About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Defects and Interfaces: Modeling and Experiments
|
Presentation Title |
Interfacial Fracture Energy Measurements of Ceramic/Metal Interfaces Using Novel Bending Geometries |
Author(s) |
Saim Abbas, Sanjay Sampath, Sudhanshu Mallick, Nagamani Jaya Balila |
On-Site Speaker (Planned) |
Nagamani Jaya Balila |
Abstract Scope |
Two novel interfacial fracture energy measurement techniques: modified cantilever beam and modified clamped beam with Digital Image Correlation are presented. The geometries are optimized using J-integral calculations in a finite element model. They are used to measure the interface fracture energy of thermal spray YSZ coatings on steel in terms of the critical energy release rate, Gc. The results of both the geometries are compared with their advantages and limitations. Further, the modified cantilever is used to determine the effect of substrate roughness and substrate thickness on the interface fracture energy of the ceramic/metal system. Being a high throughput test, it is possible to generate sufficient data from one sample to ascertain the variability in these measurements. Reasons for the trends observed are discussed and optimum value of substrate roughness and substrate thickness to achieve the best interfacial fracture resistance are proposed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Modeling and Simulation, Other |