THE INFLUENCE OF TUNGSTEN SUBSTRATES ON HYDROGEN ABSORPTION BY IODIDETITANIUM FILMS

Authors
CUEVAS F FERNANDEZ JF ALGUERO M SANCHEZ C
Citation
F. Cuevas et al., THE INFLUENCE OF TUNGSTEN SUBSTRATES ON HYDROGEN ABSORPTION BY IODIDETITANIUM FILMS, Journal of alloys and compounds, 231(1-2), 1995, pp. 798-803
Citations number
15
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
231
Issue
1-2
Year of publication
1995
Pages
798 - 803
Database
ISI
SICI code
0925-8388(1995)231:1-2<798:TIOTSO>2.0.ZU;2-D
Abstract
Iodide titanium films have been grown on tungsten substrates by means of a TiI4 flow system. It was found that tungsten diffusion takes plac e during the titanium film deposition. Tungsten concentrations as high as 14 at.% have been recorded at 1350 degrees C deposition temperatur e. On cooling the films to room temperature, titanium remains in the b eta phase to an extent that depends on the film deposition time. The f ilms were hydrogenated at 500 degrees C and a large hysteresis effect was observed in the P-X diagram. This hysteresis effect is explained b y considering the influence of the tungsten diffusion into the films.