Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Ludo Froyen"'
Publikováno v:
Revista de Metalurgia, Vol 36, Iss 5, Pp 375-384 (2000)
Este trabajo estudia el proceso de fabricación de composites Al reforzado con fibras de carbono mediante la técnica ''Squeeze Casting'', estableciendo las variables para obtener un producto aceptable que tenga poca cantidad de Al4C3 en la interfase
Externí odkaz:
https://doaj.org/article/67ec001c1684427fa8fc95baeec3c9d5
Autor:
Bernard, Van Eerdenbrugh, Sofie, Vercruysse, A, Martens Johan, Jan, Vermant, Ludo, Froyen, Jan, Van Humbeeck, Guy, Van den Mooter, Patrick, Augustijns
Publikováno v:
In European Journal of Pharmaceutics and Biopharmaceutics 2008 70(2):590-596
Autor:
Bernd Kempf, Jef Vleugels, Nachiketa Ray, Ludo Froyen, Timo Mutzel, Gunther Wiehl, Kim Vanmeensel, Frank Heringhaus
Publikováno v:
Materials & Design, Vol 121, Iss, Pp 262-271 (2017)
Ag-WC (60-40 wt%) contact materials based on three WC particle size powders were doped with 0.1 wt% Ni and processed by an appropriate powder pre-treatment followed by spark plasma sintering (SPS). The contacts produced were already bonded to a coppe
Autor:
Ludo Froyen, Bernd Kempf, Frank Heringhaus, Timo Mutzel, Jef Vleugels, Kim Vanmeensel, Nachiketa Ray
Publikováno v:
Journal of Alloys and Compounds. 670:188-197
In this work, Ni was used as an additive in Ag-WC (60–40 wt.%) metal matrix composites employed as electrical contacts. Increasing the Ni content from 1 to 3 wt.% resulted in an increase in the mean electrical contact resistance ( R c ) from ∼2 t
Autor:
Wei Zhang, Henry J. Snaith, Tamara Merckx, Weiming Qiu, Paul Heremans, Lucija Rakocevic, Jef Poortmans, Ulrich W. Paetzold, Manoj Jaysankar, C. A. Masse de la Huerta, David Cheyns, Robert Gehlhaar, Ludo Froyen
Publikováno v:
Energy & Environmental Science. 9:484-489
We report on a perovskite solar module with an aperture area of 4 cm2 and geometrical fill factor of 91%. The module exhibits an aperture area power conversion efficiency (PCE) of 13.6% from a current–voltage scan and 12.6% after 5 min of maximum p
Publikováno v:
Materials & Design, Vol 85, Iss, Pp 412-422 (2015)
In this work, theoretically dense (> 99%) composites of Ag and WC have been prepared by press–sintering–infiltration for making electrical contacts used as an arc-resistant material in a model switching device. Composites with varying silver cont
Autor:
Ludo Froyen, Ulrich W. Paetzold, Weiming Qiu, Marie Buffiere, David Cheyns, Paul Heremans, Guy Brammertz
Publikováno v:
Organic Electronics. 26:30-35
Solution processed CH 3 NH 3 PbI x Cl 3– x based planar heterojunction perovskite solar cells with power conversion efficiency (PCE) above 14% are reported. The devices benefit from a phenyl-C 61 -butyric acid methyl ester (PCBM)/ZnO double electro
Autor:
Paul Heremans, Weimin Zhang, Jeffrey G. Tait, Vladimir Smirnov, Bert Conings, Ulrich W. Paetzold, Hans-Gerd Boyen, Christian B. Nielsen, Iain McCulloch, Weiming Qiu, Ludo Froyen, David Cheyns, Robert Gehlhaar
Publikováno v:
Journal of Materials Chemistry A. 3:22824-22829
The TiO2 layer made by electron beam (e-beam) induced evaporation is demonstrated as an electron transport layer (ETL) in high efficiency planar junction perovskite solar cells. The temperature of the substrate and the thickness of the TiO2 layer can
Autor:
Bin Zhou, Ludo Froyen
Publikováno v:
Materials Science Forum. :28-33
A special type of divorced eutectic growth mode (symbiotic growth) in a ternary Al-Mn-Si alloy, triggered by addition of titanium boride (TiB2) has been studied under both ground and microgravity conditions. During directional solidification, α (AlM
Autor:
Ludo Froyen, Bin Zhou
Publikováno v:
Metallography, Microstructure, and Analysis. 3:164-173
Quaternary eutectic presents far more complexity than binary and ternary eutectics, and its understanding can offer fundamental knowledge of the microstructure formation in a multi-component system. Accurate characterization of the quaternary eutecti