Nearly pure decagonal (d)-phase Al70Ni13Co13Si4 ingot of about 1.2 kg was prepared by conventional casting. The d-phase in the Al alloy is formed directly from the melt. During slow solidification from the melt, the alloy can develop a nearly pure single d-phase of decaprismatic morphology. The adjustment of the Si concentration and the conventional casting process is expected to make the possibilities of producing single-phase kilogram scale quasicrystalline ingots a reality.
Bibliographical noteFunding Information:
Research was sponsored by Creative Research Initiatives of the Korea Ministry of Science and Technology. Partial work performed at Northwestern Polytechnical University was financially supported by Chinese Aviation Science Foundation. We thank Dr. S. M. Lee for helpful suggestions.
All Science Journal Classification (ASJC) codes
- Materials Science(all)