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Title: Microstructure and mechanical properties of co-sputtered Al-SiC composites

Journal Article · · Materials & Design
 [1];  [1];  [1]; ORCiD logo [2];  [3]; ORCiD logo [1]
  1. Arizona State Univ., Tempe, AZ (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Minnesota, Minneapolis, MN (United States)
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Nanolaminates have gained much attention due to exceptional mechanical, optical, electrical and biological properties. Here, we explore the microstructure and mechanical properties of Al-SiC co-sputtered monolayers having different compositions. Co-sputtering enables tailoring the microstructure at an atomic level and hence is a promising route to develop new generation of materials. These co-sputtered samples were characterized through FIB/SEM, TEM and XPS. They had an amorphous microstructure, with the exception of nanocrystalline Al aggregates present in one of the compositions. The micromechanical properties were studied through nanoindentation. Finally, we observed that the modulus and hardness of the co-sputtered samples were much higher than traditional Al/SiC nanolaminate samples having the same composition.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
89233218CNA000001; AC52-06NA25396
OSTI ID:
1547716
Alternate ID(s):
OSTI ID: 1570656
Report Number(s):
LA-UR-19-29885
Journal Information:
Materials & Design, Vol. 168, Issue C; ISSN 0264-1275
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

Figures / Tables (11)

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Related Subjects

36 MATERIALS SCIENCE
Co-sputtered
Nanolaminates
Nanolayer
Transmission electron microscopy
Nanoindentation
Thin film