zone melting
noun
a process of purifying any of various metals and other materials, as germanium or silicon, by passing it in bar form through an induction coil.
Also called
zone refining.
Compare
cage zone melting.
Origin of zone melting
First recorded in 1955–60
Words nearby zone melting
zonation,
zond,
zone,
zone defense,
zone line,
zone melting,
zone of accumulation,
zone of avoidance,
zone of fire,
zone of illuviation,
zone of interior
British Dictionary definitions for zone refining
zone refining
noun
a technique for producing solids of extreme purity, esp for use in semiconductors. The material, in the form of a bar, is melted in one small region that is passed along the solid. Impurities concentrate in the melt and are moved to the end of the bar