Diaelastic modulus change of aluminium after low temperature electron irradiation

A Comparison with empirical results of the interstitialcy theory of condensed matter

“…Similar values for b also occur in Al [11] and Fe [12]. Measurements of the entropy per interstitial at low concentrations $10 À4 in Al [7] and computer simulations for Cu [8] give S/k $ 16.…”

Theoretical analysis of the interconnection between the shear elasticity and heat effects in metallic glasses

“…For the harmonic interatomic potential, the second derivative of the shear modulus with respect to the shear strain is equal to zero, the shear susceptibility β = 0, the shear modulus of glass equals to that of crystal and heat effects upon temperature scanning are absent. The underlying microscopic reason for the key role of the anharmonicity, like in crystals [30,31], might be the large local compression and related decreased interatomic distance between the atoms constituting the interstitialcy defect, 3 which makes important the steeply repulsive part of the interatomic potential. 2 Originally, the heat flow within the framework of the approach under consideration was derived as [25] …”

“…With a permission from Elsevier. 3 For instance, in Al crystal the distance between the atoms in the interstitialcy core is by about 15% less than the interatomic spacing in the defect-free structure [31]. in the initial state (run 1) and after heating into the supercooled liquid region (run 2).…”

Synergic Role of Self-Interstitials and Vacancies in Indium Melting

“…The close relationship of intersticialcy to melting has been confirmed by extensive computer simulations [24,25] and experiments [26,27]. In particular, Robrock and Schilling [27] measured a shear modulus G decrease of 27% and 19% for 1% defects in Al single crystals with <100> and <111> orientations, respectively.…”

“…In particular, Robrock and Schilling [27] measured a shear modulus G decrease of 27% and 19% for 1% defects in Al single crystals with <100> and <111> orientations, respectively. Such variations, ascribed by the investigators to self-interstitials with a <100> dumbbell configuration, are comparable with that observed by us.…”