Nanoscale Structure and Structural Relaxation in Zr50Cu45Al5 Bulk Metallic Glass

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HWANG J., MELGAREJO Z. H., Kalay Y. E., KALAY I., KRAMER M. J., STONE D. S., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.108, sa.19, 2012 (SCI-Expanded, Scopus)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 108 Sayı: 19
• Basım Tarihi: 2012
• Doi Numarası: 10.1103/physrevlett.108.195505
• Dergi Adı: PHYSICAL REVIEW LETTERS
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
• Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Hybrid reverse Monte Carlo simulations of the structure of Zr50Cu45Al5 bulk metallic glass incorporating medium-range structure from fluctuation electron microscopy data and short-range structure from an embedded atom potential produce structures with significant fractions of icosahedral- and crystal-like atomic clusters. Similar clusters group together into nanometer-scale regions, and relaxation transforms crystal-like clusters into icosahedral clusters. A model refined against only the potential does not agree with the fluctuation microscopy data and contains few crystal-like clusters.