Surface change in titanium subhydride between 25 and 700/sup 0/C studied by Auger electron spectroscopy and x-ray photoelectron spectroscopy

Technical Report · Fri Jul 09 04:00:00 EDT 1982

OSTI ID:5226141

Wang, P S; Carlson, R S; Wittberg, T N

The surface sensitive spectroscopic techniques of Auger electron spectroscopy (AES) and x-ray photoelectron spectroscopy (XPS) have been applied to the study of the oxide dissolution of titanium and titanium subhydride. In an earlier study using AES, it was shown that the rate of oxygen dissolution into titanium increased sharply at approx. 350/sup 0/C. These data correlated well with physical property measurements that indicated an exothermic reaction was occurring at these temperatures which corresponded to the reaction of free Ti with atmospheric oxygen. In the present study the work has been expanded to include studies of TiH/sub x/ (x = 1.15, 1.62). It has been found that dissolution of the native oxide on titanium subhydride occurs at a temperature substantially higher (approx. 500/sup 0/C) than that required for titanium. It appears that the outward diffusion of hydrogen is inhibiting the inward diffusion of oxygen on the sub-hydride samples at temperatures below 500/sup 0/C.

• Research Organization: Mound Facility, Miamisburg, OH (USA)
• DOE Contract Number: AC04-76DP00053
• OSTI ID: 5226141
• Report Number(s): MLM-2955; ON: DE82018216
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100 -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
AUGER ELECTRON SPECTROSCOPY
CHALCOGENIDES
DISSOLUTION
ELECTRON SPECTROSCOPY
HIGH TEMPERATURE
HYDRIDES
HYDROGEN COMPOUNDS
MEDIUM TEMPERATURE
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
SPECTROSCOPY
SURFACE PROPERTIES
TITANIUM COMPOUNDS
TITANIUM HYDRIDES
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS