Applications of Liquid Cell-TEM in Corrosion Research

Hattar, Khalid Mikhiel; Unocic, Raymond R.

doi:10.1007/978-3-030-89101-5_6

Recent Developments in Analytical Techniques for Corrosion Research 2022

DOI: 10.1007/978-3-030-89101-5_6

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Applications of Liquid Cell-TEM in Corrosion Research

Khalid Mikhiel Hattar

Raymond R. Unocic

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Cited by 2 publications

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“…For example, the nucleation and growth of nanocrystals, solid electrolyte interphases during the electrodeposition of alkali metal, , structure and bonding of liquids, short-range ordering in liquid electrolyte, and many other topics have been studied. Liquid cell TEM has also been used to study nanocrystal degradation, etching, and galvanic reactions of metal. ,,− Thus, with an innovative design of experiments, it is possible to reveal corrosion pathways of materials at the nanoscale or at the atomic level using the powerful liquid cell TEM platform.…”

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confidence: 99%

Unveiling Corrosion Pathways of Sn Nanocrystals through High-Resolution Liquid Cell Electron Microscopy

Peng,

Shangguan,

Zhang

et al. 2024

Nano Lett.

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Unveiling materials' corrosion pathways is significant for understanding the corrosion mechanisms and designing corrosionresistant materials. Here, we investigate the corrosion behavior of Sn@Ni 3 Sn 4 and Sn nanocrystals in an aqueous solution in real time by using high-resolution liquid cell transmission electron microscopy. Our direct observation reveals an unprecedented level of detail on the corrosion of Sn metal with/without a coating of Ni 3 Sn 4 at the nanometric and atomic levels. The Sn@Ni 3 Sn 4 nanocrystals exhibit "pitting corrosion", which is initiated at the defect sites in the Ni 3 Sn 4 protective layer. The early stage isotropic etching transforms into facet-dependent etching, resulting in a cavity terminated with lowindex facets. The Sn nanocrystals under fast etching kinetics show uniform corrosion, and smooth surfaces are obtained. Sn nanocrystals show "creeping-like" etching behavior and rough surfaces. This study provides critical insights into the impacts of coating, defects, and ion diffusion on corrosion kinetics and the resulting morphologies.

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confidence: 99%

Unveiling Corrosion Pathways of Sn Nanocrystals through High-Resolution Liquid Cell Electron Microscopy

Peng,

Shangguan,

Zhang

et al. 2024

Nano Lett.

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Materials properties characterization in the most extreme environments

et al. 2022

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There is an ever-increasing need for material systems to operate in the most extreme environments encountered in space exploration, energy production, and propulsion systems. To effectively design materials to reliably operate in extreme environments, we need an array of tools to both sustain lab-scale extreme conditions and then probe the materials properties across a variety of length and time scales. Within this article, we examine the state-of-the-art experimental systems for testing materials under extreme environments and highlight the limitations of these approaches. We focus on three areas: (1) extreme temperatures, (2) extreme mechanical testing, and (3) chemically hostile environments. Within these areas, we identify six opportunities for instrument and technique development that are poised to dramatically impact the further understanding and development of next-generation materials for extreme environments. Graphical abstract

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Applications of Liquid Cell-TEM in Corrosion Research

Cited by 2 publications

References 76 publications

Unveiling Corrosion Pathways of Sn Nanocrystals through High-Resolution Liquid Cell Electron Microscopy

Unveiling Corrosion Pathways of Sn Nanocrystals through High-Resolution Liquid Cell Electron Microscopy

Materials properties characterization in the most extreme environments

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