Nabarro, F.R.N.2006-08-292006-08-291940Proceedings of the Physical Society, Vol. 52, 1940, p. 90-93http://hdl.handle.net/10539/1132An estimate is given of the way in which the strain energy associated with a particle of precipitate depends upon the shape of the particle. It is shown that the energy can only be reduced if the precipitate forms in flat plates, and then only in the case of particles which have broken away from the lattice of the matrix. this dependence of strain energy on shape causes the precipitate to consist of plates of a shape similar to that observed in Widmanstatten structures.1321115 bytesapplication/pdfenalloysparticlesArticle