The effect of Ag addition on the crystallization behavior of amorphous Zr65Al7.5Cu17.5Ni10Agx (x=0,2.5,5,7.5,10) Alloys

J. K. Lee; W. T. Kim; D. H. Kim

The effect of Ag addition on the crystallization behavior of amorphous Zr₆₅Al_7.5Cu_17.5Ni₁₀Ag_x (x=0,2.5,5,7.5,10) Alloys

J. K. Lee, W. T. Kim, D. H. Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

The effect of Ag on the crystallization behavior of rapidly solidified amorphous Zr₆₅Al_7.5Cu_17.5-xNi₁₀ Ag_x (X=0,2.5,5,7.5,10) alloys has been studied by using differential scanning calorimetry, X-ray diffractometry, and transmission electron microscopy. The amorphous phase in Zr₆₅Al_7.5Cu_17.5Ni₁₀ alloy crystallizes via coprecipitation of icosahedral phase and NiZr₂ phase in the first crystallization step, followed by decomposition of the quasicrystal into CuZr₂ and NiZr₂ phase. The NiZr₂ phase transformed to stable Zr₆NiAl₂ phase at high temperature. The alloys containing Ag crystallizes via a two step process: Firstly, quasicrystalline phase nucleates and grows in an amorphous matrix; Secondly, the quasicrystal and remaining amorphous transformed into a stable CuZr₂ and Zr₆NiAl₂ phases. With increasing Ag, the icosahedral phase becomes more thermally stable and the quasicrystals grain size decreased.

Original language	English
Pages (from-to)	101-106
Number of pages	6
Journal	Materials Science Forum
Volume	360-362
Publication status	Published - 2001
Event	Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 2000) - Oxford, United Kingdom Duration: 2000 Jul 9 → 2000 Jul 14

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{c71282fe3c974d4791f7d07035a3c94e,

title = "The effect of Ag addition on the crystallization behavior of amorphous Zr65Al7.5Cu17.5Ni10Agx (x=0,2.5,5,7.5,10) Alloys",

abstract = "The effect of Ag on the crystallization behavior of rapidly solidified amorphous Zr65Al7.5Cu17.5-xNi10 Agx (X=0,2.5,5,7.5,10) alloys has been studied by using differential scanning calorimetry, X-ray diffractometry, and transmission electron microscopy. The amorphous phase in Zr65Al7.5Cu17.5Ni10 alloy crystallizes via coprecipitation of icosahedral phase and NiZr2 phase in the first crystallization step, followed by decomposition of the quasicrystal into CuZr2 and NiZr2 phase. The NiZr2 phase transformed to stable Zr6NiAl2 phase at high temperature. The alloys containing Ag crystallizes via a two step process: Firstly, quasicrystalline phase nucleates and grows in an amorphous matrix; Secondly, the quasicrystal and remaining amorphous transformed into a stable CuZr2 and Zr6NiAl2 phases. With increasing Ag, the icosahedral phase becomes more thermally stable and the quasicrystals grain size decreased.",

author = "Lee, {J. K.} and Kim, {W. T.} and Kim, {D. H.}",

year = "2001",

language = "English",

volume = "360-362",

pages = "101--106",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications",

note = "Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 2000) ; Conference date: 09-07-2000 Through 14-07-2000",

}

TY - JOUR

T1 - The effect of Ag addition on the crystallization behavior of amorphous Zr65Al7.5Cu17.5Ni10Agx (x=0,2.5,5,7.5,10) Alloys

AU - Lee, J. K.

AU - Kim, W. T.

AU - Kim, D. H.

PY - 2001

Y1 - 2001

N2 - The effect of Ag on the crystallization behavior of rapidly solidified amorphous Zr65Al7.5Cu17.5-xNi10 Agx (X=0,2.5,5,7.5,10) alloys has been studied by using differential scanning calorimetry, X-ray diffractometry, and transmission electron microscopy. The amorphous phase in Zr65Al7.5Cu17.5Ni10 alloy crystallizes via coprecipitation of icosahedral phase and NiZr2 phase in the first crystallization step, followed by decomposition of the quasicrystal into CuZr2 and NiZr2 phase. The NiZr2 phase transformed to stable Zr6NiAl2 phase at high temperature. The alloys containing Ag crystallizes via a two step process: Firstly, quasicrystalline phase nucleates and grows in an amorphous matrix; Secondly, the quasicrystal and remaining amorphous transformed into a stable CuZr2 and Zr6NiAl2 phases. With increasing Ag, the icosahedral phase becomes more thermally stable and the quasicrystals grain size decreased.

AB - The effect of Ag on the crystallization behavior of rapidly solidified amorphous Zr65Al7.5Cu17.5-xNi10 Agx (X=0,2.5,5,7.5,10) alloys has been studied by using differential scanning calorimetry, X-ray diffractometry, and transmission electron microscopy. The amorphous phase in Zr65Al7.5Cu17.5Ni10 alloy crystallizes via coprecipitation of icosahedral phase and NiZr2 phase in the first crystallization step, followed by decomposition of the quasicrystal into CuZr2 and NiZr2 phase. The NiZr2 phase transformed to stable Zr6NiAl2 phase at high temperature. The alloys containing Ag crystallizes via a two step process: Firstly, quasicrystalline phase nucleates and grows in an amorphous matrix; Secondly, the quasicrystal and remaining amorphous transformed into a stable CuZr2 and Zr6NiAl2 phases. With increasing Ag, the icosahedral phase becomes more thermally stable and the quasicrystals grain size decreased.

UR - http://www.scopus.com/inward/record.url?scp=0034998148&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034998148&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0034998148

VL - 360-362

SP - 101

EP - 106

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

T2 - Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 2000)

Y2 - 9 July 2000 through 14 July 2000

ER -

The effect of Ag addition on the crystallization behavior of amorphous Zr₆₅Al_7.5Cu_17.5Ni₁₀Ag_x (x=0,2.5,5,7.5,10) Alloys

Abstract

All Science Journal Classification (ASJC) codes

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