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MDPI, Nanomaterials, 10(11), p. 2541, 2021

DOI: 10.3390/nano11102541

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

Journal article published in 2021 by Osman El-Atwani ORCID, Hyosim Kim ORCID, Cayla Harvey, Mert Efe ORCID, Stuart A. Maloy ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

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.