Aluminum-rich bulk metallic glasses

• DOI: 10.1016/j.scriptamat.2008.08.003
• Publication Date: 2008-08-15T06:53:53Z
• Authors: B.A. Sun; M.X. Pan; D.Q. Zhao; W.H. Wang; X.K. Xi; M.T. Sandor; Y. Wu
• Keywords: Thermal Stability

The formation and properties of a class of Al-rich bulk metallic glasses (BMGs) are reported. The Al contents for these alloys can reach up to 40 at.%, which is the highest in known BMGs. The Al-rich BMGs deviate greatly from eutectic composition and show high thermal stability and fragility, and very high mechanical strength. These Al-rich BMGs might have implications for Al-based BMGs in general and for understanding the role of Al in glass formation.