@article{5f558fe9effa4755950cb34ea665bc5f,
title = "Evidence for a high temperature whisker growth mechanism active in tungsten during in situ nanopillar compression",
abstract = "A series of nanopillar compression tests were performed on tungsten as a function of temperature using in situ transmission electron microscopy with localized laser heating. Surface oxidation was observed to form on the pillars and grow in thickness with increasing temperature. Deformation between 850◦C and 1120◦C is facilitated by long-range diffusional transport from the tungsten pillar onto adjacent regions of the Y2O3-stabilized ZrO2 indenter. The constraint imposed by the surface oxidation is hypothesized to underly this mechanism for localized plasticity, which is generally the so-called whisker growth mechanism. The results are discussed in context of the tungsten fuzz growth mechanism in He plasma-facing environments. The two processes exhibit similar morphological features and the conditions under which fuzz evolves appear to satisfy the conditions necessary to induce whisker growth.",
keywords = "Fuzz, In situ, Transmission electron microscopy, Tungsten, Whisker",
author = "Jawaharram, {Gowtham Sriram} and Barr, {Christopher M.} and Khalid Hattar and Dillon, {Shen J.}",
note = "Funding Information: S.J.D. and G.S.J. were supported by the US DOE Office of Basic Energy Sciences, Materials Science and Engineering Division under Grant DE-SC0019875. C.M.B. and K.H. were also supported by the DOE-BES Materials Science and Engineering Division, but under a separate FWP 15013170. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. DOE?s National Nuclear Security Administration under contract DE-NA-0003525. The views expressed in the article do not necessarily represent the views of the U.S. DOE or the United States Government. Funding Information: Funding: S.J.D. and G.S.J. were supported by the US DOE Office of Basic Energy Sciences, Materials Science and Engineering Division under Grant DE-SC0019875. C.M.B. and K.H. were also supported by the DOE-BES Materials Science and Engineering Division, but under a separate FWP 15013170. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. DOE{\textquoteright}s National Nuclear Security Administration under contract DE-NA-0003525. The views expressed in the article do not necessarily represent the views of the U.S. DOE or the United States Government. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2021",
month = sep,
doi = "10.3390/nano11092429",
language = "English (US)",
volume = "11",
journal = "Nanomaterials",
issn = "2079-4991",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "9",
}