MAGNETIC-FIELD EFFECT ON CRYSTALLINE NUCLEATION IN MGCU2-XZNX ALLOYS

Citation
Y. Aoki et al., MAGNETIC-FIELD EFFECT ON CRYSTALLINE NUCLEATION IN MGCU2-XZNX ALLOYS, Science Reports of the Research Institutes, Tohoku University, Series A: Physics, Chemistry, and Metallurgy, 38(2), 1993, pp. 373-382
Citations number
8
Categorie Soggetti
Material Science","Metallurgy & Mining
ISSN journal
00408808
Volume
38
Issue
2
Year of publication
1993
Pages
373 - 382
Database
ISI
SICI code
0040-8808(1993)38:2<373:MEOCNI>2.0.ZU;2-O
Abstract
By the use of an improved vertical Bridgman growth furnace, the magnet ic field effect on the formation of crystalline nuclei has been examin ed for the MgCu2-xZnx alloys with x = 0 and 1.15 in a high magnetic fi eld of 100 kOe. It was found that the application of magnetic field du ring the crystallization tends to suppress the formation of crystallin e nuclei for the MgCu2 alloy (x = 0), in contrast to the increase in t he number of grains for the MgCu0.85Zn1.15 alloy (x = 1.15). The exper imental results are qualitatively explained by taking into account the contribution from the magnetic free energy change accompanying the fo rmation of a solid froin its liquid.