Zobrazeno 1 - 10
of 55
pro vyhledávání: '"J. Paulitsch"'
Publikováno v:
AIP Advances, Vol 6, Iss 2, Pp 025002-025002-9 (2016)
Density Functional Theory applying the generalised gradient approximation is used to study the phase stability of (AlxCr1−x)2O3 solid solutions in the context of physical vapour deposition (PVD). Our results show that the energy of formation for th
Externí odkaz:
https://doaj.org/article/60b6b426b68646bb81682032e1578c0d
Publikováno v:
Thin Solid Films. 610:26-34
Cathodic arc evaporated homogenously grown as well as multilayered Al x Cr 1 − x N coatings were prepared using Al x Cr 1 − x targets with compositions of x = 0.7, 0.75, 0.85, and 0.9 and bias potentials of − 40, − 80, and − 120 V. The mech
Autor:
Jürgen Ramm, Paul H. Mayrhofer, Szilárd Kolozsvári, Dipl.-Ing. Dr. techn. Christian Martin Koller, J. Paulitsch, Beno Widrig, Rainer Hahn
Publikováno v:
BHM Berg- und Hüttenmännische Monatshefte. 161:325-329
The synthesis of (Al,Cr)2O3 coatings by PVD frequently results in metastable cubic structures next to the thermodynamically stable and mechanically favourable hexagonal corundum phase. By alloying small amounts of Fe to powder-metallurgically produce
Autor:
R. Hollerweger, Christian Koller, Paul H. Mayrhofer, J. Paulitsch, Richard Rachbauer, Szilárd Kolozsvári
Publikováno v:
Surface and Coatings Technology. 283:89-95
A multilayer architecture of cathodic arc evaporated Ti 1−x Al x N and reactively sputtered Ta 1−y Al y N layers is investigated in terms of thermal stability, thermo-mechanical properties, and oxidation resistance. In a recent study, Ti 1−x Al
Publikováno v:
Surface and Coatings Technology. 276:735-742
Investigations on Al-rich (Al,Cr) 2 O 3 cathodic arc evaporated thin films showed that the hexagonal phase fractions can be increased significantly by alloying with small amounts of Fe. Based on detailed transmission electron microscopy studies we sh
Publikováno v:
Surface and Coatings Technology. 266:1-9
Based on previous reports, showing that zirconium alloying to Ti 1 − x Al x N hard coatings can increase their thermal stability, we study in detail the interaction of bias potential and Al content on structure, hardness, thermal stability, and oxi
Publikováno v:
Scripta Materialia. 97:49-52
The present invention relates to a coating comprising at least one Al-Cr-Fe-O layer exhibiting hexagonal α-phase polycrystalline structure and comprising droplets, wherein the Al-Cr-Fe-O layer comprises Al-rich droplets and Cr-rich droplets, and the
Autor:
Paul H. Mayrhofer, Christian Koller, J. Paulitsch, Szilárd Kolozsvári, R. Hollerweger, C. Sabitzer, Richard Rachbauer
Publikováno v:
Surface and Coatings Technology. 259:599-607
Phase stability and oxidation resistance are main objectives when synthesising hard and protective coatings for applications requiring also high thermal stability. Even though TiAlN is a well-studied and nowadays widely used high performance coating,
Publikováno v:
Vacuum. 106:49-52
Monolithically grown as well as multilayered Al x Cr 1− x N coatings were deposited by cathodic arc evaporation using Al x Cr 1− x targets with compositions of x = 0.7, 0.75, 0.85, and 0.9. X-ray diffraction analysis revealed a single phase cubic
Publikováno v:
Surface and Coatings Technology. 240:250-254
CrN/AlN superlattices are favored as protective coatings for various production tools and automobile and aerospace components. Recently, we showed that for thicknesses below 3 nm, the AlN layers crystallize in their metastable cubic structure if the