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Solid-state amorphization of Zr/sub 3/Al: Evidence of an elastic instability and first-order phase transformation

Journal Article · · Phys. Rev. Lett.; (United States)
Changes in shear elastic constant, long-range order, and lattice parameter were measured during disordering and eventual amorphization of Zr/sub 3/Al by ion irradiation. Large (approx. =50%) elastic softening was observed during disordering, and anomalies occurred in all three measured parameters over a narrow range of ion doses. The results indicate that a first-order phase transformation triggered by an elastic instability occurs during solid-state amorphization. The changes reported here during disordering and amorphization are very similar to behavior observed previously in a large number of solids during heating to melting.
Research Organization:
Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5743603
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 59:26; ISSN PRLTA
Country of Publication:
United States
Language:
English