Dissolution of surface oxide layers on titanium and titanium subhydride between 25/sup 0/ and 700/sup 0/C

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The surface-sensitive, spectroscopic techniques of Auger electron spectroscopy (AES) and x-ray photoelectron spectroscopy (XPS) have been applied to the study of oxide dissolution on titanium and titanium subhydride. In an earlier study it was shown, using AES, that the rate of oxygen dissolution into titanium increased sharply at about 350/sup 0/C. These data correlated well with physical property measurements that indicated that at these temperatures an exothermic reaction, corresponding to the reaction of free titanium with atmospheric oxygen, was occurring. In the present study the work has been expanded to include studies of TiH/sub x/ (x = 1.15, 1.62). It ... continued below

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Pages: 18

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Wittberg, T.N. & Wang, P.S. January 1, 1981.

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The surface-sensitive, spectroscopic techniques of Auger electron spectroscopy (AES) and x-ray photoelectron spectroscopy (XPS) have been applied to the study of oxide dissolution on titanium and titanium subhydride. In an earlier study it was shown, using AES, that the rate of oxygen dissolution into titanium increased sharply at about 350/sup 0/C. These data correlated well with physical property measurements that indicated that at these temperatures an exothermic reaction, corresponding to the reaction of free titanium with atmospheric oxygen, was occurring. 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 substantially higher temperature (about 500/sup 0/C) than for titanium. It appears that the outward diffusion of hydrogen is inhibiting the inward diffusion of oxygen on the subhydride samples at temperatures below 500/sup 0/C. Further studies of the dissolution of oxides on titanium at fixed temperatures in the range of 300 to 350/sup 0/C have shown that there is a semi-logarithmic relationship between the surface oxygen level and the time at temperature. This is in agreement with earlier gravimetric studies on titanium oxidation in this temperature range.

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Pages: 18

Notes

NTIS, PC A02/MF A01.

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  • 11. symposium on explosives and pyrotechniques, Philadelphia, PA, USA, 15 Sep 1981

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  • Other: DE81028044
  • Report No.: MLM-2856(OP)
  • Report No.: CONF-810926-4
  • Grant Number: AC04-76DP00053
  • Office of Scientific & Technical Information Report Number: 6166688
  • Archival Resource Key: ark:/67531/metadc1110406

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1981

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  • Feb. 22, 2018, 7:45 p.m.

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  • March 23, 2018, 1:32 p.m.

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Wittberg, T.N. & Wang, P.S. Dissolution of surface oxide layers on titanium and titanium subhydride between 25/sup 0/ and 700/sup 0/C, article, January 1, 1981; United States. (digital.library.unt.edu/ark:/67531/metadc1110406/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.