About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advances in Materials and Systems for a Hydrogen Economy
|
| Presentation Title |
High temperature steam corrosion of single component and high entropy rare-earth phosphates |
| Author(s) |
Bishnu Pada Majee, Keith Pada Bryce, Liping Pada Huang, Jie Lian |
| On-Site Speaker (Planned) |
Jie Lian |
| Abstract Scope |
Materials for Hydrogen combustion are utilized in more severe conditions of higher combustion temperatures (up to 1500 °C), steam corrosion, and higher heat flux. Advanced materials and coatings are needed to withstand high temperature steam corrosion and mitigate hydrogen embrittlement for hydrogen combustion. Multicomponent and high entropy materials may hold potentials as advanced materials and coating to extend their performance and enhance the structural integrity in hydrogen environment. In this talk, single component and high entropy rare-earth phosphates were explored as potential candidates of environmental/hydrogen barrier coatings for aerospace and hydrogen environments. Their high temperature steam corrosion resistance was investigated at 1400 °C for 60 hours with the focus on microstructural evolution, new phase formation, reaction layer thickness, and mass loss. High entropy materials in general display enhanced resistance against high temperature steam corrosion as a result of the enhanced structural stability from their compositional complexity and size disordering. |