Characterization Of Multi-layered Fish Scales (Atractosteus spatula) Using Nanoindentation,X-ray CT,FTIR, and SEM |
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Authors: | Paul G. Allison Rogie I. Rodriguez Robert D. Moser Brett A. Williams Aimee R. Poda Jennifer M. Seiter Brandon J. Lafferty Alan J. Kennedy Mei Q. Chandler |
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Affiliation: | 1.Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center;2.Department of Mechanical Engineering, University of Alabama;3.Environmental Laboratory, U.S. Army Engineer Research and Development Center |
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Abstract: | The hierarchical architecture of protective biological materials such as mineralized fish scales, gastropod shells, ram’s horn, antlers, and turtle shells provides unique design principles with potentials for guiding the design of protective materials and systems in the future. Understanding the structure-property relationships for these material systems at the microscale and nanoscale where failure initiates is essential. Currently, experimental techniques such as nanoindentation, X-ray CT, and SEM provide researchers with a way to correlate the mechanical behavior with hierarchical microstructures of these material systems1-6. However, a well-defined standard procedure for specimen preparation of mineralized biomaterials is not currently available. In this study, the methods for probing spatially correlated chemical, structural, and mechanical properties of the multilayered scale of A. spatula using nanoindentation, FTIR, SEM, with energy-dispersive X-ray (EDX) microanalysis, and X-ray CT are presented. |
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Keywords: | Bioengineering Issue 89 Atractosteus spatula structure-property relation nanoindentation scan electron microscopy X-ray computed tomography Fourier transform infrared (FTIR) spectroscopy |
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