Critical point lowering in thin PdHxfilms
- 1 February 1983
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 13 (2), L13-L18
- https://doi.org/10.1088/0305-4608/13/2/001
Abstract
Pressure-composition isotherms of PdHx films of 100-400 nm thickness have been measured between 300 and 500K at pressures up to 10 bar by means of an oscillating quartz microbalance. For all the films investigated the two-phase region is considerably narrower than that of bulk PdHx. This narrowing of the miscibility gap, together with the observed lowering of the critical temperature, is due to a weakening of the hydrogen-hydrogen interaction which probably originates from the elastic boundary conditions at the film-substrate interface.Keywords
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