| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Seeing is Believing -- Understanding Environmental Degradation and Mechanical Response Using Advanced Characterization Techniques: An SMD Symposium in Honor of Ian M. Robertson
|
| Presentation Title |
Quantitative 3-D Imaging of Damage Evolution in High-temperature Composite Materials, at Temperature under Load, Using In Situ X-ray Computed Micro-tomography with Digital Volume Correlation |
| Author(s) |
Dong (Lilly) Liu, Paul Forna Kreutzer, Jon Ell, Robert Ritchie |
| On-Site Speaker (Planned) |
Dong (Lilly) Liu |
| Abstract Scope |
High-temperature composite materials are becoming increasingly important for applications under extreme conditions. For instance, nuclear-grade graphite has been used as neutron moderator in gas-cooled nuclear reactors and projected for use in next-generation high-temperature designs. Moreover, textile ceramic composites represent the enabling materials for several major ultrahigh-temperature structural applications, in advanced gas-turbine engines, leading edges and contact surfaces for future hypersonic flight vehicles, and as accident tolerant fuel cladding in nuclear fission reactors. As such, life-prediction and damage assessment for their complex architectures presents a formidable challenge as measuring mechanical data and characterizing damage at such temperatures is so difficult. Here we describe the quantitative in-situ evaluation of tensile and fracture toughness properties in a range of materials from nuclear graphite, ceramic-matrix composites and nuclear fuel particles at temperatures above 1000°C, with real-time 3-D damage assessment using synchrotron x-ray micro-tomography and digital volume correlation analysis. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Composites, Ceramics |