 citation statements)

References 31 publications

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“…Surprisingly, the Young's modulus decreases with increasing indentation depth. This is in agreement with previous results [24,25]. Since these results are corrected for the pile-up effect, this is real materials behaviour.…”

Section: Separation Of the 'True' Hardness Of The Tgosupporting

confidence: 93%

Determination of mechanical properties of thermally grown oxide on Fecralloy by nano-indentation

Zhao

Xiao

2007

Thin Solid Films

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Section: Separation Of the 'True' Hardness Of The Tgosupporting

confidence: 93%

Determination of mechanical properties of thermally grown oxide on Fecralloy by nano-indentation

Zhao

Xiao

2007

Thin Solid Films

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“…Nanoindentation is often employed in conjunction with a number of other surface characterization techniques to investigate the cracking and deformation of DLC coatings [4][5][6]. Based on these studies, the discontinuities in the loaddisplacement curves of DLC coatings on silicon substrates have been attributed to the formation of through-thickness cracks and lateral cracks in the coating [4,5] rather than deformation of the Si substrate.…”

Section: Introductionmentioning

confidence: 99%

Deformation behaviour of DLC coatings on (111) silicon substrates

et al. 2007

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“…3͑b͔͒, leading to a sudden advance in indentation displacement. 14,15 Further loading did not induce any additional initiation or propagation of indentation cracks in the TiC interlayer. The unloading curve of the TiC interlayer, which was different from those of the diamond coating and Ti, exhibited a "pushing back" at the lower part of the unloading curve.…”

Section: Experimental Observations Of Parallel Confined Microcracksmentioning

confidence: 93%

Enhance diamond coating adhesion by oriented interlayer microcracking

Guo

Xiao

et al. 2009

Journal of Applied Physics

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In this paper, we report a microcrack toughening mechanism for enhancing the adhesion of diamond coating. The oriented microcracks were formed within the TiC interlayer to dissipate strain energy and accommodate deformation via the crack opening-closing mechanism, thus enhancing the coating/substrate interfacial toughness. The delamination of diamond coating was effectively prevented when the parallel microcracks were confined within the interlayer and arrested at interfaces of coating/interlayer/substrate. Density functional theory calculations revealed that the highly anisotropic fracture strength of the TiC phase energetically favors crack initiation and propagation along (100) planes only, which are 54.7° away from the interface. These microcracks are constrained inside the interlayer by the two strong interfaces in the substrate/interlayer/coating system. The new microcrack toughening mechanism with these combined features has a wide application to enhance the adhesion of thin-film coatings.

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Nanoindentation on diamond-like carbon and alumina coatings

Cited by 51 publications

References 31 publications

Determination of mechanical properties of thermally grown oxide on Fecralloy by nano-indentation

Determination of mechanical properties of thermally grown oxide on Fecralloy by nano-indentation

Deformation behaviour of DLC coatings on (111) silicon substrates

Enhance diamond coating adhesion by oriented interlayer microcracking

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