About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
Design of New High Entropy Ceramics in the Pseudo-binary System RGaO3-R2Ti2O7 |
Author(s) |
Victor Emmanuel Alvarez Montano, Francisco Brown, Subhash Sharma, Jorge Mata Ramirez, Ofelia Hernández Negrete, Javier Hernandez Paredes, Alejandro Durán |
On-Site Speaker (Planned) |
Victor Emmanuel Alvarez Montano |
Abstract Scope |
In the last years, high entropy ceramics (HECs) compounds have attracted significant attention due to unique chemical compositions and crystal structures which make them potential useful functional materials. One of them is the RGa1/3Ti2/3O10/3 (R: rare earth element) ceramic layered compound, which comes from the pseudo-binary system RGaO3-R2Ti2O7 partial solid solution. In this work, we design a single phase of (Lu0.2Yb0.2Tm0.2Er0.2Ho0.2)Ga1/3Ti2/3O10/3 high entropic ceramic compound. This compound was synthesized by the solid-state reaction method and by means of several thermal treatments at high temperatures. The phase stability was determined using X-ray Powder Diffractometry analysis (XRD). The morphology and cation distribution in the lattice was identified using Scanning Electron Microscopy (SEM) and Elemental Mapping. In addition, the dielectric behavior of samples submitted under several heating treatments is presented. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Characterization, Powder Materials |