Journal ArticleDOI
Microstructure and micromorphology of Cu/Co nanoparticles: Surface texture analysis
Ştefan Ţălu,Miroslaw Bramowicz,Slawomir Kulesza,Atefeh Ghaderi,Vali Dalouji,Shahram Solaymani,Zahra Khalaj +6 more
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In this paper, the 3D surface texture of Cu/Co thin films was analyzed by DC-Magnetron sputtering method on the silicon substrates and the results confirmed the possibility of preparing high-quality CU/Co nanoparticles via DC-MAGNETRON sputtering.Abstract:
This paper analyses the three-dimensional (3-D) surface texture of Cu/Co thin films deposited by DC-Magnetron sputtering method on the silicon substrates. The prepared Cu/Co nanoparticles were used as research materials. Three groups of samples were deposited on silicon substrates in the argon atmosphere and gradually cooled down to room temperature. The crystalline structures and elemental compositions were analyzed by X-ray diffraction (XRD) spectrum with conventional Bragg-Brentano geometry. X-ray diffraction profile indicates that Co and Cu interpenetrating crystalline structures are formed in these films. The sample surface images were recorded using atomic force microscopy (AFM) and analyzed by means of the fractal geometry. Statistical, fractal and functional surface properties of prepared samples were computed to describe major characteristics of the spatial surface texture of Cu/Co nanoparticles. Presented deposition method is a versatile, costeffective, and simple method to synthesize nano- and microstructures of Cu/Co thin films. This type of 3-D morphology allows to understand the structure/property relationships and to investigate defect-related properties of Cu/Co nanoparticles. Presented results confirm the possibility of preparing high-quality Cu/Co nanoparticles via DC-Magnetron sputtering method on silicon substrates.read more
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Book ChapterDOI
Advances in manufacturing analysis: fractal theory in modern manufacturing
Fredrick Madaraka Mwema,Fredrick Madaraka Mwema,Esther T. Akinlabi,Oluseyi Philip Oladijo,Oluseyi Philip Oladijo,Olawale S. Fatoba,Stephen A. Akinlabi,Stefan Talu +7 more
TL;DR: It is derived that fractal analysis is important in understanding the growth of structures during different manufacturing processes (and parameters) and developing fractal-like structures for enhanced performance in various engineering applications.
Journal ArticleDOI
Effect of annealing on the micromorphology and corrosion properties of Ti/SS thin films
Sahar Rezaee,Ali Arman,Stanislav Jurečka,Alireza Grayeli Korpi,Fredrick Madaraka Mwema,Fredrick Madaraka Mwema,Carlos Luna,Dinara Sobola,Dinara Sobola,Slawomir Kulesza,Reza Shakoury,Miroslaw Bramowicz,Azin Ahmadpourian +12 more
TL;DR: In this paper, the surface morphology of the films studied by atomic force microscopy (AFM) was found to exhibit specific multifractal properties depending on the annealing temperature.
Journal ArticleDOI
The effect of different laser irradiation on rugometric and microtopographic features in zirconia ceramics: Study of surface statistical metrics
Shahram Solaymani,Slawomir Kulesza,Ştefan Ţălu,Miroslaw Bramowicz,Negin Beryani Nezafat,Vali Dalouji,Sahar Rezaee,Hossein Karami,Mohammad Malekzadeh,Elham Soltanpanah Dorbidi +9 more
TL;DR: In this paper, the effects of different laser irradiation routines to the surface morphology of zirconia-based ceramics were evaluated and compared using an in-vitro study.
Journal ArticleDOI
Influence of Ti, Zr or Nb carbide adhesion layers on the adhesion, corrosion resistance and cell proliferation of titania doped hydroxyapatite to the Ti6Al4V alloy substrate, utilizable for orthopaedic implants
Alina Vladescu,Vasile Pruna,Sawomir Kulesza,Viorel Braic,Irina Titorencu,Miroslaw Bramowicz,Anna Gozdziejewska,Anca C. Parau,Cosmin Mihai Cotrut,Cosmin Mihai Cotrut,Iulian Pana,Mihaela Dinu,Mariana Braic +12 more
TL;DR: In this article, the enhancement of the adhesion between the titania doped hydroxyapatite coating and the Ti6Al4V alloy substrate by the addition of three different biocompatible carbides was studied.
Journal ArticleDOI
Employing cold atmospheric plasma (Ar, He) on Ag thin film and their influences on surface morphology and anti-bacterial activity of silver films for water treatment
TL;DR: In this paper, the effects of using different gases in cold atmospheric plasma (CAP) on surface treatment of silver thin films (100, 120nm film thickness) were investigated, He and Ar were employed and the results showed that Argon plasma radiation was more effective than helium on both surface morphology and anti-bacterial property.
References
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Book
Random Fields and Geometry
Robert J. Adler,Jonathan Taylor +1 more
TL;DR: Random Fields and Geometry as discussed by the authors is a comprehensive survey of the general theory of Gaussian random fields with a focus on geometric problems arising in the study of random fields, including continuity and boundedness, entropy and majorizing measures, Borell and Slepian inequalities.
Journal ArticleDOI
Atomic layer deposition of transition metals
TL;DR: The use of water vapour in place of hydrogen gas gives highly uniform, conformal films of metal oxides, including lanthanum oxide, and it is proposed that these ALD layers grow by a hydrogenation mechanism that should also operate during the ALD of many other metals.
Journal ArticleDOI
Comprehensive study of parameters for characterising three-dimensional surface topography: IV: Parameters for characterising spatial and hybrid properties
TL;DR: In this article, the authors described a comprehensive study of parameters used to characterize 3D surface topography in 3D. The feasibility and significance of the parameters in characterising surface topology in 3d are addressed by conducting experiments on a wide range of engineered surfaces.