Experimental Evidence of Acoustic Shock Wave-Induced Dynamic Recrystallization: A Case Study on Ammonium Sulfate

Abstract

Here, we present the findings of acoustic shock wave processing inflicted on ammonium sulfate powder samples and demonstrate the unique phenomenon of dynamic recrystallization occurring because of the superheating of the surface within the span of milliseconds. The results of X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) clearly reveal the linear enhancement of the intensity ratio of the planes ( 200)/( 120) and ( 200)/(111) under shocked conditions, and the observed results of dynamic recrystallization are highly relevant to the attachment energy theory of crystallization.

Evaporating crystallization effect of ammonium sulfate at atmospheric pressure under the action of ultrasound

“…2 Effect of ultrasound power on the quality of recovered crystals and transformation time(a), on crystal particle size(b), crystal plane (c) and micromorphology (e) of the ammonium sulfate. The orthorhombic structure with nomenclature of specific faces of ammonium sulfate(d) [22] . …”