Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Sofia Gaiaschi"'
Autor:
Krzysztof Rokosz, Tadeusz Hryniewicz, Sofia Gaiaschi, Patrick Chapon, Steinar Raaen, Łukasz Dudek, Winfried Malorny
Publikováno v:
Tehnički Vjesnik, Vol 26, Iss 1, Pp 128-134 (2019)
In the present paper, coatings obtained on CP Titanium Grade 2 samples by Plasma Electrolytic Oxidation (PEO) in electrolyte containing concentrated phosphoric acid H3PO4 with copper nitrate Cu(NO3)2∙3H2O, are studied with Scanning Electron Microsc
Externí odkaz:
https://doaj.org/article/4f4660e478f14c3ab5e63f5bceb36f40
Autor:
Krzysztof Rokosz, Tadeusz Hryniewicz, Sofia Gaiaschi, Patrick Chapon, Steinar Raaen, Winfried Malorny, Dalibor Matýsek, Kornel Pietrzak
Publikováno v:
Micromachines, Vol 9, Iss 7, p 332 (2018)
Coatings with developed surface stereometry, being based on a porous system, may be obtained by plasma electrolytic oxidation, PEO (micro arc oxidation, MAO). In this paper, we present novel porous coatings, which may be used, e.g., in micromachine
Externí odkaz:
https://doaj.org/article/6f3ecda936c1452d8571c050cd3a3e3f
Autor:
Krzysztof Rokosz, Tadeusz Hryniewicz, Wojciech Kacalak, Katarzyna Tandecka, Steinar Raaen, Sofia Gaiaschi, Patrick Chapon, Winfried Malorny, Dalibor Matýsek, Łukasz Dudek, Kornel Pietrzak
Publikováno v:
Metals, Vol 8, Iss 6, p 411 (2018)
In the paper, the effect of voltage increase (from 500 VDC up to 650 VDC) on the structure and chemical composition of the porous coating on titanium made by Plasma Electrolytic Oxidation is presented. Phosphates-based coatings enriched with calcium,
Externí odkaz:
https://doaj.org/article/ba52137433ce493b88887585f1dc3bda
Autor:
Krzysztof Rokosz, Tadeusz Hryniewicz, Sofia Gaiaschi, Patrick Chapon, Steinar Raaen, Kornel Pietrzak, Winfried Malorny, João Salvador Fernandes
Publikováno v:
Metals, Vol 8, Iss 2, p 112 (2018)
The aim of the paper is to study and determine the effect of voltage increasing from 500 up to 650 VDC on chemical and electrochemical properties of the obtained porous coatings with plasma electrolytic oxidation (PEO) processes, known also as micro
Externí odkaz:
https://doaj.org/article/8321cb3e651b448299827391191bd59a
Autor:
Krzysztof Rokosz, Tadeusz Hryniewicz, Sofia Gaiaschi, Patrick Chapon, Steinar Raaen, Kornel Pietrzak, Winfried Malorny
Publikováno v:
Metals, Vol 7, Iss 9, p 354 (2017)
In the paper, Scanning Electron Microscopy (SEM), Energy-dispersive X-ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS), and Glow Discharge Optical Emission Spectroscopy (GDOES) analyses of calcium- and phosphorus-enriched coatings obtai
Externí odkaz:
https://doaj.org/article/fd6c8c7227c5483baab9c5ba2e6563c5
Autor:
Patrick Chapon, Krzysztof Rokosz, Andrzej Zieliński, Steinar Raaen, Sofia Gaiaschi, Michał Bartmański, Łukasz Pawłowski, Aleksandra Mielewczyk-Gryń, Gabriel Strugała
Publikováno v:
Materials, Vol 14, Iss 1638, p 1638 (2021)
Materials
Volume 14
Issue 7
Materials
Volume 14
Issue 7
In this work, nanohydroxyapatite coatings with nanosilver and nanocopper have been fabricated and studied. The presented results concern coatings with a chemical composition that has never been proposed before. The present research aims to characteri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7542efc4983cfc6b70c1740f302835e
https://www.mdpi.com/1996-1944/14/7/1638
https://www.mdpi.com/1996-1944/14/7/1638
Autor:
Daniela Predoi, Simona Liliana Iconaru, Mikael Motelica-Heino, Mihai Valentin Predoi, Sofia Gaiaschi, Krzysztof Rokosz, Patrick Chapon, Steinar Raaen
Publikováno v:
Coatings
Coatings, MDPI, 2021, 11 (4), pp.464. ⟨10.3390/coatings11040464⟩
Volume 11
Issue 4
Coatings, Vol 11, Iss 464, p 464 (2021)
Coatings, MDPI, 2021, 11 (4), pp.464. ⟨10.3390/coatings11040464⟩
Volume 11
Issue 4
Coatings, Vol 11, Iss 464, p 464 (2021)
In this study, the cerium-doped hydroxyapatite (Ca10−xCex(PO4)6(OH)2 with xCe = 0.1, 10Ce-HAp) coatings obtained by the spin coating method were presented for the first time. The stability of the 10Ce-HAp suspension particles used in the preparatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d45bcaab2d65fd3e3650b8ac904ababe
https://hdl.handle.net/11250/3018511
https://hdl.handle.net/11250/3018511
Autor:
Patrick Chapon, Mihai Valentin Predoi, Daniela Predoi, Catalin Negrila, Krzysztof Rokosz, M. L. Badea, Steinar Raaen, Sofia Gaiaschi, A. Costescu, Alina-Mihaela Prodan, Simona Liliana Iconaru, A. Groza
Publikováno v:
Coatings
Volume 10
Issue 6
Coatings, Vol 10, Iss 516, p 516 (2020)
Volume 10
Issue 6
Coatings, Vol 10, Iss 516, p 516 (2020)
Antibacterial cerium-doped hydroxyapatite (Ce-HAp) layers have been researched sparingly in recent years. The Ce-HAp powder, Ca10&minus
xCex(PO4)6(OH)2 with xCe = 0.05, was obtained by an adapted chemical co-precipitation method at room temperat
xCex(PO4)6(OH)2 with xCe = 0.05, was obtained by an adapted chemical co-precipitation method at room temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88c9c54fe3dfaad93cfae228d71b5d20
Autor:
Kornel Pietrzak, Katarzyna Tandecka, Wojciech Kacalak, Łukasz Dudek, Steinar Raaen, Patrick Chapon, Sofia Gaiaschi, Dalibor Matýsek, Winfried Malorny, Krzysztof Rokosz, Tadeusz Hryniewicz
Publikováno v:
Materials
Materials, Vol 13, Iss 6, p 1295 (2020)
Volume 13
Issue 6
Materials, Vol 13, Iss 6, p 1295 (2020)
Volume 13
Issue 6
The present paper covers the possible ways to fabricate advanced porous coatings that are enriched in copper on a titanium substrate through Direct Current Plasma Electrolytic Oxidation (DC-PEO) with voltage control, in electrolytes made of concentra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbd0a04173161944a76abc073d3c2e04
https://pubmed.ncbi.nlm.nih.gov/32182998
https://pubmed.ncbi.nlm.nih.gov/32182998
Autor:
Krzysztof Rokosz, Anna Iwanek, Winfried Malorny, Wojciech Kacalak, Patrick Chapon, Tadeusz Hryniewicz, Ewa Czerwińska, Kornel Pietrzak, Dalibor Matýsek, Łukasz Dudek, Steinar Raaen, Sofia Gaiaschi, Katarzyna Tandecka
Publikováno v:
Materials
Materials, Vol 13, Iss 4, p 828 (2020)
Volume 13
Issue 4
Materials, Vol 13, Iss 4, p 828 (2020)
Volume 13
Issue 4
To fabricate porous copper coatings on titanium, we used the process of plasma electrolytic oxidation (PEO) with voltage control. For all experiments, the three-phase step-up transformer with six-diode Graetz bridge was used. The voltage and the amou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be428bf46d68be490e3d93190745ab69
http://europepmc.org/articles/PMC7078615
http://europepmc.org/articles/PMC7078615