Phase separation in Cu46Zr47-xAl7Gd x metallic glasses

Norbert Mattern, Ulla Vainio, Jin Man Park, Jun Hee Han, Ahmed Shariq, Do Hyang Kim, Jürgen Eckert

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The influence of Gd addition on phase separation of rapidly quenched Cu46Zr47-xAl7Gdx metallic glasses (x = 2,5,7) was studied. For low Gd content (x = 2), a homogeneous glass is obtained for the as-quenched state. Annealing leads to cluster formation by nucleation and growth prior to crystallization. For the Gd contents x = 5 and 7, early stages of spinodal decomposition are observed in the as-quenched glasses. Further annealing increases the amplitude of the compositional fluctuations prior to crystallization. Atom probe tomography gives evidence of the presence of Gd-enriched clusters of 2-5 nm size for the Cu46Zr 42Al7Gd5 glass. The structure formation as a function of the Gd content is essentially determined by the composition dependence of the miscibility gap of the metastable undercooled melt. Early stages of spinodal decomposition or almost homogeneous glassy states are obtained if the critical temperature of liquid-liquid phase separation is close or below to the glass transition temperature.

Original languageEnglish
Pages (from-to)S23-S26
JournalJournal of Alloys and Compounds
Volume509
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2011 Jul 14

Fingerprint

Metallic glass
Phase separation
Spinodal decomposition
Crystallization
Glass
Annealing
Liquids
Tomography
Nucleation
Solubility
Atoms
Chemical analysis
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Mattern, N., Vainio, U., Park, J. M., Han, J. H., Shariq, A., Kim, D. H., & Eckert, J. (2011). Phase separation in Cu46Zr47-xAl7Gd x metallic glasses. Journal of Alloys and Compounds, 509(SUPPL. 1), S23-S26. https://doi.org/10.1016/j.jallcom.2010.10.062
Mattern, Norbert ; Vainio, Ulla ; Park, Jin Man ; Han, Jun Hee ; Shariq, Ahmed ; Kim, Do Hyang ; Eckert, Jürgen. / Phase separation in Cu46Zr47-xAl7Gd x metallic glasses. In: Journal of Alloys and Compounds. 2011 ; Vol. 509, No. SUPPL. 1. pp. S23-S26.
@article{796df7053abe4903a92dc77c6f486a1e,
title = "Phase separation in Cu46Zr47-xAl7Gd x metallic glasses",
abstract = "The influence of Gd addition on phase separation of rapidly quenched Cu46Zr47-xAl7Gdx metallic glasses (x = 2,5,7) was studied. For low Gd content (x = 2), a homogeneous glass is obtained for the as-quenched state. Annealing leads to cluster formation by nucleation and growth prior to crystallization. For the Gd contents x = 5 and 7, early stages of spinodal decomposition are observed in the as-quenched glasses. Further annealing increases the amplitude of the compositional fluctuations prior to crystallization. Atom probe tomography gives evidence of the presence of Gd-enriched clusters of 2-5 nm size for the Cu46Zr 42Al7Gd5 glass. The structure formation as a function of the Gd content is essentially determined by the composition dependence of the miscibility gap of the metastable undercooled melt. Early stages of spinodal decomposition or almost homogeneous glassy states are obtained if the critical temperature of liquid-liquid phase separation is close or below to the glass transition temperature.",
author = "Norbert Mattern and Ulla Vainio and Park, {Jin Man} and Han, {Jun Hee} and Ahmed Shariq and Kim, {Do Hyang} and J{\"u}rgen Eckert",
year = "2011",
month = "7",
day = "14",
doi = "10.1016/j.jallcom.2010.10.062",
language = "English",
volume = "509",
pages = "S23--S26",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
number = "SUPPL. 1",

}

Mattern, N, Vainio, U, Park, JM, Han, JH, Shariq, A, Kim, DH & Eckert, J 2011, 'Phase separation in Cu46Zr47-xAl7Gd x metallic glasses', Journal of Alloys and Compounds, vol. 509, no. SUPPL. 1, pp. S23-S26. https://doi.org/10.1016/j.jallcom.2010.10.062

Phase separation in Cu46Zr47-xAl7Gd x metallic glasses. / Mattern, Norbert; Vainio, Ulla; Park, Jin Man; Han, Jun Hee; Shariq, Ahmed; Kim, Do Hyang; Eckert, Jürgen.

In: Journal of Alloys and Compounds, Vol. 509, No. SUPPL. 1, 14.07.2011, p. S23-S26.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Phase separation in Cu46Zr47-xAl7Gd x metallic glasses

AU - Mattern, Norbert

AU - Vainio, Ulla

AU - Park, Jin Man

AU - Han, Jun Hee

AU - Shariq, Ahmed

AU - Kim, Do Hyang

AU - Eckert, Jürgen

PY - 2011/7/14

Y1 - 2011/7/14

N2 - The influence of Gd addition on phase separation of rapidly quenched Cu46Zr47-xAl7Gdx metallic glasses (x = 2,5,7) was studied. For low Gd content (x = 2), a homogeneous glass is obtained for the as-quenched state. Annealing leads to cluster formation by nucleation and growth prior to crystallization. For the Gd contents x = 5 and 7, early stages of spinodal decomposition are observed in the as-quenched glasses. Further annealing increases the amplitude of the compositional fluctuations prior to crystallization. Atom probe tomography gives evidence of the presence of Gd-enriched clusters of 2-5 nm size for the Cu46Zr 42Al7Gd5 glass. The structure formation as a function of the Gd content is essentially determined by the composition dependence of the miscibility gap of the metastable undercooled melt. Early stages of spinodal decomposition or almost homogeneous glassy states are obtained if the critical temperature of liquid-liquid phase separation is close or below to the glass transition temperature.

AB - The influence of Gd addition on phase separation of rapidly quenched Cu46Zr47-xAl7Gdx metallic glasses (x = 2,5,7) was studied. For low Gd content (x = 2), a homogeneous glass is obtained for the as-quenched state. Annealing leads to cluster formation by nucleation and growth prior to crystallization. For the Gd contents x = 5 and 7, early stages of spinodal decomposition are observed in the as-quenched glasses. Further annealing increases the amplitude of the compositional fluctuations prior to crystallization. Atom probe tomography gives evidence of the presence of Gd-enriched clusters of 2-5 nm size for the Cu46Zr 42Al7Gd5 glass. The structure formation as a function of the Gd content is essentially determined by the composition dependence of the miscibility gap of the metastable undercooled melt. Early stages of spinodal decomposition or almost homogeneous glassy states are obtained if the critical temperature of liquid-liquid phase separation is close or below to the glass transition temperature.

UR - http://www.scopus.com/inward/record.url?scp=79958148857&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79958148857&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2010.10.062

DO - 10.1016/j.jallcom.2010.10.062

M3 - Article

AN - SCOPUS:79958148857

VL - 509

SP - S23-S26

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - SUPPL. 1

ER -

Mattern N, Vainio U, Park JM, Han JH, Shariq A, Kim DH et al. Phase separation in Cu46Zr47-xAl7Gd x metallic glasses. Journal of Alloys and Compounds. 2011 Jul 14;509(SUPPL. 1):S23-S26. https://doi.org/10.1016/j.jallcom.2010.10.062