Quenching and recovery experiments on molybdenum
- 1 November 1980
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 42 (5) , 601-611
- https://doi.org/10.1080/01418618008241839
Abstract
Quenching experiments in superfluid helium have been performed on high-purity wire specimens obtained from a Mo single crystal with a residual resistance ratio of 40 000. Quenching from various temperatures near the melting point to 1·5 K resulted in quenched-in resistivities which are interpreted in terms of quenched-in vacancies. The following parameters were derived: H 1v F=3·2eV (formation enthalpy of monovacancies) and S 1v F=1·5 k (formation entropy). The recovery of the quenched-in resistivity showed a recovery stage at 520 K, which is compatible with a migration enthalpy of H 1v M=1·35 eV. The results are compared with recently published positron annihilation data.Keywords
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