A novel Multi‐Phase Flash Sintering (MPFS) technique for 3D complex‐shaped ceramics
- Others:
- Universidad de Sevilla. Departamento de Ingeniería Química
- Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
- Universidad de Sevilla. Departamento de Química Inorgánica
- Universidad de Sevilla. TEP-110 Reactividad de Sólidos
- Universidad de Sevilla. FQM253: Electrohidrodinámica y Medios Granulares Cohesivos
- Spanish Government Agency Ministerio de Ciencia, Innovación y Universidades and FEDER project CTQ2017–83602-C2–1-R
- Spanish Government Agency Ministerio de Ciencia, Innovación y Universidades and FEDER project CTQ2017–83602-C2–2-R
- Junta de Andalucía-Consejería de Conocimiento, Investigación y Universidad and FEDER project P18-FR-1087
- Junta de Andalucía-Consejería de Conocimiento, Investigación y Universidad and FEDER project US-1262507
Description
This work demonstrates the first proof-of-concept of Multi-Phase Flash Sintering (MPFS). This novel tech- nique essentially consists of applying a rotating electric field to the sample by means of a multi-phase voltage source as furnace temperature increases. Several ceramic materials with different types of elec- trical conductivities are sintered within seconds at furnace temperatures much lower than those used for traditional DC flash sintering due to the higher power densities administered by a multi-phase power supply. Thus, ceramic materials are flashed at relatively lower applied voltages which minimizes un- desired phenomena such as localization and preferential current pathways. Furthermore, MPFS allows diverse electrode configurations to promote a more uniform electric field distribution, enhancing the sin- tering of 3D complex-shaped specimens. MPFS could be a true breakthrough in materials processing, as 3D complex-shaped specimens are homogeneously sintered at reduced temperatures, while keeping all the advantages of conventional flash sintering.
Additional details
- URL
- https://idus.us.es/handle//11441/141351
- URN
- urn:oai:idus.us.es:11441/141351
- Origin repository
- USE