Optical characterization of grain orientation in crystalline materials
Characterizing crystallographic orientation is essential for assessing structure-property relationships in crystalline solids. While diffraction methods have dominated this field, low throughput and high cost limit their applicability to small, specialized samples and restrict access to well-funded...
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sg-ntu-dr.10356-1608892022-08-05T05:12:11Z Optical characterization of grain orientation in crystalline materials Gaskey, Bernard Hendl, Ludwig Wang, Xiaogang Seita, Matteo School of Mechanical and Aerospace Engineering School of Materials Science and Engineering Engineering::Mechanical engineering Directional Reflectance Crystal Orientation Mapping Characterizing crystallographic orientation is essential for assessing structure-property relationships in crystalline solids. While diffraction methods have dominated this field, low throughput and high cost limit their applicability to small, specialized samples and restrict access to well-funded research institutions. We develop a complementary method that expands applicability and broadens access. We demonstrate crystal orientation mapping over centimeter-scale surfaces using nothing more than a conventional optical microscope and commercial laptop. Our approach relies on a novel analysis method that correlates crystal lattice orientation to optical reflectance of specially etched surfaces. We successfully apply the method to metal and semiconductor surfaces. The simplicity, low cost, and enhanced sample throughput of our method promise to expand the availability of crystallographic orientation mapping significantly, making it readily available in education as well as academic research and industrial settings. Ministry of Education (MOE) Published version This research was funded by the Ministry of Education of Singapore, Official Number: MOE2017-T2-2-119. 2022-08-05T05:12:11Z 2022-08-05T05:12:11Z 2020 Journal Article Gaskey, B., Hendl, L., Wang, X. & Seita, M. (2020). Optical characterization of grain orientation in crystalline materials. Acta Materialia, 194, 558-564. https://dx.doi.org/10.1016/j.actamat.2020.05.027 1359-6454 https://hdl.handle.net/10356/160889 10.1016/j.actamat.2020.05.027 2-s2.0-85086002064 194 558 564 en MOE2017-T2-2-119 Acta Materialia © 2020 The Authors. Published by Elsevier Ltd on behalf of Acta Materialia Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) application/pdf |
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Engineering::Mechanical engineering Directional Reflectance Crystal Orientation Mapping Gaskey, Bernard Hendl, Ludwig Wang, Xiaogang Seita, Matteo Optical characterization of grain orientation in crystalline materials |
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Characterizing crystallographic orientation is essential for assessing structure-property relationships in crystalline solids. While diffraction methods have dominated this field, low throughput and high cost limit their applicability to small, specialized samples and restrict access to well-funded research institutions. We develop a complementary method that expands applicability and broadens access. We demonstrate crystal orientation mapping over centimeter-scale surfaces using nothing more than a conventional optical microscope and commercial laptop. Our approach relies on a novel analysis method that correlates crystal lattice orientation to optical reflectance of specially etched surfaces. We successfully apply the method to metal and semiconductor surfaces. The simplicity, low cost, and enhanced sample throughput of our method promise to expand the availability of crystallographic orientation mapping significantly, making it readily available in education as well as academic research and industrial settings. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Gaskey, Bernard Hendl, Ludwig Wang, Xiaogang Seita, Matteo |
format |
Article |
author |
Gaskey, Bernard Hendl, Ludwig Wang, Xiaogang Seita, Matteo |
author_sort |
Gaskey, Bernard |
title |
Optical characterization of grain orientation in crystalline materials |
title_short |
Optical characterization of grain orientation in crystalline materials |
title_full |
Optical characterization of grain orientation in crystalline materials |
title_fullStr |
Optical characterization of grain orientation in crystalline materials |
title_full_unstemmed |
Optical characterization of grain orientation in crystalline materials |
title_sort |
optical characterization of grain orientation in crystalline materials |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/160889 |
_version_ |
1743119464208007168 |