Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Constantin Politis"'
Autor:
Petros Katsoufis, Maria Katsaiti, Christos Mourelas, Tatiana Santos Andrade, Vassilios Dracopoulos, Constantin Politis, George Avgouropoulos, Panagiotis Lianos
Publikováno v:
Energies, Vol 13, Iss 6, p 1447 (2020)
A thin film aluminum-air battery has been constructed using a commercial grade Al-6061 plate as anode electrode, an air-breathing carbon cloth carrying an electrocatalyst as cathode electrode, and a thin porous paper soaked with aqueous KOH as electr
Externí odkaz:
https://doaj.org/article/61b801768f8c46d0a80aead582e23eff
Publikováno v:
MRS Communications. 11:825-830
Two Fe–Ni alloys were prepared using the arc melting method: Fe50Ni50 and Fe64Ni36. The samples after annealing were reheated up to 650°C and cooled at a very slow rate to approach thermodynamic equilibrium. The coarse grains of the as prepared sa
Autor:
E. Th. Papaioannou, Panagiotis Poulopoulos, N. Kanistras, Dimitrios I. Anyfantis, Alexandros Barnasas, A. Conca, Constantin Politis, D. Trachylis
Publikováno v:
SPIN. 10
The influence of mild thermal annealing and nickel addition on the magnetic properties of Co–CoO multilayers is investigated. Co–CoO and CoNi–CoNiO multilayers were fabricated by radio-frequency magnetron sputtering and natural oxidation. Their
Autor:
Odyseas Venetsanos, V. Karoutsos, Dimitris Geralis, Constantin Politis, Panagiotis Poulopoulos
Publikováno v:
Journal of Nano Research. 45:218-228
Three different Fe-C alloys were prepared in vacuum using the arc melting method: hypereutectoid (1.4% C), eutectoid (0.76% C) and hypoeutectoid (0.4% C). Unlike commercial steels, which they always contain Mn and other impurities, our samples were p
Autor:
Barnasas, Alexandros, Diamantopoulos, Nikolaos C., Anyfantis, Dimitrios I., Bouropoulos, Nikolaos, Constantin, Politis, Poulopoulos, Panagiotis
Publikováno v:
Nano Hybrids and Composites; June 2022, Vol. 36 Issue: 1 p1-12, 12p
Publikováno v:
Quantum Matter. 6:1-3
Autor:
Constantin Politis, Efstathios I. Meletis, Panagiotis Poulopoulos, Thomas Brandel, Wolfram Schommers, Karl-Heinz Schmidmeier
Publikováno v:
Quantum Matter. 4:98-103
Autor:
S. Grammatikopoulos, Efstathios I. Meletis, A. Vlachos, D. Trachylis, M. J. Velgakis, P.S. Ioannou, Panagiotis Poulopoulos, V. Karoutsos, Nikolaos Bebelos, Constantin Politis
Publikováno v:
Journal of Nano Research. 30:68-77
Nickel films are grown by radio frequency magnetron sputtering on Corning glass, polyimide foils and on the native oxide of Si (100) wafers at low (1x10-3 mbar) and relatively high (2.5x10-2 mbar) Argon pressure at 100 °C. The base pressure of the h
Autor:
Mihail M. Sigalas, Spyridon Grammatikopoulos, A. G. Chronis, Constantin Politis, D. M. Maratos, A. Stamatelatos, S. P. Lysandrou, Panagiotis Poulopoulos, V. Karoutsos, D. Trachylis
Publikováno v:
Journal of Applied Physics. 125:023106
Self-assembled nanoparticles were formed after annealing ultrathin Ag films, which were grown on glass and quartz by direct current magnetron sputtering, in a furnace in air at 420 °C, 500 °C, or 600 °C. Intense localized surface plasmon resonance
Autor:
Constantin Politis, D. Trachylis, S. Grammatikopoulos, W. Schommers, Efstathios I. Meletis, Spiridon D. Pappas, M. J. Velgakis, Panagiotis Poulopoulos
Publikováno v:
Journal of Nano Research. 25:61-66
Cu and Ni from CuNi metallic targets (composition 20-80 and 46-54 at.%) are deposited on Corning glass, quartz and the native oxide of Si (100) wafers by direct current magnetron sputtering in a high vacuum chamber (base pressure 5 x 10-5 mbar). The