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Indexed by:期刊论文

Date of Publication:2005-08-01

Journal:2nd International Conference on Solidification Science and Processing

Included Journals:SCIE、CPCI-S、Scopus

Volume:58

Issue:4

Page Number:731-738

ISSN No.: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.