TY - JOUR
T1 - Formation of an icosahedral quasicrystalline phase in Zr65Al7.5Ni10M17.5 (M = Pd, Au or Pt) alloys
AU - Inoue, Akihisa
AU - Saida, Junji
AU - Matsushita, Mitsuhide
AU - Sakurai, Toshio
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2000/2
Y1 - 2000/2
N2 - An icosahedral (I) phase was found to be formed as a metastable phase in the crystallization process of amorphous Zr65Al7.5Ni10M17.5 (M = Pd, Au or Pt) alloys. The three amorphous alloys show an endothermic reaction due to the glass transition, followed by two exothermic peaks. The first exothermic peak is due to the precipitation of an I-phase and the second one results from the transition from the I to crystalline mixed phases of Zr4Al3 + Zr2Ni + Zr2Pd (Zr2Au or ZrPt). The I-phase consists of fine grains with a size of about 10 nm no distinct residual amorphous phase is seen. The formation of the I-phase in the new Zr-based alloy systems with a large supercooled liquid region and high glass-forming ability is important for the future development of bulk quasicrystalline alloys as basic science and engineering materials.
AB - An icosahedral (I) phase was found to be formed as a metastable phase in the crystallization process of amorphous Zr65Al7.5Ni10M17.5 (M = Pd, Au or Pt) alloys. The three amorphous alloys show an endothermic reaction due to the glass transition, followed by two exothermic peaks. The first exothermic peak is due to the precipitation of an I-phase and the second one results from the transition from the I to crystalline mixed phases of Zr4Al3 + Zr2Ni + Zr2Pd (Zr2Au or ZrPt). The I-phase consists of fine grains with a size of about 10 nm no distinct residual amorphous phase is seen. The formation of the I-phase in the new Zr-based alloy systems with a large supercooled liquid region and high glass-forming ability is important for the future development of bulk quasicrystalline alloys as basic science and engineering materials.
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U2 - 10.2320/matertrans1989.41.362
DO - 10.2320/matertrans1989.41.362
M3 - Article
AN - SCOPUS:0033877489
VL - 41
SP - 362
EP - 365
JO - Materials Transactions
JF - Materials Transactions
SN - 1345-9678
IS - 2
ER -