NSUF 17-978: Micromechanical properties of interfacial elements in advanced SiC composite and its environmentally protective coatings
Silicon carbide (SiC) has been demonstrated as a highly capable engineering material for nuclear energy. Continuous SiC fiber-reinforced SiC-matrix (SiC/SiC) composites are particularly attractive for their tailorable, predictable, and reliable mechanical properties and excellent damage tolerance. Such advantages of the SiC/SiC composites are enabled by the fiber-matrix interface. This project will determine the interfacial mechanical properties in the SiC/SiC composites in unirradiated and irradiated conditions by novel micro-mechanical test methods. Mechanical properties of the interface elements in environmentally barrier-coated SiC/SiC composites will be determined in a similar manner. The results will be analyzed in relation with the microstructural evolutions in the interface elements during the neutron irradiation. These innovative and unique experiments will provide useful information of true bonding strength and sliding stresses at interfaces, the essential constitutive properties for the composite and coated materials.
Additional Info
| Field | Value |
|---|---|
| Abstract | Silicon carbide (SiC) has been demonstrated as a highly capable engineering material for nuclear energy. Continuous SiC fiber-reinforced SiC-matrix (SiC/SiC) composites are particularly attractive for their tailorable, predictable, and reliable mechanical properties and excellent damage tolerance. Such advantages of the SiC/SiC composites are enabled by the fiber-matrix interface. This project will determine the interfacial mechanical properties in the SiC/SiC composites in unirradiated and irradiated conditions by novel micro-mechanical test methods. Mechanical properties of the interface elements in environmentally barrier-coated SiC/SiC composites will be determined in a similar manner. The results will be analyzed in relation with the microstructural evolutions in the interface elements during the neutron irradiation. These innovative and unique experiments will provide useful information of true bonding strength and sliding stresses at interfaces, the essential constitutive properties for the composite and coated materials. |
| Award Announced Date | 2017-04-26T10:12:10.753 |
| Awarded Institution | Center for Advanced Energy Studies |
| Facility | Microscopy and Characterization Suite |
| Facility Tech Lead | Alina Zackrone, Peter Hosemann, Yaqiao Wu |
| Irradiation Facility | None |
| PI | Yutai Katoh |
| PI Email | [email protected] |
| Project Type | RTE |
| RTE Number | 978 |