METHOD AND APPARATUS FOR ATMOSPHERIC PRESSURE PLASMA JET COATING DEPOSITION ON A SUBSTRATE
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United States of America Patent
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Issued Date -
Dec 28, 2023
app pub date -
Sep 1, 2023
filing date -
Sep 1, 2023
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Abstract
A method for plasma coating an object includes an object profile, having the steps of: a) manufacturing a replaceable shield comprising a jet inlet, a nozzle outlet and a sidewall extending from the jet inlet to the nozzle outlet, wherein the nozzle outlet includes an edge essentially congruent to at least part of the object profile; b) detachably attaching the replaceable shield to a jet outlet of a plasma jet generator, c) placing the object at the nozzle outlet such that the object profile fits closely to the nozzle outlet edge; d) plasma coating the object with a low-temperature, oxygen-free plasma at an operating pressure which is higher than the atmospheric pressure by providing a plasma jet in the shield via the plasma jet generator and injecting coating precursors in the plasma jet in the shield.
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