About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Reaction-formed oxide/metal composites tailored for resistance to high-temperature fracture, creep, oxidation, and thermal cycling |
| Author(s) |
Camilla K. McCormack, Joseph C. Flanagan, Yujie Wang, Mohammad Bidabadi, Sunghwan Hwang, Alina LaPotin, Mario Caccia, Saeid Kakooei, Marc Portnoff, Asegun Henry, Kevin P. Trumble, Kenneth H. Sandhage |
| On-Site Speaker (Planned) |
Kenneth H. Sandhage |
| Abstract Scope |
Oxide/metal composites can exhibit attractive combinations of high-temperature properties. However, proper care is required to select oxide and metal phases that are chemically, thermally, and mechanically compatible with each other and with the conditions to which the composite is exposed. The scalable processing of composite components with appropriate microstructures in desired shapes is also needed to enable use of such composites in particular high-temperature applications.
Dense Al2O3/Cr composites, comprised of fine (<5 µm) Cr domains uniformly dispersed within Al2O3 matrices, have been generated in this work by reaction forming. Such composites have exhibited excellent resistance to high-temperature fracture, creep, and oxidation, and to thermal cycling, for use in heat exchangers. The fabrication of dense Al2O3/Cr heat exchanger plates with tailorable channel patterns by reaction forming, the diffusion bonding of such plates to each other, and the joining of such composite plates to structural metal alloys, will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Composites, High-Temperature Materials |