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Optical investigation of the hydrogenation and dehydrogenation mechanisms of evaporated MgNi films by Jürgen Ell; Andreas Georg; Markus Arntzen; Andreas Gombert; Wolfgang Graf; Volker Wittwer is a Engineering article available to read on EtoBox.
What is Optical investigation of the hydrogenation and dehydrogenation mechanisms of evaporated MgNi films about?
We prepared thin films of magnesium nickel with a wide compositional range from pure magnesium to the intermetallic compound Mg 2 Ni by e-beam evaporation. Capped with a thin Pd film such layers act as switchable mirrors upon exposure to gases containing hydrogen and oxygen. We investigated the reaction kinetics by measurement of the transmittance, and the reflectances both from the film side and the substrate side. We found that the hydrogenation kinetics and the optical performance are strongly dependent on the layer composition. The best results were obtained for Mg 4 Ni to Mg 8 Ni. It is shown that this is due to the different nucleation and growth behavior of the layers.
Who reads Optical investigation of the hydrogenation and dehydrogenation mechanisms of evaporated MgNi films?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Jürgen Ell; Andreas Georg; Markus Arntzen; Andreas Gombert; Wolfgang Graf; Volker Wittwer
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0927-0248)
- Published
- 2007
- Language
- EN
- Field
- Engineering (Physical Sciences)