Grain Size in Cast Gold Alloys

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Abstract
SYNOPSIS IN INTERLINGUA MAGNITUDE GRANULAR IN FUNDITE ALLICATOS DE AURO.—Le resistentia a traction e le elongamento de auros dental es augmentate quando le magnitude granular es raffinate. Le technica pro le raffinamento del grano in metallos fundite require le regulation del rapiditate con que nucleos de solidification es formate, lo que pote occurrer per nucleation heterogenee o per nucleation homogenee. Le nucleation heterogenee require le dispersion de fin particulas solide in le metallo liquide durante su refrigidaniento. Le nucleation homogenee require superrefrigidamento pro producer nucleos de solidification in le absentia de dispersion. Le rapiditate del nucleation in nucleation homogenee es promovitc quando le energia interfacial inter le nucleos e le liquido es reducite. Un regulation del magnitude del granos esseva effectuate per un regulation del energia de superficie.

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