Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2005-08-01

Journal: 2nd International Conference on Solidification Science and Processing

Included Journals: Scopus、CPCI-S、SCIE

Volume: 58

Issue: 4

Page Number: 731-738

ISSN: 0019-493X

Abstract: In this paper, we will describe the formation rules of Zr-based bulk metallic glasses, originally developed for quasicrystals, by combining cluster structures with phase diagram features. We will introduce the e/a-constant and e/a-variant criteria for ternary systems, and e/a-constant and atomic size constant criteria for quaternary systems. We will show how the glass forming composition optimization is realized by applying these rules in the Zr-Al-Ni and Zr-Al-Ni-Cu systems. In both systems the optimized glass-forming composition is related to a common binary icosahedral cluster Zr9Ni4 derived from the fcc Zr2Ni phase.