Searched for: subject:"magnesium"
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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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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