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Baldi, A. (author), Pálsson, G.K. (author), Gonzalez-Silveira, M. (author), Schreuders, H. (author), Slaman, M. (author), Rector, J.H. (author), Krishnan, G. (author), Kooi, B.J. (author), Walker, G.S. (author), Fay, M.W. (author), Hjörvarsson, B. (author), Wijngaarden, R.J. (author), Dam, B. (author), Griessen, R. (author)Mg-Ti alloys have uncommon optical and hydrogen absorbing properties, originating from a “spinodal-like” microstructure with a small degree of chemical short-range order in the atomic distribution. In the present study we artificially engineer short-range order by depositing Pd-capped Mg/Ti multilayers with different periodicities....journal article 2010
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Perrotton, C. (author), Slaman, M. (author), Javahiraly, N. (author), Schreuders, H. (author), Dam, B. (author), Meyrueis, P. (author)An optical fiber containing structured hydrogen sensing points, consisting of Palladium and/or Magnesium alloys is proposed and characterized. The sensitive layer is deposited on the outside of a multimode fiber, after removing the optical cladding. The sensor is based on a measurement technique which uses the Surface Plasmon Resonance effect....conference paper 2010
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Leegwater, H. (author), Schut, H. (author), Egger, W. (author), Baldi, A. (author), Dam, B. (author), Eijt, S.W.H. (author)We obtained evidence for the partial chemical segregation of as-deposited and hydrogenated Mg1?yTiy films (0 ? y ? 0.30) into nanoscale Ti and Mg domains using positron Doppler-broadening. We exclusively monitor the hydrogenation of Mg domains, owing to the large difference in positron affinity for Mg and Ti. The electron momentum distribution...journal article 2010
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Krishnan, G. (author), Kooi, B.J. (author), Palasantzas, G. (author), Pivak, Y. (author), Dam, B. (author)In this work we present a unique transmission electron microscopy study of the thermal stability of gas phase synthesized Mg nanoparticles, which have attracted strong interest as high capacity hydrogen storage materials. Indeed, Mg nanoparticles with a MgO shell ( ? 3?nm thick) annealed at 300?°C show evaporation, void formation, and void...journal article 2010
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- Dam, B. (author) public lecture 2009
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Filippi, M. (author), Rector, J.H. (author), Gremaud, R. (author), Van Setten, M.J. (author), Dam, B. (author)We report the preparation of sodium alanate, a promising hydrogen storage material, in a thin film form using cosputtering in a reactive atmosphere of atomic hydrogen. We study the phase formation and distribution, and the hydrogen desorption, with a combination of optical and infrared transmission spectroscopy. We show that the hydrogen...journal article 2009
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Baldi, A. (author), Palmisano, V. (author), Gonzalez-Silveira, M. (author), Pivak, Y. (author), Slaman, M. (author), Schreuders, H. (author), Dam, B. (author), Griessen, R. (author)The thermodynamics of hydrogen absorption in Pd-capped Mg films are strongly dependent on the magnesium thickness. In the present work, we suppress such dependency by inserting a thin Ti layer between Mg and Pd. By means of optical measurements, we show that the surface energy contribution to the destabilization of MgH2 is negligible. The...journal article 2009
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Dam, E.B. (author), Loog, M. (author), Christiansen, C. (author), Byrjalsen, I. (author), Folkesson, J. (author), Nielsen, M. (author), Qazi, A.A. (author), Pettersen, P.C. (author), Garnero, P. (author), Karsdal, M.A. (author)Introduction: At present, no disease-modifying osteoarthritis drugs (DMOADS) are approved by the FDA (US Food and Drug Administration); possibly partly due to inadequate trial design since efficacy demonstration requires disease progression in the placebo group. We investigated whether combinations of biochemical and magnetic resonance imaging ...journal article 2009
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Baldi, A. (author), Gonzalez-Silveira, M. (author), Palmisano, V. (author), Dam, B. (author), Griessen, R. (author)We tune the thermodynamics of hydrogen absorption in Mg by means of elastic clamping. The loading isotherms measured by hydrogenography show that Mg films covered with Mg-alloy-forming elements, such as Pd and Ni, have hydrogen plateau pressures more than 2 orders of magnitude higher than bulk Mg at the same temperature. An elastic model allows...journal article 2009
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Eijt, S.W.H. (author), Kind, R. (author), Singh, S. (author), Schut, H. (author), Legerstee, W.J. (author), Hendrikx, R.W.A. (author), Svetchnikov, V.L. (author), Westerwaal, R.J. (author), Dam, B. (author)We report positron depth-profiling studies on the hydrogen sorption behavior and phase evolution of Mg-based thin films. We show that the main changes in the depth profiles resulting from the hydrogenation to the respective metal hydrides are related to a clear broadening in the observed electron momentum densities in both Mg and Mg2Ni films....journal article 2009
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- Dam, K.T. (author), Tanimoto, K. (author), Fatimah, E. (author) journal article 2008
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- Dam, K.T. (author) journal article 2006
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- Dam, C. (author) public lecture 1994
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- Dam, J.A.M. (author), Pieterman, K. (author) doctoral thesis 1989
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van Leeuwen, H.P. (author), Groep, F.F. (author), Schra, L. (author), Dam, N. (author)Test results reported in the literature show that in creep cracking tests at elevated temperature under steady load, the crack growth rate correlates best with the contour integral C*, also called J*, in comparison to other possible parameters. In the case of fatigue at elevated temperature, the crack growth rate correlates best with C* if...report 1987
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- Dam, H.T. (author) master thesis 1987
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- Dam, H.T. (author) report 1986
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- Dam, H.T. (author) report 1986
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- Dam, H.T. (author) report 1986
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Ngene, P. (author), Radeva, T. (author), Westerwaal, R. (author), Schreuders, H. (author), Dam, B. (author)Using the change in the intrinsic optical properties of YMg-based thin films upon exposure to hydrogen, we observe the presence of hydrogen at concentrations as low as 20 ppm just by a change in color. The eye-visible color change circumvents the use of any electronics in this device, thereby making it an inexpensive H2 detector. The detector...conference paper