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Competition between SRO and LRO in CuAu{sub 3}

Book ·
OSTI ID:323462
; ; ;  [1]
  1. Univ. of Vienna (Austria). Inst. fuer Materialphysik

Ordering in CuAu{sub 3}, was investigated by residual resistivity and X-ray scattering. L1{sub 2} long-range ordering (LRO) in this alloy is quite sluggish, therefore for low quenching temperatures and sufficiently short annealing times only effects of short-range order (SRO) are observed. With increasing quenching temperature and/or increasing annealing time evolution of LRO was observed by both residual resistometry and X-ray scattering. From the resistivity measurements information can be gained on the boundaries of the order-disorder two-phase field. An analysis of SRO-relaxation yields an ordering activation energy of 2.1 {+-} 0.1 eV.

OSTI ID:
323462
Report Number(s):
CONF-971201--
Country of Publication:
United States
Language:
English