Indentation behaviour of 'soft film on hard substrate' composite system type

Lamovec, Jelena; Jović, V.; Mladenović, Ivana; Stojanović, Dušica; Kojović, Aleksandar; Radojević, Vesna

doi:10.5937/zasmat1503269l

Cited by 2 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The copper coatings on Si substrates can be considered as a "soft film on a hard substrate" type of composite system [24,45]. Composite and coating hardness values obtained at different frequencies, different amplitudes of the current density and different coating thicknesses were measured and calculated.…”

Section: The Composite and The Coating Hardnessmentioning

confidence: 99%

Morphology, Structure and Mechanical Properties of Copper Coatings Electrodeposited by Pulsating Current (PC) Regime on Si(111)

Mladenović

Lamovec

Radović

et al. 2020

Metals

View full text Add to dashboard Cite

Copper electrodeposition on (111)-oriented Si substrate was performed by the pulsating current (PC) regime at various average current densities in the range of 15-70 mA·cm −2 , obtained by varying either the frequency (30, 50, 80 and 100 Hz for the current density amplitude of 100 mA·cm −2 ) or the current density amplitude (120 and 140 mA·cm −2 at 100 Hz). The produced Cu coatings were examined by SEM, AFM and XRD techniques. The morphology of the coatings changed from those with large grains to fine-grained and globular, while the crystal structure changed from the strong (220) to the strong (111) preferred orientation by increasing the average current density. The mechanical characteristics of coatings were examined using Vickers micro-indentation tests, applying the Chicot-Lesage (C-L) composite hardness model for the analysis of microhardness. The maximum microhardness was obtained for the Cu coating produced at an average current density of 50 mA·cm −2 , with a current density amplitude of 100 mA·cm −2 and a frequency of 100 Hz. This copper coating was fine-grained and showed the smallest roughness in relation to the other coatings, and it was obtained in the mixed activation-diffusion control between the end of the effect of the activation control and the beginning of the dominant effect of diffusion control.

show abstract

Section: The Composite and The Coating Hardnessmentioning

confidence: 99%