Buscar
Mostrando ítems 1-10 de 97
Artículo
Influence of spacer layer morphology on the exchange-bias properties of reactively sputtered Co ∕ Ag multilayers
(American Physical Society, 2007-09-25)
We have studied the magnetic properties of [Ag(tAg)/Co(1.2nm)]60 multilayers grown in an oxygen atmosphere. Partial oxidation of the Co layers results in the appearance of tAg dependent exchange-bias properties. A strong ...
Artículo
Optical and electrical properties of the transparent conductor SrVO3 without long-range crystalline order
(AIP Publishing, 2018-01-08)
It has been shown recently that the perovskite oxide SrVO3 is a transparent conductor with optical and electrical properties outreaching those of the most used material indium tin oxide (ITO). These properties, observed ...
Artículo
Formation of antireflection Zn/ZnO core–shell nano-pyramidal arrays by O2 + ion bombardment of Zn surfaces
(Royal Society of Chemistry, 2017-08-25)
ZnO is probably one of the most studied oxides since ZnO nanostructures are a very rich family of nanomaterials with a broad variety of technological applications. Although several chemical techniques offer the possibility ...
Artículo
On the effect of thin film growth mechanisms on the specular reflectance of aluminum thin films deposited via filtered cathodic vacuum arc
(MDPI, 2018)
The optimisation of the specular reflectance of solar collectors is a key parameter to increase the global yield of concentrated solar power (CSP) plants. In this work, the influence of filtered cathodic vacuum arc deposition ...
Artículo
Biocompatible Silver-containing a-C:H and a-C coatings: A Comparative Study
(SpirngerLink, 2007-04-18)
Hydrogenated diamond-like-carbon (a-C:H) and hydrogen-free amorphous carbon (a-C) coatings are known to be biocompatible and have good chemical inertness. For this reason, both of these materials are strong candidates to ...
Artículo
Determination of the Optical Constants of Gold Nanoparticles from Thin-Film Spectra
(American Chemical Society, 2015-04-06)
We determine the optical properties of nanocomposites comprising gold nanoparticles embedded in a titania matrix using spectroscopic ellipsometry. We then apply the spectral representation formalism due to Bergman, to ...
Artículo
In situ mechanical, temperature and gas exposure treatments of materials combined with variable energy positron beam techniques
(ScienceDirect, 2002-06-21)
An overview is given of the extension of the Delft variable energy positron (VEP) beam facility with equipment for in situ heating, cooling, 4-point bending, hydrogen permeation and gas ad- and absorption of bulk materials, ...
Artículo
Long-term high temperature oxidation of CrAl(Y)N coatings in steam atmosphere
(ScienceDirect, 2014-03)
The oxidation resistance of CrAl(Y)N coatings deposited by reactive magnetron sputtering on P92 steel substrates was tested at 650 C in 100% steam atmosphere up to 2000 h of oxidation. Mass gain measurements and characterisation ...
Artículo
Morphotropic Phase Boundary in Solution-Derived (Bi0.5Na0.5)1 – xBaxTiO3 Thin Films: Part I Crystalline Structure and Compositional Depth Profile
(The American Ceramic Society, 2014-04)
In this work, ferroelectric (Bi0.5Na0.5)1 – xBaxTiO3 thin films were fabricated by chemical solution deposition (CSD) with compositions x = 0.050–0.150. Stoichiometric thin films (here-inafter BNBT) and others containing ...
Artículo
Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity
(ScienceDirect, 2015-10-01)
Nowadays, with the increase of elderly population and related health problems, knee and hip joint prosthesis are being widely used worldwide. However, failure of these invasive devices occurs in a high percentage thus ...