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Modeling of Macroscopic/Microscopic Transport Phenomena in Zeolite Crystal Solutions Under Microgravity Conditions
Proceedings of the 1996 NASA Microgravity Materials Science Conference: Huntsville, AL
  • Andreas Alexandrou, Worcester Polytechnic Institute
  • Nikos A. Gatsonis, Worcester Polytechnic Institute
  • William W. Durgin, Worcester Polytechnic Institute
  • Albert Sacco, Jr., Worcester Polytechnic Institute
Publication Date
6-10-1996
Abstract

Crystals grown from special liquid solutions find important industrial applications. Most often the physics and chemistry of the growth processes are not well understood due to complex microscopic chemical and thermo-fluid phenomena. Microgravity could help elucidate these phenomena and allow the control of defect concentration and crystal size. We are proposing to study zeolites grown in silica solutions as a typical crystal growth system. By using macroscopic fluid dynamics, coupled with first-principle microscopic fluid physics and advanced particle simulations, we will study: (a) the effect of transport phenomena and nutrient flow under microgravity conditions along with (b) the nucleation process and (c) the microscopic crystal growth dynamics. The macroscopic model will account for the bulk fluid-crystal motions. The microscopic model will include multiple nutrient species and growth sites, and microscopic interactions during the nucleation and crystallization processes. The numerical results will be compared with data we obtained from terrestrial and space experiments.

Citation Information
Andreas Alexandrou, Nikos A. Gatsonis, William W. Durgin and Albert Sacco, Jr.. "Modeling of Macroscopic/Microscopic Transport Phenomena in Zeolite Crystal Solutions Under Microgravity Conditions" Proceedings of the 1996 NASA Microgravity Materials Science Conference: Huntsville, AL (1996) p. 457 - 462
Available at: http://works.bepress.com/wdurgin/37/