Zobrazeno 1 - 10
of 42
pro vyhledávání: '"K. Baumert"'
Publikováno v:
Acta Materialia. 67:156-167
This study highlights an oxidation-assisted fatigue crack initiation mechanism in 20 μm thick electroplated Ni films under loading conditions relevant for a wide range of microelectromechanical systems, such as extreme stress gradients at the surfac
Autor:
Samuel Graham, Farzad Sadeghi-Tohidi, Olivier N. Pierron, Christian Hopmann, E. K. Baumert, Henrik Behm, Jörg Winter, Anuradha Bulusu, David Samet, Hendrick Bahre
Publikováno v:
SID Symposium Digest of Technical Papers. 44:361-364
In this paper, we present the results of mechanical testing that reveals the onset crack strain and fatigue crack growth of TiO2 and Al2O3 films deposited by atomic layer deposition. Data show that both films have a strong thickness dependence of the
Autor:
E. K. Baumert, Olivier N. Pierron
Publikováno v:
Journal of Microelectromechanical Systems. 22:16-25
A micrometer-scale ultrasonic fatigue characterization technique is introduced to investigate the fatigue degradation properties of LIGA Ni structural films in the very high cycle fatigue regime. Kilohertz microresonators fabricated with the MetalMUM
Autor:
E. K. Baumert, Olivier N. Pierron
Publikováno v:
Scripta Materialia. 67:45-48
A characterization technique based on kilohertz micro-resonators is presented to investigate the very high cycle fatigue behavior of 20 μm thick electroplated Ni films with a columnar microstructure (grain diameter less than 2 μm). The films exhibi
Publikováno v:
Scripta Materialia. 65:596-599
The fatigue properties of monocrystalline Si thin films coated with nanoscale alumina layers (ranging from 4.2 to 50 nm) are compared to those of uncoated Si films, in air at 30 °C, 50% relative humidity (RH) and 80 °C, 90% RH. The presence of alum
Autor:
E. K. Baumert, Samuel Graham, B. Pant, B. L. Allen, Olivier N. Pierron, Ken Gall, Sukwon Choi
Publikováno v:
Experimental Mechanics. 52:607-617
Microelectromechanical system (MEMS) devices based on electro-thermal actuation have been used over the past few years to perform tensile tests on nanomaterials. However, previous MEMS designs only allowed small (e.g.
Autor:
V. Staudt, T. Bopp, E. Schmitt, E. Bothur, J. Stein, V. Raker, E. Montermann, J. Maxeiner, C. Taube, S. Grabbe, A. Reske-Kunz, S. Sudowe, S. Reuter, M. Becker, N. Dehzad, H. Martin, A. Waisman, M. Stassen, R. Buhl, M. Gehring, M. Böhm, T. Luger, A. Kapp, U. Raap, B. F. Gibbs, I. Yasinska, A. Oniku, C. Streatfield, V. Sumbayey, C. Hofmann, S. Scheurer, S. Vieths, H. Adler, K. Steinbrink, C. Pföhler, R. Körner, C. Müller, D. Madjidi, K. Preuss, M. Pfreundschuh, T. Vogt, M. Niebuhr, S. Kasraie, K. Baumert, T. Werfel, M. Klein, A. Ulges, H. Schild, T. Seher, J. Mayer, K. Brockow, C. Traidl-Hoffmann, M. Ollert, J. Gutermuth, C. Schmidt-Weber, R. Treudler, C. Chu, J. Simon, U.-C. Hipler, S. Goetze, N. Rahmig, P. Elsner, M. Kamml, S. Öder, F. Alessandrini, A. Braun, D. Ernst, U. Kanter, J. Durner, M. Hauser, F. Ferreira, M. Mempel, H. Behrendt, D. von Bubnoff, U. Sell, A. Hörauf, S. Specht, T. Bieber
Publikováno v:
Allergo Journal. 20:S20-S26
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 34:240-249
This paper investigates the tensile and fatigue properties of a newly developed fibre metal laminate (FML) manufactured using the vacuum assisted resin transfer moulding (VARTM) method. This manufacturing method allows the glass fibre reinforced epox
Publikováno v:
Acta Materialia. 58:2854-2863
This study investigated the cyclic and static fatigue properties of 10 μm thick, deep reactive ion etched, monocrystalline silicon films. Stress–life fatigue curves and fatigue degradation rates vs. stress curves were generated at both 4 and 40 kH
Autor:
S. Weidinger, E. Rodriguez, S. Wagenpfeil, W. McLean, T. Bieber, H. Behrendt, J. Ring, T. Illig, N. Novak, S. Förster, K. Eyerich, C. Traidl-Hoffmann, M. Niebuhr, J. Langnickel, G. Begemann, K. Baumert, C. Draing, T. Werfel, E. Guenova, T. Volz, S. Kaesler, M. Röcken, T. Biedermann, A. Heratizadeh, P. Kienlin, I. Mittermann, R. Valenta, C. Termeer, S. Martin, J. Dudda, A. Lembo, M. Freudenberg, C. Galanos, H. F. Merk, M. Bergström, H. Ott, A. Carlsson, M. Neis, G. Zwadlo-Klarwasser, A. Karlberg, J. Baron, U. Jappe, B. Sachs, W. Fischer-Barth, H. Merk
Publikováno v:
Allergo Journal. 16:49-52