| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
|
| Presentation Title |
Macro-equimolar high entropy spinel thin films by pulsed laser deposition |
| Author(s) |
Anu Mohan, Adityanarayan Pandey, Ashutosh Suresh Gandhi |
| On-Site Speaker (Planned) |
Ashutosh Suresh Gandhi |
| Abstract Scope |
Macro-equimolar spinels exhibit an array of interesting optical and dielectric properties. We have successfully deposited 8-component high entropy spinel thin films by single-target pulsed laser deposition (PLD). The effects of substrate temperature on microstructure of (CoCrCuFeMgMnTiZn)<sub>3</sub>O<sub>4-x</sub> thin films were studied by XRD and TEM. EDS mapping confirmed the homogenous distribution of the cations. The phase and orientation maps obtained using PED verified the spinel phase and the absence of secondary phases. The columnar grain growth was influenced by the deposition conditions. The cation distribution and defect structure were elucidated using XPS. Nanoindentation hardness and Young’s modulus were comparable to those of bulk material, but their dielectric behavior differs from that of sintered bulk forms. This study illustrates the opportunities in processing and applications of high entropy spinel oxide thin films. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Thin Films and Interfaces, High-Entropy Alloys |