H
Helmut Riedl
Researcher at Vienna University of Technology
Publications - 77
Citations - 1326
Helmut Riedl is an academic researcher from Vienna University of Technology. The author has contributed to research in topics: Thin film & Oxide. The author has an hindex of 17, co-authored 57 publications receiving 840 citations. Previous affiliations of Helmut Riedl include University of Leoben.
Papers
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Ab initio inspired design of ternary boride thin films.
V. Moraes,Helmut Riedl,Christoph Fuger,Peter Polcik,Hamid Bolvardi,David Holec,Paul H. Mayrhofer +6 more
TL;DR: Investigations on the brittle-ductile behavior of the various diborides reveal, that the metastable structures are more ductile than their stable counterparts (WB2, TcB2, etc.).
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Origin of high temperature oxidation resistance of Ti–Al–Ta–N coatings
R. Hollerweger,Helmut Riedl,J. Paulitsch,M. Arndt,Richard Rachbauer,Peter Polcik,Sophie Primig,Paul H. Mayrhofer +7 more
TL;DR: In this article, the authors have developed arc-evaporated Ti 1−x−y Al x Ta y N coatings with various Al (x = 0.50−0.65) and Ta (y= 0.00-0.15) contents.
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Thermal stability and oxidation resistance of sputtered TiAlCrN hard coatings
TL;DR: In this paper, the thermal stability and oxidation resistance of two single-phase face-centered cubic (c) coatings with hardness values between 32.0 and 33.9 GPa were studied.
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Microstructure and piezoelectric response of YxAl1−xN thin films
P. M. Mayrhofer,Helmut Riedl,Holger Euchner,Michael Stöger-Pollach,Paul H. Mayrhofer,Achim Bittner,Ulrich Schmid +6 more
TL;DR: In this article, transition metal doping of aluminium nitride (AlN) type thin films was recently employed to increase the piezoelectric constants for application in micro electromechanical systems.
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Solid solution hardening of vacancy stabilized TixW1−xB2
Holger Euchner,Paul H. Mayrhofer,Helmut Riedl,F.F. Klimashin,Andreas Limbeck,Peter Polcik,Szilárd Kolozsvári +6 more
TL;DR: In this paper, a combined experimental and theoretical investigation of sputter deposited thin films in the ternary system Ti 1− x W x B 2 was presented, and the effect of vacancies on stabilization and mechanical properties of the AlB 2 structure type was discussed, using ab initio simulations.