Atomic packing density and its influence on the properties of Cu-Zr amorphous alloys

Kyoung Won Park, Jae il Jang, Masato Wakeda, Yoji Shibutani, Jae Chul Lee

Research output: Contribution to journalArticlepeer-review

170 Citations (Scopus)


This study examined the structural factors that determine the properties of amorphous alloys. The properties of amorphous alloys were found to be intimately related to the atomic packing density, characterized by short-range ordered (SRO) atomic clusters and free volume. With increasing packing density, the modulus and strength increased, while the plasticity decreased. We discuss the fundamental microstructural aspects that influence several representative properties of amorphous alloys in terms of the packing state characterized by fractions of SRO atomic clusters.

Original languageEnglish
Pages (from-to)805-808
Number of pages4
JournalScripta Materialia
Issue number9
Publication statusPublished - 2007 Nov

Bibliographical note

Funding Information:
This study was supported by the Basic Research Program (R01-2004-0000-10891-0) of Korea Science and Engineering Foundation, Republic of Korea. The authors (M.W. and Y.S.) acknowledge the support from the Ministry of Education, Culture, Sports, Science and Technology of Japan, Grant-in-Aid for Scientific Research on Priority Areas (15074214).


  • Amorphous alloy
  • Atomic packing density
  • Free volume
  • Properties
  • Short-range ordering

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys


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