Ferromagnetism in icosahedral Al-Mn-Si alloys

Journal Article · Wed Mar 01 04:00:00 EST 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.4808· OSTI ID:6230708

Dunlap, R A; McHenry, M E; Srinivas, V; Bahadur, D; O'Handley, R C

Alloys of Al/sub 50/Mn/sub 20/Si/sub 30/ and Al/sub 55/Mn/sub 20/Si/sub 25/ have been prepared by rapid quenching from the melt onto a single Cu roller. As-quenched alloys have been found to be fully amorphous. This amorphous phase crystallizes at approximately 600 K. Alloys annealed below the crystallization temperature transform into single-phase icosahedral quasicrystals. Both the amorphous and quasicrystalline phases are weakly ferromagnetic with Curie temperatures around 120 K and saturation magnetization in the order of 0.1 emu/g.

• Research Organization: Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 6230708
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
AMORPHOUS STATE
CRYSTALLIZATION
CURIE POINT
FERROMAGNETISM
MAGNETISM
MANGANESE ALLOYS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SILICON ALLOYS
TERNARY ALLOY SYSTEMS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE