Limitations of Thermal Stability Analysis via <i>In-Situ</i> TEM/Heating Experiments

Osman El-Atwani; Hyosim Kim; Cayla Harvey; Mert Efe; Stuart A. Maloy

doi:10.3390/nano11102541

Nanomaterials (Sep 2021)

Limitations of Thermal Stability Analysis via <i>In-Situ</i> TEM/Heating Experiments

Osman El-Atwani,
Hyosim Kim,
Cayla Harvey,
Mert Efe,
Stuart A. Maloy

Affiliations

Osman El-Atwani: Materials Science and Technology, Los Alamos National Lab, Los Alamos, NM 87545, USA
Hyosim Kim: Materials Science and Technology, Los Alamos National Lab, Los Alamos, NM 87545, USA
Cayla Harvey: Materials Science and Technology, Los Alamos National Lab, Los Alamos, NM 87545, USA
Mert Efe: Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
Stuart A. Maloy: Materials Science and Technology, Los Alamos National Lab, Los Alamos, NM 87545, USA

DOI: https://doi.org/10.3390/nano11102541
Journal volume & issue: Vol. 11, no. 10
p. 2541

Abstract

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This work highlights some limitations of thermal stability analysis via in-situ transmission electron microscopy (TEM)-annealing experiments on ultrafine and nanocrystalline materials. We provide two examples, one on nanocrystalline pure copper and one on nanocrystalline HT-9 steel, where in-situ TEM-annealing experiments are compared to bulk material annealing experiments. The in-situ TEM and bulk annealing experiments demonstrated different results on pure copper but similar output in the HT-9 steel. The work entails discussion of the results based on literature theoretical concepts, and expound on the inevitability of comparing in-situ TEM annealing experimental results to bulk annealing when used for material thermal stability assessment.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

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