Two-stage melting in cesium lead alloys

Journal Article · Mon Apr 08 00:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.1894· OSTI ID:5626474

Price, D L; Saboungi, M; Reijers, R ^[1]; Kearley, G; White, R ^[2]

---

1. Argonne National Laboratory, Argonne, Illinois 60439 (USA)
2. Institut Laue-Langevin, 38042 Grenoble, (France)

The intermediate phase of the intermetallic alloy CsPb is shown to be a plastic crystal characterized by jump reorientations of Cs{sub 4}Pb{sub 4} structural units. The wave-vector variation of elastic and quasielastic intensities is well reproduced by a simple model of independent structural units jumping between the four orientations observed in the crystal at room temperature. This represents the first observation of a plastic-crystal phase in a metal alloy.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5626474
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:14; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
AMPLITUDES
CESIUM ALLOYS
COHERENT SCATTERING
DATA
DIFFRACTION
ELASTIC SCATTERING
EXPERIMENTAL DATA
HIGH TEMPERATURE
INFORMATION
LEAD ALLOYS
MEDIUM TEMPERATURE
MELTING
NEUTRON DIFFRACTION
NUMERICAL DATA
PHASE TRANSFORMATIONS
SCATTERING