Arc‐Transfer Method of Crystal Growth

摘要

A new method of crystal growing is reported. It consists essentially of striking a dc arc between two electrodes. The growing crystal acts as the anode and a sintered feed rod as the cathode. The establishment of the arc results in cathode material being transferred to a molten zone on the anode where crystallization takes place. Crystal growth in this manner is particularly suited to certain high‐melting‐point materials. Crystals which have been successfully grown by the method include the oxides of cobalt, iron, nickel, titanium, and vanadium. The arc‐transfer method and its advantages over existing high‐temperature techniques are illustrated by describing the production of single crystals of nickel oxide.