About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials
|
Presentation Title |
On the Correlation of Dynamic Compressive Failure and Fragmentation with Flaw Distributions in an Advanced Ceramic |
Author(s) |
Arezoo Zare, Kshitiz Upadhyay, Kevin Hu, Elizabeth Hsieh, Qi Rong Yang, Kent Christian, Jun Du, Richard Haber, Matthew Shaeffer, K.T. Ramesh |
On-Site Speaker (Planned) |
Arezoo Zare |
Abstract Scope |
During the last few decades, structural ceramics have received attention as promising contenders in various industrial applications including aerospace and defense. These commercially available ceramics typically have heterogenous microstructures containing a distribution of sizes and spacings of processing-induced microstructural flaws (e.g., secondary inclusions). These microstructural heterogeneities govern the underlying mechanisms of brittle fracture and fragmentation and thus dictate material’s mechanical response. By studying boron carbide (B4C) as a model ceramic, this study strives to establish an understanding of the correlation between flaw distributions and dynamic compressive brittle fracture and fragmentation. A compression Kolsky bar setup with in-situ high-speed microscopy/imaging is used to study uniaxial dynamic failure of various hot-pressed B4C ceramics that contain different flaw sizes and spacings. The findings are correlated with the statistical analysis of materials microstructures using scanning electron microscopy. Fragmentation is also studied via a data-science approach to analyze optical microscopy images of the resulting fragments. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Characterization, Mechanical Properties |