TITLE

Al-based metallic glass composites containing fcc Pb-rich crystalline spheres

AUTHOR(S)
He, Jie; Li, Haiquan; Zhao, Jiuzhou; Dai, Chunli
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/29/2008, Vol. 93 Issue 13, p131907
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Liquid immiscible systems present a unique opportunity in designing composites with sphere-dispersed microstructure. The authors report here phase formation of a multicomponent Al82.87Pb2.5Ni4.88Y7.8Co1.95 alloy upon melt spinning. The alloy undergoes liquid-liquid phase transformation in the liquid immiscibility gap and subsequently solidifies into Pb-rich crystalline phase and Al-rich amorphous phase. The Pb-rich phase with sphere shape is dispersed in the Al-based metallic glass matrix. The average diameter of the Pb-rich spheres is ∼0.62 μm near the free side and ∼0.03 μm near the wheel side of the ribbon.
ACCESSION #
34771936

 

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