Plasma surface treatment using dielectric barrier discharges
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United States of America Patent
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Sep 11, 2012
Grant Date -
Jun 19, 2008
app pub date -
Jul 31, 2007
filing date -
Jul 31, 2006
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Abstract
A process for the in-flight surface treatment of powders using a Dielectric Barrier Discharge Torch operating at atmospheric pressures or soft vacuum conditions is described herein. The process comprising feeding a powder material into the Dielectric Barrier Discharge Torch yielding powder particles exhibiting a reduced powder agglomeration feature; in-flight modifying the surface properties of the particles; and collecting coated powder particles. An apparatus for surface treating micro- and nanoparticles comprising a Dielectric Barrier Discharge Torch operating at atmospheric pressure or soft vacuum conditions is also described herein.
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