Czochralski growth of metal single crystals

Abstract

This work aims to produce metal single crystals by the Czochralski technique. Single crystals of copper, aluminium and nickel were grown by this technique. The Laue method was used to confirm that these crystals are single. Nickel single crystals were examined by using synchrotron radiation in both transmission and reflection. Magnetic domain and dislocation bands could be seen. A theoretical study has also been carried out, following Buckley-Golder, to find the effect of the seed, neck and crystal dimension on the temperature gradient in the reduction of thermal stress and consequent dislocation density.