| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments III
|
| Presentation Title |
Microstructural Effects and Mechanical Characteristics of Novel Ti-BN Coatings Post-Space Irradiation Exposure on the International Space Station
|
| Author(s) |
Abhijith Kunneparambil Sukumaran, Sara Rengifo, William Scott, Sang Hyon Chu, Cheol Park, Michael Renfro, Sudipta Seal, Arvind Agarwal |
| On-Site Speaker (Planned) |
Abhijith Kunneparambil Sukumaran |
| Abstract Scope |
Novel multi-functional Ti-BN coatings were developed using atmospheric and vacuum plasma spray techniques to serve as protective coatings on aerospace structures for future Lunar and Martian missions. Coatings were exposed to space irradiation and atmospheric oxygen in the International Space Station (ISS) as part of the MISSE-17 (Materials in International Space Station Experiments) program for 171 days. The coatings underwent extensive microstructural and mechanical characterizations, such as SEM and HRTEM, to examine the effects of space radiation and atmospheric oxygen on microstructural changes, including the formation of dislocation clusters, black dot defects, and radiation-induced hardening. XPS was utilized to provide a quantitative analysis of the elemental composition, surface chemistry, and chemical state of the coatings post-irradiation. Nanomechanical studies were conducted to assess any changes in hardness and elastic modulus post-irradiation. Additionally, neutron shielding tests were performed to evaluate the efficiency of the coating's neutron shielding properties after space exposure. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Titanium, Other |