The annealing of deformed potassium
- 1 October 1971
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 24 (190), 857-878
- https://doi.org/10.1080/14786437108217055
Abstract
Measurements of residual resistance have been used to study the recovery of high-purity potassium wires deformed at 4·2 K and below. Details of the full recovery spectrum are given in this paper. The recovery is completed by a wide stage (at about 150 K) which arises from the final annealing of dislocations, but the main feature of recovery is a large stage (accounting for about 40% of the recovery) centred at 15 K. Point defects anneal in this stage by a process which involves several mechanisms, discussed in the following paper. The parameter of chief interest in the recovery process is the migration energy of the monovacancy, E 1v M. The value for this, which proves to be almost independent of the model, is 0·034±0·006 eV, as compared with 0·071 eV, a value recently calculated by Torrens and Gerl. Evidence is given of an anomalous difference between the properties of vacancies in potassium and in sodium.Keywords
This publication has 24 references indexed in Scilit:
- Isotope effects and defect energetics for diffusion in Na and NaClPhilosophical Magazine, 1971
- Application of the Method of Lattice Statics to Vacancies in Na, K, Rb, and CsPhysical Review B, 1969
- Deformation and fracture of potassiumActa Metallurgica, 1968
- Equilibrium Defect Concentration in Crystalline SodiumPhysical Review B, 1966
- The annealing of deformed sodiumPhilosophical Magazine, 1966
- A new type of low-temperature resistance anomaly in alloysPhysics Letters, 1964
- Experiments on Stage III Annealing in the Noble MetalsPhysical Review B, 1964
- Lattice dynamics of sodiumProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1963
- Low-Temperature Annealing Spectrum of Electron-Irradiated Gold and CadmiumPhysical Review B, 1962
- The effect of pressure on the electrical resistance of lithium, sodium and potassium at low temperaturesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1962