Electric heating – Metal heating – By arc
Patent
1991-11-15
1994-11-29
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912137, 21912148, 21912143, 373 18, 373 19, 75 1019, B23K 900
Patent
active
053692411
ABSTRACT:
An apparatus and method for the synthesis of ultra-free (submicron) ceramic carbides in a thermal plasma torch reactor using primarily silica, boron oxide, titanium dioxide or other oxides as metal sources and methane as a reductant. A plasma torch operated with both argon and helium as plasma gases and having methane as a primary carrier gas is connected to the plasma reactor for providing the heat necessary to carry out the reaction. A collection chamber with both interior and exterior cooling is connected to the reactor for quenching of the reactants. Cooling is provided to the torch, the reactor and the collection using coils, baffles and jackets.
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Pirzada Shahid A.
Taylor Patrick R.
Idaho Research Foundation
Paschall Mark H.
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