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Title: Following the Morphological Disruption by an Electrolyte of a Buried Interface

Abstract

A challenge of broad interest in both materials science and biology is the study of interfaces that are buried within a structure, particularly multilayer structures. Despite the enormous costs of corrosion and many decades of corrosion research, details of the mechanisms of various sorts of corrosion are still not clear, in part due to the difficulty in interrogating the interface between the corroding metal and an organic coating, which is typically used to mitigate corrosion. Generally, the performance of such coatings is evaluated by visual inspection after exposure or by modeling impedance data, which is a process not straightforwardly connected to physical interface structures. "Rocking-curve" X-ray scattering measurements provide a means of probing such interfaces due to the ability of X-rays to penetrate materials. Here, variations in the morphology of an interface between a protective coating and a metal substrate due to exposure to an electrolyte are derived from analysis of rocking-curve data in conjunction with atomic force microscopy imaging of the outer coating surface. The interfaces of cross-linked epoxy coatings with aluminum are irreversibly changed after 12 h of contact between the electrolyte solution and the face of the coating. The character of this change varies with the moleculemore » used to cross-link the coating. Since X-ray off-specular scattering is sensitive to changes on the nanometer scale, it is also able to register interface degradation on time scales shorter than those probed by many other techniques, potentially expediting the evaluation of coatings for protection against degradation of the interface.« less

Authors:
ORCiD logo [1];  [2];  [1];  [1]; ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1]
  1. Univ. of Akron, OH (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1502499
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 11; Journal Issue: 3; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; coating; corrosion; diffusion; interface morphology; nanoscale; off-specular scattering

Citation Formats

Yang, Feipeng, Jiang, Zhang, He, Qiming, Zhang, Zimo, Zhou, Yang, Karapetrova, Evguenia, Soucek, Mark D., and Foster, Mark D. Following the Morphological Disruption by an Electrolyte of a Buried Interface. United States: N. p., 2018. Web. doi:10.1021/acsami.8b18009.
Yang, Feipeng, Jiang, Zhang, He, Qiming, Zhang, Zimo, Zhou, Yang, Karapetrova, Evguenia, Soucek, Mark D., & Foster, Mark D. Following the Morphological Disruption by an Electrolyte of a Buried Interface. United States. doi:10.1021/acsami.8b18009.
Yang, Feipeng, Jiang, Zhang, He, Qiming, Zhang, Zimo, Zhou, Yang, Karapetrova, Evguenia, Soucek, Mark D., and Foster, Mark D. Fri . "Following the Morphological Disruption by an Electrolyte of a Buried Interface". United States. doi:10.1021/acsami.8b18009.
@article{osti_1502499,
title = {Following the Morphological Disruption by an Electrolyte of a Buried Interface},
author = {Yang, Feipeng and Jiang, Zhang and He, Qiming and Zhang, Zimo and Zhou, Yang and Karapetrova, Evguenia and Soucek, Mark D. and Foster, Mark D.},
abstractNote = {A challenge of broad interest in both materials science and biology is the study of interfaces that are buried within a structure, particularly multilayer structures. Despite the enormous costs of corrosion and many decades of corrosion research, details of the mechanisms of various sorts of corrosion are still not clear, in part due to the difficulty in interrogating the interface between the corroding metal and an organic coating, which is typically used to mitigate corrosion. Generally, the performance of such coatings is evaluated by visual inspection after exposure or by modeling impedance data, which is a process not straightforwardly connected to physical interface structures. "Rocking-curve" X-ray scattering measurements provide a means of probing such interfaces due to the ability of X-rays to penetrate materials. Here, variations in the morphology of an interface between a protective coating and a metal substrate due to exposure to an electrolyte are derived from analysis of rocking-curve data in conjunction with atomic force microscopy imaging of the outer coating surface. The interfaces of cross-linked epoxy coatings with aluminum are irreversibly changed after 12 h of contact between the electrolyte solution and the face of the coating. The character of this change varies with the molecule used to cross-link the coating. Since X-ray off-specular scattering is sensitive to changes on the nanometer scale, it is also able to register interface degradation on time scales shorter than those probed by many other techniques, potentially expediting the evaluation of coatings for protection against degradation of the interface.},
doi = {10.1021/acsami.8b18009},
journal = {ACS Applied Materials and Interfaces},
number = 3,
volume = 11,
place = {United States},
year = {2018},
month = {12}
}

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This content will become publicly available on December 28, 2019
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