Structural relaxation in amorphous Fe40Ni40P14B6alloy studied by positron annihilation
- 1 March 1981
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 11 (3) , 727-735
- https://doi.org/10.1088/0305-4608/11/3/018
Abstract
The Doppler-broadened line shape of 511 keV gamma rays emitted from annihilating positron-electron pairs, the positron lifetime and electrical resistivity of the amorphous Fe40Ni40P14B6 alloy have been measured in the 0-500 degrees C temperature range using isochronal annealing. The W parameter of the Doppler-broadened line shape, related to core-electron annihilation, increased in two stages by annealing below the crystallisation temperature. These increases appear to be due to the loss of excess free volume in the as-quenched amorphous alloy.Keywords
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