Title: Epitaxial nanotwinned metals and alloys: synthesis-twin structure–property relations

Journal Article · · CrystEngComm
DOI: https://doi.org/10.1039/d1ce00787d · OSTI ID:1846514
 [1];  [2];  [3];  [4];  [4];  [5]; ORCiD logo [4]; ORCiD logo [4]
  1. Purdue Univ., West Lafayette, IN (United States); Ames Lab., Ames, IA (United States)
  2. Purdue Univ., West Lafayette, IN (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Purdue Univ., West Lafayette, IN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Purdue Univ., West Lafayette, IN (United States)
  5. Univ. of North Carolina, Charlotte, NC (United States)

Extensive studies have been performed to understand the structure–property relationship in nanotwinned (NT) metals, where the average twin thickness or twin spacing is less than 100 nm. NT metals may have high strength, ductility, good electrical conductivity and corrosion resistance and have promising applications in microelectronics, structural materials and coatings for gas and oil industry. Most prior studies focus on the computational and experimental investigations of NT metals with low stacking fault energy (SFE) and often in polycrystalline forms. In this highlight, we review recent findings on epitaxial growth of NT metals and alloys with low and high SFEs deposited on single crystal substrates, and focus primarily on advancing our comprehension towards tailoring the microstructures and properties of NT metals via extrinsic factors, including the synthesis technique, parametric control and growth template, and intrinsic factors, such as SFE and thermodynamic, kinetic alloying effects. The review intends to illuminate how to synthesize and design epitaxial NT structures to achieve desirable properties.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; SC0016337
OSTI ID:
1846514
Journal Information:
CrystEngComm, Journal Name: CrystEngComm Journal Issue: 38 Vol. 23; ISSN 1466-8033
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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