Zobrazeno 1 - 10 of 52 pro vyhledávání: '"Rossen Yankov"'
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Economic Surface Treatment of Ti-Alloys to Improve their Resistance against Environmental High Temperature Attack
Autor: Rossen Yankov, Michael Schütze, Andreas Kolitsch, Alexander Donchev
Publikováno v: Key Engineering Materials 551(2013), 109-113
High temperature Ti-alloys are usually sophisticated and hence expensive. To allow the use of cheaper alloys at elevated temperatures an economic and easy to apply procedure was developed to improve their high temperature capability. The treatment co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f46a82189ec51f8ba65734f373bad41
https://doi.org/10.4028/www.scientific.net/kem.551.109
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3
Improvement of the Resistance of Titanium Aluminides to Environmental Embrittlement
Autor: Patrick J. Masset, Laurent Bortolotto, Friedriech Bleicher, Michael Schütze, Jonathan Paul, David Rafaja, Cécile Langlade, Rossen Yankov, Florian Pyczak, Gerhard K. Wolf, Georg Geiger, Bernadeta Pelic, Andreas Kolitsch, Peter Schumacher
Publikováno v: ECS Transactions 50(2013)44, 127-141
Pacific Rim Meeting on Electrochemical and Solid-State Science (PRIME 2012), 07.-12.10.2012, Honolulu, Hawaii, USA
Titanium aluminide alloys have recently been applied for first time as structural alloys in low-pressure turbine blades by an engine manufacturer. Indeed, they exhibit equivalent mechanical properties under service conditions as nickel-based superall
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79e46a7084689b089e3d3bfebd15c68c
https://doi.org/10.1149/05044.0127ecst
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5
Enhancing the High Temperature Capability of Ti-Alloys
Autor: Alexander Donchev, Michael Schütze, Andreas Kolitsch, Rossen Yankov
Publikováno v: European Congress and Exhibition on on Advanced Materials and Processes (EUROMAT 2011), 12.-15.09.2011, Montpellier, France
Steel Research International 83(2012)10, 938-942
Titanium is a widely used structural material for applications below approximately 500 degrees C but right now it cannot be used at higher temperatures. Titanium forms a fast growing rutile layer under these conditions. Furthermore enhanced oxygen up
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f66c4b5cbcf3abfc4a7027625f979948
https://doi.org/10.1002/srin.201100281
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6
Optimization of the Fluorine Effect for Improving the Oxidation Resistance of Tial-Alloys
Autor: Andreas Kolitsch, Alexander Donchev, Michael Schütze, Rossen Yankov
Publikováno v: Materials Science Forum. :1061-1065
The oxidation resistance of TiAl-alloys can be improved drastically by treating the surface of the components with small amounts of fluorine. The oxidation mechanism is changed. Hence, the formation of a fast growing mixed oxide scale on untreated al
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77831abc16ad2086c857e39a3fdd314e
https://doi.org/10.4028/www.scientific.net/msf.706-709.1061
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7
Combined Al- plus F-treatment of Ti-alloys for improved behaviour at elevated temperatures
Autor: Michael Schütze, Rossen Yankov, Andreas Kolitsch, Alexander Donchev
Publikováno v: Materials and Corrosion. 62:695-698
Titanium is a widely used structural material because of its low specific weight, good mechanical properties and excellent corrosion resistance at ambient temperature. As a result of increased oxidation at elevated temperatures and environmental embr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba9b670f92d7774369ab2ee1513bc30f
https://doi.org/10.1002/maco.201005870
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8
Comparison of Fluorination Treatments to Improve the High Temperature Oxidation Resistance of TiAl Alloys in SO2 Containing Environments
Autor: Patrick J. Masset, Michael Schütze, Andreas Kolitsch, Rossen Yankov
Publikováno v: Materials Science Forum. :1374-1378
Surfaces of titanium aluminides were treated by fluorine either physically using Plasma Immersion Ion Implantation (PI³) or chemically with a F-based polymer. By controlling the fluorination parameters, both treatments improve the oxidation resistan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f3e4e93235ff5bfb95b3ec08b1bdc32
https://doi.org/10.4028/www.scientific.net/msf.638-642.1374
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9
Temperature-Dependent PL Intensity in FLA-Synthesized and Hydrogen-Modified Silica Layers with Silicon Nanocrystals
Autor: Rossen Yankov, Victor Stuchinsky, Grigory Kachurin, S. G. Cherkova, Vladimir A. Volodin
Publikováno v: ECS Transactions. 16:105-111
The temperature dependence of the photoluminescence intensity I in flash-lamp-anneal-synthesized silica layers with small silicon nanocrystals (nc's) and in similar layers heat-treated in hydrogen- (H-) rich ambient was used to examine how H treatmen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c97e4d382b19f542a87c675e0276e87
https://doi.org/10.1149/1.3108359
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10
Reactive plasma immersion ion implantation for surface passivation
Autor: N. Shevchenko, Rossen Yankov, Manfred F. Maitz, E. Richter, Wolfhard Möller, A. Rogozin, Michael Schütze, Alexander Donchev
Publikováno v: Surface & Coatings Technology 201(2007), 6752-6758
Plasma immersion ion implantation (PIII) using halogen or oxygen plasmas has been employed for the surface passivation of advanced alloys with a view to their applications for high-temperature oxidation protection and in medicine. Special devices hav
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c726f0b14e74ad2762868a8f59f54f84
https://doi.org/10.1016/j.surfcoat.2006.09.010
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