| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Powder and Ceramic Materials Science
|
| Presentation Title |
Dielectrophoretic Control of Ceramic Particles for Fabrication of Ice-templated Structures |
| Author(s) |
Bharath Gundrati, Sashanka Akurati, Shizhi Qian, Dipankar Ghosh |
| On-Site Speaker (Planned) |
Bharath Gundrati |
| Abstract Scope |
Under AC electric field, mutual dielectrophoretic (DEP) forces between particles create particle chaining. Dielectrophoresis (DEP) is adopted for the first time to control ceramic particles in the ice-templating process, which can benefit from employing DEP forces to externally control the fabrication of ceramic materials with directional porosity and hierarchical structure. To this end, it is crucial to understand the interactions between ceramic particles in aqueous media and AC electric field. The dynamic interactions of ceramic particles under AC electric field are modelled using the iterative dipole moment (IDM) method, which was first validated by the Maxwell stress tensor (MST) method. The IDM method has the capability to simulate the field-particle interactions and formation of particle chains for large number of ceramic particles in aqueous media. The DEP assembly of ceramic particles is investigated as functions of the frequency of the applied electric field, size and electric properties of ceramic particles. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Modeling and Simulation, Other |