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THEORY OF REGULAR ARRAYS OF DEFECTS - VOID LATTICE

STONEHAM, AM; (1971) THEORY OF REGULAR ARRAYS OF DEFECTS - VOID LATTICE. J PHYS F MET PHYS , 1 (6) 778 -784. 10.1088/0305-4608/1/6/311. Green open access

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Abstract

Defects in crystals may form a regular array, rather than a random distribution. The lattice of voids produced in irradiated molybdenum is a remarkable example of this. We give a general method of calculating the energy per defect in the array which exploits the periodicity of the defect lattice. The existence of the void lattice depends on the elastic interaction between voids. The present approach can treat both arbitrarily anisotropic elastic continua and discrete lattices, and is readily extended to discuss the stability of the defect lattice. The results predict that a void lattice should occur in molybdenum, and compare a number of models for the void. Stability against shear of the void lattice is not discussed in the present paper. The ratio of the void lattice spacing to void radius predicted is 2.2 to 4.5 and is smaller than the value of about 10 observed. The results are in general agreement with the more approximate Malén-Bullough treatment.

Type: Article
Title: THEORY OF REGULAR ARRAYS OF DEFECTS - VOID LATTICE
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/0305-4608/1/6/311
Publisher version: http://dx.doi.org/10.1088/0305-4608/1/6/311
Language: English
Additional information: Text made available to UCL Discovery by kind permission of IOP Publishing, 2012
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: https://discovery.ucl.ac.uk/id/eprint/59726
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