Bibliographic Details
| Title: |
Positron annihilation in solid, liquid and undercooled melts of Co[sub 80] Pd[sub 20]. |
| Authors: |
Bührer, C., Holzwarth, U., Maier, K., Platzek, D., Reske, J. |
| Source: |
Applied Physics A: Materials Science & Processing. 1996, Vol. 63 Issue 2, p191. 4p. |
| Subjects: |
Positron annihilation, Alloys, Electromagnetism |
| Abstract: |
Positron annihilation measurements have been performed in solid, liquid and undercooled Co[sub 800oPd[sub 20] alloy using electromagnetic levitation as containerless processing method. The formation enthalpy for a single vacancy is H[sub 1v] = (1.7 ± 0.1) eV. In the melt, the thermal expansion continues linear in the undercooled phase and is larger than that of the solid alloy. The mean free volume in the liquid phase is slightly larger than the volume of a single vacancy. At the Curie temperatures of both solid and liquid phase, the S-parameter indicates no effect on the atomic structure. Different H[sub 2] concentrations in the processing gas atmosphere have no detectable influence on the data. [ABSTRACT FROM AUTHOR] |
|
Copyright of Applied Physics A: Materials Science & Processing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Engineering Source |
