| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Euplectella Aspergillum: Multiscale Structural Characterization, Quantification and Micromechanical Properties |
| Author(s) |
Swapnil Morankar, Arun Singaravelu, Sridhar Niverty, Jason J. Williams, Yash Mistry, Clint A. Penick, Dhruv Bhate, Nikhilesh Chawla |
| On-Site Speaker (Planned) |
Swapnil Morankar |
| Abstract Scope |
Many biological materials exhibit unique structures and lattice designs that can be utilized to develop next generation lightweight structural materials. A deep-sea sponge, the Venus Flower Basket (Euplectella aspergillum), is one such example. Its hierarchical structure makes it stiff, tough and damage tolerant, despite being made up of glassy silica. In order to understand the structure of E. aspergillum, a unique correlative microscopy-based approach was used. Lab scale X-ray tomography was used to investigate the structural assembly at multiple length scales and to extract key structural parameters (lattice structure, cell size, thickness of cell edges, etc.). An algorithm was developed to virtually unwrap the cylindrical skeletal wall of E. aspergillum (three-dimensional to two-dimensional). Scanning electron microscopy, nanoindentation, and tensile testing of fibers were used to characterize the nanoscale structural and micromechanical behavior of individual fibers and will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Characterization, Mechanical Properties |