B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
31/121, 117/45
B01J 13/02 (2006.01) B22F 1/02 (2006.01) B22F 9/12 (2006.01) C23C 14/22 (2006.01)
Patent
CA 1150112
ABSTRACT OF THE DISCLOSURE A particulate material can be dispersed by the application of electrostatic fields. The phenomena, referred to as "electrodispersion" is the dispersion by an intense electric field of part of a static bed of powder into a stable cloud of rapidly moving particles, and the maintenance of a dynamic equilibrium between the static and dispersed phases. The density of the dispersed cloud of particles varies with a number of factors, including the field strength and the nature of the powder. The electrodeposition effect is employed to produce a uniform and durable coating of controlled thickness on the individual particles, by the generation of a vapour of the desired coating - typically a metal or semiconductor material - and allowing the vapour to permeate the dispersed particles. The electric field ensures that only the particles are coated, and the dispersed particles, having the same charge, repel each other, avoiding agglomeration. Potential applications include the manufacture of high performance catalysts wherein expensive metals like platinum are vapour-coated onto an inexpensive metal powder. Other possibilities include the production of graphite-coated metal particles for making self-lubricating metal components such as bearings and shafts, and the manufacture of slow dissolving coatings on pharmaceutical powders.
375794
Morton David H.
Potter Edmund C.
Szirmai Stephen G.
Smart & Biggar
Unisearch Limited & Commonwealth Scientific And Industrial Resea
LandOfFree
Vapour coating of particles dispersed by application of an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vapour coating of particles dispersed by application of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vapour coating of particles dispersed by application of an... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-33541