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Title: Solid-solution CrCoCuFeNi high-entropy alloy thin films synthesized by sputter deposition

The concept of high configurational entropy requires that the high-entropy alloys (HEAs) yield single-phase solid solutions. However, phase separations are quite common in bulk HEAs. A five-element alloy, CrCoCuFeNi, was deposited via radio frequency magnetron sputtering and confirmed to be a single-phase solid solution through the high-energy synchrotron X-ray diffraction, energy-dispersive spectroscopy, wavelength-dispersive spectroscopy, and transmission electron microscopy. The formation of the solid-solution phase is presumed to be due to the high cooling rate of the sputter-deposition process.
 [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [3] ;  [3] ;  [4] ;  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab, Oak Ridge, TN (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States); Beijing Institute of Science and Technology, Beijing (People's Republic of China)
Publication Date:
OSTI Identifier:
Grant/Contract Number:
AC02-06CH11357; FE0008855; FE0011194; FE0024054; W911NF-13-1-0438; 00119262; CMMI-0900271; CMMI-1100080; DMR-0909037
Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 80; Journal Issue: 4; Journal ID: ISSN 2166-3831
Taylor and Francis
Research Org:
Argonne National Laboratory-Advanced Photon Source, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE Office of Fossil Energy (FE); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
36 MATERIALS SCIENCE microstructure; sputtering; thin films; solid solution