Effect of surface roughness on nanoindentation test of thin films

Jiang, Wu-Gui; Su, Jianjun; Feng, Xi‐Qiao

doi:10.1016/j.engfracmech.2008.06.016

Cited by 174 publications

(82 citation statements)

References 30 publications

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“…The surface roughness has a significant influence on both hardness and elastic modulus of coatings determined from the nanoindentation tests. In order to rule out the influence of surface quality, the indentation depth should be much greater than the size of surface roughness (Jiang et al, 2008). The maximum penetration depth achieved at the end of the loading is smaller for the Ni-TiO2 nanocomposite coating, suggesting that the TiO2 nanoparticles play a reinforcing role, increasing the hardness of the nanocomposite coating.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Ni–TiO2 Nanocomposite Coatings Produced by Electrodeposition Technique

et al. 2016

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In this paper, Ni-TiO2 nanocomposite coatings with different sizes of TiO2 nanoparticles were successfully prepared by electrodeposition process from a nickel electrolyte in which the TiO2 nanoparticles were suspended. The influence of relevant deposition parameters on the nanocomposite coating characteristics was discussed. X-ray diffractometer has been applied in order to investigate the phase structure of the nanocomposite coatings. The surface morphology of nanocomposite coatings was characterized by a scanning electron microscopy equipped with an energy dispersive spectroscopy. The electrodeposited nanocomposite coatings obtained at different deposition parameters were evaluated for their mechanical and corrosive properties. Obtained results show that the size of TiO2 nanoparticles and applied current density during deposition process has a direct effect on mechanical and corrosive properties of nanocomposite coatings. Increasing current density and smaller nanoparticle size has affirmative effect on mechanical properties, whereas corrosion resistance of nanocomposite coatings deposited at 3 A dm −2 current density are higher than the coatings prepared at higher current density values.

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Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Ni–TiO2 Nanocomposite Coatings Produced by Electrodeposition Technique

et al. 2016

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“…34,35 From Fig. 2 it can be seen that curves for hydrated glasses show increased noise, especially at low indentation depths.…”

Section: Surface Deterioration Effect Of Surface Roughness On Accuramentioning

confidence: 99%

Surface hydration and nanoindentation of silicate glasses

Tadjiev

Hand

2010

Journal of Non-Crystalline Solids

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The near-surface mechanical properties of glasses and differences in mechanical behaviour between high and low durability silicate glasses are investigated. Nanoindentation is used to examine the effect of hydration on the nearsurface mechanical properties of silicate glasses with varying degrees of chemical durability. It is shown that hydration has little if any effect on high durability glasses even at long immersion times, whereas in low durable glasses hydration reduces the near-surface mechanical properties significantly and the thickness of hydrated layer may exceed the indentation depth. In addition an attempt is made to measure the thickness and mechanical properties of hydrated layer in low durability glasses where influence of the substrate is negligible. : 61.43.Fs; 81.05.Kf PACSs

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“…Besides the experimental observations, computer simulations have greatly contributed to the investigation of the response of materials during nanoindentation. The common modeling methods are finite element [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41], crystal plasticity [42][43][44][45][46][47][48][49][50], discrete dislocation dynamics [51][52][53][54][55][56][57][58][59][60][61][62], the quasicontinuum method [63][64][65][66][67][68][69][70][71][72][73]…”

Section: Introductionmentioning

confidence: 99%

Review of Nanoindentation Size Effect: Experiments and Atomistic Simulation

2017

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Nanoindentation is a well-stablished experiment to study the mechanical properties of materials at the small length scales of micro and nano. Unlike the conventional indentation experiments, the nanoindentation response of the material depends on the corresponding length scales, such as indentation depth, which is commonly termed the size effect. In the current work, first, the conventional experimental observations and theoretical models of the size effect during nanoindentation are reviewed in the case of crystalline metals, which are the focus of the current work. Next, the recent advancements in the visualization of the dislocation structure during the nanoindentation experiment is discussed, and the observed underlying mechanisms of the size effect are addressed. Finally, the recent computer simulations using molecular dynamics are reviewed as a powerful tool to investigate the nanoindentation experiment and its governing mechanisms of the size effect.

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Effect of surface roughness on nanoindentation test of thin films

Cited by 174 publications

References 30 publications

Preparation and Characterization of Ni–TiO2 Nanocomposite Coatings Produced by Electrodeposition Technique

Preparation and Characterization of Ni–TiO2 Nanocomposite Coatings Produced by Electrodeposition Technique

Surface hydration and nanoindentation of silicate glasses

Review of Nanoindentation Size Effect: Experiments and Atomistic Simulation

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