Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Werner Triftshäuser"'
Autor:
Gottfried Kögel, Werner Triftshäuser, S. Rödling, H.-J. Gudladt, Jürgen Bär, Peter Sperr, Werner Egger
Publikováno v:
Materials Science and Engineering: A. :317-320
Defect distributions close to cracks created by monotonic and fatigue tests in the Al–Mg–Si alloy Al 6013 have been investigated by positron lifetime studies. The defect structure close to the crack surface was studied at sub-μm resolution with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac079836bee207b115214a257f550487
https://doi.org/10.1016/j.msea.2004.02.070
https://doi.org/10.1016/j.msea.2004.02.070
Autor:
B. Straßer, Gottfried Kögel, Werner Triftshäuser, Klaus Schreckenbach, Peter Sperr, R. Repper, Christoph Hugenschmidt
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 221:160-164
Monoenergetic positron beams of high intensity are of major interest in atomic and particle physics as well as in material science. The intensity of conventional positron beams using β + sources amounts typically to 10 6 positrons per second. Theref
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc93f3cb205b4c8b48029f9d9a67a3b2
https://doi.org/10.1016/j.nimb.2004.03.048
https://doi.org/10.1016/j.nimb.2004.03.048
Autor:
S. Stancek, P. Kovac, Gottfried Kögel, Peter Sperr, Jan Kuriplach, Peter Domonkos, Werner Triftshäuser, Martin Petriska, V Slugen, P. Ballo, Werner Egger, Andrej Zeman, V.M Domankova, I Vavra
Publikováno v:
Fusion Engineering and Design. 70:141-153
A positron annihilation spectroscopy (PAS) based on positron lifetime measurements, using the pulsed low energy positron system (PLEPS), is used to investigate defects create by hydrogen implantation and thermal treat of copper alloys. These alloys a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::101bfb2a23cf50c93fc664167bb46343
https://doi.org/10.1016/j.fusengdes.2003.10.002
https://doi.org/10.1016/j.fusengdes.2003.10.002
Autor:
Werner Triftshäuser
Publikováno v:
Materials Science Forum. :452-456
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf420139c4917aa2d15becd8da435be7
https://doi.org/10.4028/www.scientific.net/msf.445-446.452
https://doi.org/10.4028/www.scientific.net/msf.445-446.452
Autor:
Werner Triftshäuser, Gottfried Kögel, S. Rödling, Jürgen Bär, Peter Sperr, Werner Egger, H.-J. Gudladt
Publikováno v:
Scopus-Elsevier
Defect distributions close to cracks from monotonic and fatigue fractures have been investigated for the first time by positron lifetime studies. The positron beams probe either the depth profile of defects at sub-μm resolution or the lateral distri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e878da5e2f30e68b469606ade7723b2
https://doi.org/10.1515/ijmr-2003-0119
https://doi.org/10.1515/ijmr-2003-0119
Publikováno v:
Applied Surface Science. 194:150-154
Positron annihilation spectroscopy (PAS) based on positron lifetime (PL) measurements using the pulsed low-energy positron system (PLEPS) was applied for the investigation of defects of irradiated and thermally treated reactor pressure vessel (RPV) s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e1b9b187d62cba1bd7b31a8b7739476
https://doi.org/10.1016/s0169-4332(02)00116-2
https://doi.org/10.1016/s0169-4332(02)00116-2
Autor:
Werner Triftshäuser, Werner Egger, F. Börner, Peter Sperr, Reinhard Krause-Rehberg, F. Redmann, Gottfried Kögel
Publikováno v:
Applied Surface Science. 194:210-213
Monoenergetic positrons are widely used to study defects in near-surface regions and buried interfaces of solids. Depth information is usually obtained by varying the positron implantation energy. However, at energies larger than 10 keV the stopping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e10bfe461c717337a5777a76c9101ccd
https://doi.org/10.1016/s0169-4332(02)00104-6
https://doi.org/10.1016/s0169-4332(02)00104-6
Autor:
Jürgen Bär, Werner Egger, Peter Sperr, Werner Triftshäuser, H.-J. Gudladt, S. Rödling, Gottfried Kögel
Publikováno v:
Applied Surface Science. 194:214-217
The accumulation of plastic strain by low cycle fatigue has been expected for a long time to induce vacancy clusters, particularly in the most damaged region, i.e. close to a fatigue crack. For the first time, the Munchen scanning positron microscope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d2a7431ef12995c262ac2dad1a6f196
https://doi.org/10.1016/s0169-4332(02)00106-x
https://doi.org/10.1016/s0169-4332(02)00106-x
Autor:
Marie-France Barthe, David T. Britton, Werner Triftshäuser, C. Corbel, Peter Sperr, Werner Egger, Gottfried Kögel, Pierre Desgardin
Publikováno v:
Applied Surface Science. 194:122-126
We have used slow positron beam-based positron lifetime spectroscopy to study positron diffusion in thick epitaxial n-type 6H-SiC layers. The layers are considerably thicker than the maximum positron penetration depth, and can therefore, be treated a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33e16910724db464cbe62783ea7c0622
https://doi.org/10.1016/s0169-4332(02)00110-1
https://doi.org/10.1016/s0169-4332(02)00110-1
Autor:
Peter Sperr, Gottfried Kögel, R. Repper, Christoph Hugenschmidt, Werner Triftshäuser, B. Straßer, Klaus Schreckenbach
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 192:97-101
The principle of the in-pile positron source at the Munich research reactor FRM-II is based on absorption of high energy prompt γ-rays from thermal neutron capture in 113Cd. For this purpose, a cadmium cap is placed inside the tip of the inclined be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8421500d7ed6da2013b0c333ac655fd
https://doi.org/10.1016/s0168-583x(02)00788-7
https://doi.org/10.1016/s0168-583x(02)00788-7