In situ nanoindentation study of plastic Co-deformation in Al-TiN nanocomposites
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Materials Physics and Applications Division
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Materials Science and Technology Division
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Materials Physics and Applications Division; Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Materials Science and Engineering
We performed in situ indentation in a transmission electron microscope on Al-TiN multilayers with individual layer thicknesses of 50 nm, 5 nm and 2.7 nm to explore the effect of length scales on the plastic co-deformability of a metal and a ceramic. At 50 nm, plasticity was confined to the Al layers with easy initiation of cracks in the TiN layers. At 5 nm and below, cracking in TiN was suppressed and post mortem measurements indicated a reduction in layer thickness in both layers. The results demonstrate the profound size effect in enhancing plastic co-deformability in nanoscale metal-ceramic multilayers.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1259289
- Alternate ID(s):
- OSTI ID: 1321747
- Report Number(s):
- LA-UR-14-26958; srep06633
- Journal Information:
- Scientific Reports, Vol. 4; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 68 works
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