zone refining
zone refining
nounDefinition of ZONE REFINING
: a technique for the purification of a crystalline material and especially a metal in which a molten region travels through the material to be refined, picks up impurities at its advancing edge, and then allows the purified part to recrystallize at its opposite edge —called also zone melting
— zone–refined adjective
First Known Use of ZONE REFINING
1952
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