J. Phys. Colloques
Volume 48, Numéro C6, Novembre 198734th International Field Emission Symposium / 34ème Symposium International d'Emission de Champ
|Page(s)||C6-481 - C6-486|
J. Phys. Colloques 48 (1987) C6-481-C6-486
ATOM-PROBE STUDY OF ABSORBED HYDROGEN IN NIOBIUMK. Okuno1, K. Oida2, H. Yamashita2 et O. Nishikawa2
1 Department of Electrical Engineering, Nagasaki Institute of Applied Science, 536 Abamachi, Nagasaki 851-01, Japan
2 Department of Materials Science and Engineering, The Graduate School at Nagatsuta, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227, Japan
The presence of absorbed hydrogen in Nb metal has been observed visibly by field ion microscope. The behavior and states of hydrogen in Nb metal are of interest. However this information can not be obtained by FIM. Therefore experiments using high mass resolution time-of-flight atom-probe were performed to investigate the hydrogen concentration in Nb metal, the characteristics of hydrogen and hydride distribution, and their temperature dependence.