Mechanical properties and fractal analysis of the surface texture of sputtered hydroxyapatite coatings

Bramowicz, Mirosław; Braic, Laurentiu; Azem, Funda Ak; Kulesza, Sławomir; Birlik, Işıl; Vlădescu, Alina

doi:10.1016/j.apsusc.2016.04.077

Cited by 50 publications

(28 citation statements)

References 54 publications

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“…The surface topography of the samples under study was characterized using statistical, fractal and functional parameters derived from AFM images containing sample height data. Appropriate numerical procedure was described elsewhere (Bramowicz et al, ; Kulesza & Bramowicz, ), and was successfully applied for spatial characterization of a variety of nanostructured samples, such as: Fe and Au nanoparticles in carbon films (Ţălu, Bramowicz, Kulesza, Shafiekhani, et al, 2015; Ţălu, Bramowicz, Kulesza, et al, 2016), metallic nanoflakes (Ţălu, Solaymani, Bramowicz, et al, ), ZnO films (Ţălu, Bramowicz, Kulesza, et al, 2016) etc.…”

Section: Methodsmentioning

confidence: 99%

Fractal features of carbon–nickel composite thin films

Ţălu

Bramowicz

Kulesza

et al. 2016

Microscopy Res & Technique

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This work analyses the three-dimensional (3-D) surface texture of carbon-nickel (C-Ni) films grown by radio frequency (RF) magnetron co-sputtering on glass substrates. The C-Ni thin films were deposited under different deposition times, from 50 to 600 s, at room temperature. Atomic force microscopy was employed to characterize the 3-D surface texture data in connection with the statistical, and fractal analyses. It has been found that up to 180 s the sputtering occurs in more metal content mode and in greater than 180 s it occurs in more non-metal content mode.This behavior demonstrated a strong link between the structural and morphological properties of C-Ni composite films and facilitates a deeper understanding of structure/property relationships and surface defects in prepared samples. Furthermore, these findings can be applied to research on the mechanisms to prepare and control high-quality C-Ni films.carbon-nickel composite thin films, fractal analysis, RF magnetron co-sputtering, three-dimensional surface micromorphology wileyonlinelibrary.com/journal/jemt

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Section: Methodsmentioning

confidence: 99%

Fractal features of carbon–nickel composite thin films

Ţălu

Bramowicz

Kulesza

et al. 2016

Microscopy Res & Technique

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“…Beyond the threshold τc referred to as the corner frequency, the allometric scaling breaks down and the SF asymptotically approaches 2Sq 2 value. Our previous studies demonstrated that the corner frequency is found similar to average decay length, and hence to average grain diameter [28,29]. As a quick characterization tool, fractal analysis proved to be useful in studies of morphology and mechanical properties of various surface structures upon heat treatment [30][31][32], nanomechanical processing [33,34], in contact with body tissues and fluids [35][36][37][38].…”

Section: Surface Texture Analysis From Afmmentioning

confidence: 96%

Micromorphology analysis of sputtered indium tin oxide fabricated with variable ambient combinations

et al. 2018

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“…The optimum Ca/P ratio was reported to be in the range of 1.67-1.76 [4]. At the low deposition temperature an amorphous coating structure was obtained; the increase of the deposition temperature leads to the Ca/P ratio change in the range of 1.41-1.69 [43]. It was demonstrated that the Ca/P ratio achieved the value of 1.63-1.69 for samples prepared at temperatures between 600 and 800°C.…”

Section: Composition Of Rf-magnetron Sputtering Of Cap Coatingmentioning

confidence: 98%

“…The surface morphology of the coatings to be shown strongly depends on the substrate temperature. Bramowicz et al [43] performed the deposition on silicon substrates with the temperature varied in the range of 400-800°C (Figure 3). The sample deposited at 400°C was observed to exhibit some circular cavities.…”

Section: Morphology Of Rf-magnetron Sputtering Of Cap Coatingmentioning

confidence: 99%

Radio Frequency Magnetron Sputter Deposition as a Tool for Surface Modification of Medical Implants

Surmenev¹,

Vlădescu²,

Surmeneva³

et al. 2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

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The resent advances in radio frequency (RF)-magnetron sputtering of hydroxyapatite films are reviewed and challenges posed. The principles underlying RF-magnetron sputtering used to prepare calcium phosphate-based, mainly hydroxyapatite coatings, are discussed in this chapter. The fundamental characteristic of the RF-magnetron sputtering is an energy input into the growing film. In order to tailor the film properties, one has to adjust the energy input into the substrate depending on the desired film properties. The effect of different deposition control parameters, such as deposition time, substrate temperature, and substrate biasing on the hydroxyapatite (HA) film properties is discussed.

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Mechanical properties and fractal analysis of the surface texture of sputtered hydroxyapatite coatings

Cited by 50 publications

References 54 publications

Fractal features of carbon–nickel composite thin films

Fractal features of carbon–nickel composite thin films

Micromorphology analysis of sputtered indium tin oxide fabricated with variable ambient combinations

Radio Frequency Magnetron Sputter Deposition as a Tool for Surface Modification of Medical Implants

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