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Journal of Applied Sciences
  Year: 2006 | Volume: 6 | Issue: 1 | Page No.: 202-205
DOI: 10.3923/jas.2006.202.205
 
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Maximum Glass-forming Ability Obtained at an Off-eutectic Composition Within a La-al-(Cu, Ni) Pseudo-ternary Eutectic System

Yong Zhang

Abstract:
Glass formation was investigated for the La100-xAl0.412x(Cu,Ni)0.588x(x = 30-56.3) alloys. The optimum Glass Forming Ability (GFA) with full glassy rods of 12 mm in diameter was obtained at an off-eutectic composition La62Al15.7(Cu,Ni)22.3, by copper mold casting, while a full glassy rod of only 1.5 mm in diameter was obtained at the La66Al14(Cu, Ni)20 eutectic alloy. A strong dependence of GFA on the composition was observed for these alloys. It has been found that the GFA does not correlate well with the extent of the supercooled liquid region (ΔTx) and is even not related closely to the reduced glass transition temperature Trg.
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How to cite this article:

Yong Zhang , 2006. Maximum Glass-forming Ability Obtained at an Off-eutectic Composition Within a La-al-(Cu, Ni) Pseudo-ternary Eutectic System. Journal of Applied Sciences, 6: 202-205.

DOI: 10.3923/jas.2006.202.205

URL: https://scialert.net/abstract/?doi=jas.2006.202.205

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