Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Alexandros E. Karantzalis"'
Autor:
Katerina Gkougkousi, Alexandros E. Karantzalis, Pantelis G. Nikolakopoulos, Konstantinos G. Dassios
Publikováno v:
Materials, Vol 17, Iss 5, p 1215 (2024)
Superlubricity, the tribological regime where the coefficient of friction between two sliding surfaces almost vanishes, is currently being investigated as a viable route towards the energy efficiency envisioned by major long-term strategies for a sus
Externí odkaz:
https://doaj.org/article/093720c46d7e42ed991cb6137cf8e681
Autor:
Elias A. Ananiadis, Alexandros E. Karantzalis, Athanasios K. Sfikas, Emmanuel Georgatis, Theodore E. Matikas
Publikováno v:
Materials, Vol 16, Iss 15, p 5491 (2023)
Novel aluminium matrix composites have been fabricated using a powder metallurgy route with reinforcement phase particles of high entropy alloy (HEA) consisting of third transition metals. These new composites are studied as far as their microstructu
Externí odkaz:
https://doaj.org/article/15708c9dc299489dbf8799c93421a5d4
Autor:
Athanasios K. Sfikas, Sergio Gonzalez, Angeliki G. Lekatou, Spyros Kamnis, Alexandros E. Karantzalis
Publikováno v:
Metals, Vol 12, Iss 7, p 1092 (2022)
Al-Co alloys is an emerging category of metallic materials with promising properties and potential application in various demanding environments. Over the years, different manufacturing techniques have been employed to fabricate Al-Co alloys, spannin
Externí odkaz:
https://doaj.org/article/a8216b73f7a642ce95f45ce27fbd30aa
Autor:
Elias Ananiadis, Konstantinos T. Argyris, Theodore E. Matikas, Athanasios K. Sfikas, Alexandros E. Karantzalis
Publikováno v:
Applied Sciences, Vol 11, Iss 3, p 1300 (2021)
Novel aluminium matrix composites reinforced by MoTaNbVW refractory high-entropy alloy (HEA) particulates have been fabricated by powder metallurgy. The microstructure of the produced composites has been studied and the corrosion behaviour assessed i
Externí odkaz:
https://doaj.org/article/8e8c10d34d624299ade8337ae4289f8d
Publikováno v:
Metals, Vol 6, Iss 3, p 46 (2016)
Hypereutectic Al-Co alloys of various Co contents (7–20 weight % (wt.%) Co) were prepared by vacuum arc melting, aiming at investigating the influence of the cobalt content on the microstructure and corrosion behavior. Quite uniform and directional
Externí odkaz:
https://doaj.org/article/8370c176e70a401f9d8298b1adcd596c
Autor:
Athanasios K. Sfikas, Spyros Kamnis, Martin C. H. Tse, Katerina A. Christofidou, Sergio Gonzalez, Alexandros E. Karantzalis, Emmanuel Georgatis
Publikováno v:
Coatings; Volume 13; Issue 6; Pages: 1004
The aim of this work is to improve the understanding of the effect of the cooling rate on the microstructure of high-entropy alloys, with a focus on high-entropy alloy coatings, by using a combined computational and experimental validation approach.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::563ee29409de230d7fa2769079527e9b
https://doi.org/10.3390/coatings13061004
https://doi.org/10.3390/coatings13061004
Autor:
Alexandros E. Karantzalis, Anthoula Poulia, Spyros Kamnis, Athanasios Sfikas, Anastasios Fotsis, Emmanuel Georgatis
Publikováno v:
Alloys; Volume 1; Issue 1; Pages: 70-92
The classic Cantor (FeCoCrMnNi) isoatomic high entropy alloy was modified by separate additions of Mo and Nb in an effort to optimize its mechanical properties and sliding wear response. It was found that the introduction of Mo and Nb modified the si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8954f3b6881951a6ec0e69ab22efb5b3
https://nrl.northumbria.ac.uk/id/eprint/49153/1/alloys-01-00006-v2.pdf
https://nrl.northumbria.ac.uk/id/eprint/49153/1/alloys-01-00006-v2.pdf
Autor:
Alexandros E. Karantzalis, Rumit R. Shah, Nizar Al-Zoubi, Ioannis Nikolakakis, Ioannis Partheniadis
Publikováno v:
Chemical Engineering Research and Design. 156:64-75
Hot-melt extrusion (HME) is increasingly applied in the pharmaceutical industry for the formulation of solid dispersions of drugs with improved solubility and release. However, tableting of milled extrudates may present problems due to adverse thermo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b034fa1b69d43e22f5165f6096b53f77
https://doi.org/10.1016/j.cherd.2020.01.035
https://doi.org/10.1016/j.cherd.2020.01.035
Publikováno v:
Sensors and Actuators B: Chemical. 281:273-280
We report on the straightforward preparation of gold nanoparticles (AuNPs) through a direct metal-to-substrate electric discharge at ambient conditions at 1.2 kV between the source metal (gold) and low-cost graphite screen-printed electrodes (SPEs).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9295c298a488eeb713b0bf2f8ad6a04
https://doi.org/10.1016/j.snb.2018.10.112
https://doi.org/10.1016/j.snb.2018.10.112
Autor:
Konstantinos T. Argyris, Athanasios K. Sfikas, Alexandros E. Karantzalis, Theodore E. Matikas, Elias Ananiadis
Publikováno v:
Applied Sciences
Volume 11
Issue 3
Applied Sciences, Vol 11, Iss 1300, p 1300 (2021)
Volume 11
Issue 3
Applied Sciences, Vol 11, Iss 1300, p 1300 (2021)
Copyright: © 2021 by the authors. Novel aluminium matrix composites reinforced by MoTaNbVW refractory high-entropy alloy (HEA) particulates have been fabricated by powder metallurgy. The microstructure of the produced composites has been studied and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::057a925b059e5a3a78afddf5d4a7e83a
https://nrl.northumbria.ac.uk/id/eprint/45590/1/applsci-11-01300-v2.pdf
https://nrl.northumbria.ac.uk/id/eprint/45590/1/applsci-11-01300-v2.pdf