Experimental measurements of nucleation frequency and crystal growth rate in Pd-Cu-Ni-P metallic glass

Nobuyuki Nishiyama; Akihisa Inoue

Experimental measurements of nucleation frequency and crystal growth rate in Pd-Cu-Ni-P metallic glass

Nobuyuki Nishiyama, Akihisa Inoue

Institute for Materials Research (IMR)

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

9 Citations (Scopus)

Abstract

Crystallization mechanism and kinetics of a Pd₄₀Cu₃₀Ni₁₀P₂₀ glass was investigated in a wide temperature range from 603 (near the glass transition temperature) to 764 K (near the equilibrium melting temperature) by using an isothermal annealing treatment for nucleation and growth. The nucleus density (n_v) is about 5×10¹³ nuclei/m³ and is independent of annealing temperature. Therefore, it is assumed that the crystallization of the alloy was dominated by heterogeneous nucleation due to `quenched-in nuclei'. On the other hand, the crystal growth rate (U_c) increases from 1.07×10^-11 to 5.68×10^-5 m/s with rising annealing temperature from 603 to 764 K. These values of U_c are 2-3 orders of magnitude larger than the calculated U_c on the basis of Classical Nucleation and Growth Theory (CNT). Furthermore, the glass-forming ability of the alloy will be discussed in the framework of the present results.

Original language	English
Pages (from-to)	125-130
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	554
Publication status	Published - 1999 Dec 1
Event	Proceedings of the 1998 MRS Fall Meeting - Symposium MM on'Bulk Metallic Glasses' - Boston, MA, USA Duration: 1998 Dec 1 → 1998 Dec 3

ASJC Scopus subject areas

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

Cite this

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title = "Experimental measurements of nucleation frequency and crystal growth rate in Pd-Cu-Ni-P metallic glass",

abstract = "Crystallization mechanism and kinetics of a Pd40Cu30Ni10P20 glass was investigated in a wide temperature range from 603 (near the glass transition temperature) to 764 K (near the equilibrium melting temperature) by using an isothermal annealing treatment for nucleation and growth. The nucleus density (nv) is about 5×1013 nuclei/m3 and is independent of annealing temperature. Therefore, it is assumed that the crystallization of the alloy was dominated by heterogeneous nucleation due to `quenched-in nuclei'. On the other hand, the crystal growth rate (Uc) increases from 1.07×10-11 to 5.68×10-5 m/s with rising annealing temperature from 603 to 764 K. These values of Uc are 2-3 orders of magnitude larger than the calculated Uc on the basis of Classical Nucleation and Growth Theory (CNT). Furthermore, the glass-forming ability of the alloy will be discussed in the framework of the present results.",

author = "Nobuyuki Nishiyama and Akihisa Inoue",

year = "1999",

month = dec,

day = "1",

language = "English",

volume = "554",

pages = "125--130",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Proceedings of the 1998 MRS Fall Meeting - Symposium MM on'Bulk Metallic Glasses' ; Conference date: 01-12-1998 Through 03-12-1998",

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TY - JOUR

T1 - Experimental measurements of nucleation frequency and crystal growth rate in Pd-Cu-Ni-P metallic glass

AU - Nishiyama, Nobuyuki

AU - Inoue, Akihisa

PY - 1999/12/1

Y1 - 1999/12/1

N2 - Crystallization mechanism and kinetics of a Pd40Cu30Ni10P20 glass was investigated in a wide temperature range from 603 (near the glass transition temperature) to 764 K (near the equilibrium melting temperature) by using an isothermal annealing treatment for nucleation and growth. The nucleus density (nv) is about 5×1013 nuclei/m3 and is independent of annealing temperature. Therefore, it is assumed that the crystallization of the alloy was dominated by heterogeneous nucleation due to `quenched-in nuclei'. On the other hand, the crystal growth rate (Uc) increases from 1.07×10-11 to 5.68×10-5 m/s with rising annealing temperature from 603 to 764 K. These values of Uc are 2-3 orders of magnitude larger than the calculated Uc on the basis of Classical Nucleation and Growth Theory (CNT). Furthermore, the glass-forming ability of the alloy will be discussed in the framework of the present results.

AB - Crystallization mechanism and kinetics of a Pd40Cu30Ni10P20 glass was investigated in a wide temperature range from 603 (near the glass transition temperature) to 764 K (near the equilibrium melting temperature) by using an isothermal annealing treatment for nucleation and growth. The nucleus density (nv) is about 5×1013 nuclei/m3 and is independent of annealing temperature. Therefore, it is assumed that the crystallization of the alloy was dominated by heterogeneous nucleation due to `quenched-in nuclei'. On the other hand, the crystal growth rate (Uc) increases from 1.07×10-11 to 5.68×10-5 m/s with rising annealing temperature from 603 to 764 K. These values of Uc are 2-3 orders of magnitude larger than the calculated Uc on the basis of Classical Nucleation and Growth Theory (CNT). Furthermore, the glass-forming ability of the alloy will be discussed in the framework of the present results.

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M3 - Conference article

AN - SCOPUS:0033327558

SN - 0272-9172

VL - 554

SP - 125

EP - 130

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1998 MRS Fall Meeting - Symposium MM on'Bulk Metallic Glasses'

Y2 - 1 December 1998 through 3 December 1998

ER -

Experimental measurements of nucleation frequency and crystal growth rate in Pd-Cu-Ni-P metallic glass

Abstract

ASJC Scopus subject areas

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