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Title: Structural Phase Transition in AuZn Alloys

Conference ·
OSTI ID:970425

AuxZn1-x alloys undergo a shape memory martensitic transformation whose temperature and nature (continuous or discontinuous) is strongly composition dependent. Neutron diffraction experiments were performed on single crystals of x=50 and 52 to explore the structural changes occurring at the transition temperature. A transverse modulation with wavevector q0=(1/3,1/3,0) develops below the transition temperature, with no observable change in lattice parameter. However, the Bragg peak width shows a broadening suggesting an unresolved rhombohedral distortion similar to what has been observed in NiTi-Fe alloys.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
Doe - Office Of Science
DOE Contract Number:
DE-AC02-98CH10886
OSTI ID:
970425
Report Number(s):
BNL-90217-2009-CP; R&D Project: PO-010; KC0202010; TRN: US1000759
Resource Relation:
Conference: International Conference on Neutron Scattering 2009; Knoxville, TN; 20090503 through 20090507
Country of Publication:
United States
Language:
English