Apparatus for production of nanosized particulate matter by vaporization of solid materials
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United States of America Patent
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May 21, 2002
Grant Date -
N/A
app pub date -
Feb 25, 2000
filing date -
Feb 26, 1999
priority date (Note) -
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Abstract
There is disclosed an apparatus for production of nanosized particulate matter by vaporization of solid materials, comprising a first chamber (14), a vacuum pump (15) connected to the first chamber (14), a body (2) inserted in the first chamber (14), a cavity (3) formed in the body (2), means (7, 9) for in-feeding a gas flow (8) to the cavity (3), an anode (4) and a cathode (5) partly inserted in the cavity (3), a power supply (6) to apply a voltage between the anode (4) and cathode (5), and a nozzle (11) communicating with the cavity (3) and conveying a beam (12) of particles consisting of vaporized material from the cathode (5), the cathode (5) being disposed facing the gas flow (8) to intercept the latter, and the anode (4) and cathode (5) being positioned so as to allow propagation of an electrical discharge to the gas flow (8) and ionization of the gas itself.
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