Anisothermal densification kinetics of cold sintering process below 150°C

Cold sintering is an emerging non-equilibrium process methodology that densifies ceramic powders at significantly reduced temperatures. This study proposes a fundamental framework to investigate its densification kinetics. By controlling four densification process variables including transient chemistry, sintering temperature, uniaxial pressure and dwell time, anisothermal sintering kinetics of highly densified ZnO is identified and phenomenologically modeled for its relative activation energetics.