Growth of uniform solid solutions of naphthalene and 2-naphthol by repeated pass zone-leveling

Abstract

Abstract The construction of a zone-leveling apparatus is described. The apparatus was tested with the binary system naphthalene and 2-naphthol. The experimental concentration distribution profiles in the zone-leveled ingots are compared with profiles calculated by the theory of Kirgintsev and Kudrin. The concentration distribution measured in the polycrystalline zone-leveled ingots shows a variation of 0.01 mole fraction in the uniform part of the ingot. The isothermal initial melting behaviour of uniform solid solutions of naphthalene and 2-naphtol is described.