High temperature irradiation induced creep in Ag nanopillars measured via in situ transmission electron microscopy

Jawaharram, Gowtham Sriram; Price, Patrick M.; Barr, Christopher M.; Hattar, Khalid; Averback, Robert S.; Dillon, Shen J.

doi:10.1016/j.scriptamat.2018.01.007

Title: High temperature irradiation induced creep in Ag nanopillars measured via in situ transmission electron microscopy

Journal Article · 30 January 2018 · Scripta Materialia

DOI: https://doi.org/10.1016/j.scriptamat.2018.01.007 · OSTI ID:1426801

Jawaharram, Gowtham Sriram ^[1]; Price, Patrick M. ^[2]; Barr, Christopher M. ^[2]; Hattar, Khalid ^[2]; Averback, Robert S. ^[1]; Dillon, Shen J. ^[1]

Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Irradiation induced creep (IIC) rates are measured in compression on Ag nanopillar (square) beams in the sink-limited regime. The IIC rate increases linearly with stress at lower stresses, i.e. below ≈2/3 the high temperature yield stress and parabolically with pillar width, L, for L less than ≈300 nm. Here, the data are obtained by combining in situ transmission electron imaging with simultaneous ion irradiation, laser heating, and nanopillar compression. Results in the larger width regime are consistent with prior literature.

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Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000; DEFG02-05ER46217; FWP 15013170; NA-0003525

OSTI ID:: 1426801

Alternate ID(s):: OSTI ID: 1548841

Report Number(s):: SAND-2018-1672J; 660698

Journal Information:: Scripta Materialia, Vol. 148, Issue C; ISSN 1359-6462

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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