|About this Abstract
||MS&T22: Materials Science & Technology
||Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
||Out-of-oven Rapid Fabrication of Entropy Stabilized Oxides Patterned on Carbonaceous Nanomaterials Using Radio Frequency Heating
||Jared Rapp, Lalith Kumar Bhaskar, Ravi Kumar, Aniruddh Vashisth
|On-Site Speaker (Planned)
High entropy oxides (HEOs) are a new class of stable hybrids of different metal oxides, with material properties somewhere between the constituent oxides, or occasionally entirely new properties. One unique quality of HEOs is that their chemical compositions can be adjusted, either by manipulating the element type and ratios, allowing for the fine-tuning of material properties. Currently, the largest limitation of HEOs are their energy intensive fabrication processes that require 1500℃ multiple-hour sintering process. As a result, the development and scale-up of new HEOs has been slow. In this talk, we will present a new HEO fabrication method that couples solution combustion synthesis and radio frequency (RF) rapid heating for energy efficient HEO synthesis. This method reduces the formation temperature of HEOs down in the range of 200℃, allowing for much more efficient fabrication; RF heating allows for out-of-oven synthesis of HEOs in a matter of seconds rather than hours.