Effect of particle breakage conditions on child particle aspect ratio

Growth of Abraded Crystals Tracked in Three Dimensions

“…The shape of crystals is not only important to yield certain product features, , but it is also an important process parameter. − Crystal shape engineering ,− has emerged from the need to control the shape of crystals. Crystal shape is often described using a geometric characteristic, which is often a shape factor, such as aspect ratio. − There are also approaches in which another geometric measure, such as surface area, is used as a proxy for shape . However, complex crystal shapes are usually not well described by such representations.…”

“…Crystallizers are often agitated to suspend crystals and to equalize concentration and temperature gradients. Agitation imposes mechanical stress on crystals, leading to attrition, abrasion, and breakage, which can result in nonideal crystal shapes. ,, We use the term attrition for damage events that are caused by the impact of crystals with reactor components, such as the stirrer. In contrast to breakage, the size of a crystal is largely preserved during attrition.…”

“…Attrition, − abrasion, − and breakage , have been quite well studied individually. In most studies, damage events are only considered to reduce size.…”