Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Jürgen Ramm"'
Autor:
Ahmed Bahr, Oskar Beck, Thomas Glechner, Alexander Grimmer, Tomasz Wojcik, Philip Kutrowatz, Jürgen Ramm, Oliver Hunold, Szilard Kolozsvári, Peter Polcik, Eleni Ntemou, Daniel Primetzhofer, Helmut Riedl
Publikováno v:
Materials Research Letters, Vol 11, Iss 9, Pp 733-741 (2023)
To overcome the limited oxidation resistance of the emerging class of transition metal borides, we suggest within this study novel quaternary diborides, Ti-TM-Si-B2 ± z (TM = Ta, Mo), achieving the compromise between excellent oxidation resistance a
Externí odkaz:
https://doaj.org/article/8f09850005d34bfebaffc99b59209ea5
Autor:
Daniele Scopece, Max Döbeli, Daniele Passerone, Xavier Maeder, Antonia Neels, Beno Widrig, Alex Dommann, Ulrich Müller, Jürgen Ramm
Publikováno v:
Science and Technology of Advanced Materials, Vol 17, Iss 1, Pp 20-28 (2016)
The pre-treatment of substrate surfaces prior to deposition is important for the adhesion of physical vapour deposition coatings. This work investigates Si surfaces after the bombardment by energetic Cr ions which are created in cathodic arc discharg
Externí odkaz:
https://doaj.org/article/06a68bf8090f4ad6bb718c357e2329e3
Improved Corrosion Resistance of Cathodic Arc Evaporated Al0.7cr0.3-Xvxn Coatings in Nacl-Rich Media
Autor:
Oliver Ernst Hudak, Philip Kutrowatz, Tomasz Wojcik, Eleni Ntemou, Daniel Primetzhofer, Lin Shang, Jürgen Ramm, Oliver Hunold, Szilard Kolozsvári, Peter Polcik, Helmut Riedl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34bf48e7ec911be0e999af4305519a24
https://doi.org/10.2139/ssrn.4399350
https://doi.org/10.2139/ssrn.4399350
Publikováno v:
Vacuum. 213:112098
Publikováno v:
Vacuum. 163:1-9
This study reports on the temperature-induced, ambient-air-exposure related structural and morphological evolution of various Al Cr and Al Cr O thin films prepared by cathodic arc evaporation with 20 sccm Ar, 50 sccm O2, or 100 sccm O2 per active sou
Autor:
Xavier Maeder, Jürgen Ramm, Mikhail N. Polyakov, Malko Gindrat, Antonia Neels, Helmut Rudigier, Johannes Ast, Alex Dommann, Beno Widrig, Max Döbeli, Zoltán Balogh-Michels
Publikováno v:
Surface and Coatings Technology. 360:329-334
Cathodic arc evaporation was applied to form a layer stack on a Ni-based superalloy single crystalline substrate in a single in-situ vacuum deposition process. The initial layer was deposited using a target with the same nominal composition as the su
Publikováno v:
Surface and Coatings Technology. 358:934-941
The structural evolution of cathodic arc evaporated Al-Cr-O coatings with hugely different Al, Cr, and O contents was investigated by in-situ XRD measurements upon annealing in oxygen up to 1200 °C. Different chemical compositions are achieved by ar
Publikováno v:
Surface and Coatings Technology. 356:64-71
(AlxCr1−x)δ(O1−yNy)ξ coatings were arc evaporated using Al0.70Cr0.30 cathodes and different nitrogen-to-oxygen gas flow ratios and investigated with respect to their phase evolution and thermal stability. The utilization of specific nitrogen-to
Publikováno v:
Surface and Coatings Technology. 352:213-221
The thermal stability of cathodic arc evaporated Al0.70Cr0.30-based AlxCr1−xN/(AlxCr1−x)2O3 multilayer coatings and their monolithic constituents was investigated by combining differential scanning calorimetry and thermal gravimetric analysis wit
Autor:
Christian Koller, Jürgen Ramm, Szilárd Kolozsvári, A. Kirnbauer, P.H. Mayrhofer, P. Kutrowatz, V. Dalbauer
Publikováno v:
Surface and Coatings Technology. 349:103-110
Fe-alloyed intermetallic Al–Cr coatings as well as substoichiometric oxides (with respect to M 2 O 3 stoichiometry) thereof were synthesised by reactive arc evaporation in order to investigate the impact of Fe and the oxygen flow rate during deposi