IN-SITU SYNTHESIS AND DEPOSITION OF HIGH ENTROPY ALLOY AND MULTI METAL OXIDE NANO/MICRO PARTICLES BY FEMTOSECOND LASER DIRECT WRITING

摘要

A method for synthesizing and simultaneously depositing and coating one or more layers of mixed metals to obtain one or more layers of high entropy alloys (HEAs) includes depositing a first metal precursor ink and drying the first metal precursor ink to obtain a first precursor film layer, applying a laser-direct writing (LDW) with pulsed laser source to the first precursor film layer to obtain a first layer of HEA, and rinsing the first layer of HEA with water to remove un-sintered precursor film to obtain one or more layers of HEAs. The first layer of HEA has a first metal corresponding to the first metal precursor. The one or more layers of HEAs includes a predetermined pattern of one or more layers, and the one or more layers may have a single metal or multiple metals.