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Stories Tagged with "seminar" from 2003

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2003
Drugs, food, cosmetics, ceramics, electronics, and specialty chemicals--these products and others are all made up of particles. Making those particles smaller can drastically and significantly affect the properties of such products, sometimes resulting in unique "added value" both to the particles and the end product.   Kicking off the first of an eight-lecture series sponsored by NJIT's mechanical engineering department, Prof. Rajesh N. Dave will speak on that topic September 24, from 4 p.m. to 5:30 p.m. at the Mechanical Engineering Center, Rm 224.  The title of his address is "Synthesis and Processing of Engineered Particulates."   As the director of the New Jersey Center for Engineered Particulates at NJIT, Dave is an expert on engineered particulates. The center's research is focused on producing three types of such engineered particulates. These are coated particles that have a layered or ordered structure, "designer" particles with controlled size or structure, and composite particles with a homogeneous structure.   A major focus of Dave's talk will be coated particles. Materials with relatively large particle size form a core, making them "host" particles. These "host" particles can then be mechanically coated with "guest" particles, of fine submicron size. No liquid of any kind, either solvents, binders, or water, is needed. Dave will review a number of different devices used to achieve dry particle coating, giving examples to illustrate how this approach can create materials with novel or enhanced properties. Using supercritical-fluid-based techniques, particles as small as 20 nanometers can be coated. Finally, Dave will discuss discrete-element-method-based modeling of these processes.   Dave received his undergraduate degree in mechanical engineering from the Indian Institute of Technology in Bombay and his master's and doctorate degrees from Utah State University. His NJIT research is supported through federal, state, and industrial awards totaling more than $7 million. >>