Optical characterization of grain orientation in crystalline materials
| Autor: | Matteo Seita, Xiaogang Wang, Ludwig Hendl, Bernard Gaskey |
|---|---|
| Přispěvatelé: | School of Mechanical and Aerospace Engineering, School of Materials Science and Engineering |
| Rok vydání: | 2020 |
| Předmět: |
Diffraction
Directional Reflectance Materials science Polymers and Plastics 02 engineering and technology Crystal structure 01 natural sciences law.invention Optical microscope law 0103 physical sciences Throughput (business) Crystal Orientation Mapping 010302 applied physics Orientation (computer vision) business.industry Metals and Alloys 021001 nanoscience & nanotechnology Engineering physics Electronic Optical and Magnetic Materials Characterization (materials science) Semiconductor Mechanical engineering [Engineering] Ceramics and Composites 0210 nano-technology business Grain orientation |
| Zdroj: | Acta Materialia. 194:558-564 |
| ISSN: | 1359-6454 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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