About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Metal Matrix Composites: Processing, Additive Manufacturing, and Applications
|
| Presentation Title |
Copper oxide to copper – copper aluminate interfacing with ice templated stabilized zirconia: a materials processing strategy towards toughened cermet composites and anisotropic heat flow. |
| Author(s) |
Stephen Kevin Heywood, Stephen W Sofie |
| On-Site Speaker (Planned) |
Stephen Kevin Heywood |
| Abstract Scope |
The engineering of mechanical, electrical, and thermal properties in composite materials is normally constrained to isotropic mixing of reinforcement within a matrix. In the case of cermets, brazing alloys are often needed to join ceramic layers together, but are neither ductile, high strength, nor particularly conductive. A demonstration of a continuous 3-3 composite of copper and yttria stabilized zirconia is shown by our group’s research to be capable of hybridizing metal-ceramic properties with an ice – templating, copper oxide solid-solid phase infiltration technique unique to this material system. Ice templated YSZ composites can have pore structures engineered for either isotropic or anisotropic heat conduction when filled with copper oxide then reduced to copper metal. Interfacial bonding of copper to YSZ layers with alumina coating the porous scaffold further improves mechanical interlocking of cermet layers. The result is a toughened, machinable composite for anisotropic or isotropic heat dissipation applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Ceramics, Phase Transformations |