About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
High Entropy Materials: Concentrated Solid Solution, Intermetallics, Ceramics, Functional Materials and Beyond
|
| Presentation Title |
High-entropy Sesquioxide Transparent Ceramics with Up-conversion Functionality |
| Author(s) |
Iva Milisavljevic, Guangran Zhang, Yiquan Wu |
| On-Site Speaker (Planned) |
Guangran Zhang |
| Abstract Scope |
High-entropy materials are a new field of research involving entropy stabilized single-phase solid solutions with at least five equal molar elements. High-entropy sesquioxide transparent ceramics in equal molar and nearly equal molar were successfully fabricated by vacuum sintering to reach a relative density of 99.98%. Their thermal, optical and luminescence properties were investigated and discussed. The highest in-line transmittance in visible and IR range is nearly 80%. By adding luminescence ions, the high-entropy ceramics show an up-conversion emission. Such a high-entropy transparent ceramics could be realized in multiple sesquioxide composition systems. By incorporating the high-entropy principle with transparent ceramics will largely broaden the family of optical ceramics. |