Creeping up in Growth of Crystal from Solution

Single crys tals have been grown rrom ancient Egypt.Crys tal growth Slall ... u ... I •• ~ • • . 1 " - •• v •• ,1940 until now. Four melt.odS have been used to prepare singlecrys tal s: gr~-rr-onrsOlu tiOn, melt, vapour, and solid. Everymetho~its own advantage, disadva nlagea nd problems. Oneof the problems in growth from solution is creeping up.Creeping up is undesirable growth or thin layer on the wallof crystal growth bath. Sometimes this layer grows very rapid andso fills the bath, and prevents growth . In this paper, thesesubjects are consideredl. Why does creeping up occure?2. What parameter affect on it?3. What in the best way ror its prevention?Experi ments show that creeping up is arrected by wettingang le between solution a nd bath wall, viscosity of solution,agitation, additives, and shape of bath.