Metal treatment – Process of modifying or maintaining internal physical... – Carburizing or nitriding using externally supplied carbon or...
Patent
1992-01-10
1994-03-15
Wyszomierski, George
Metal treatment
Process of modifying or maintaining internal physical...
Carburizing or nitriding using externally supplied carbon or...
148220, 148224, 219678, 427553, 427595, C21D 109
Patent
active
052942643
ABSTRACT:
A method of nitriding a refractory-nitride forming metal or metalloid articles and composite articles. A consolidated metal or metalloid article or composite is placed inside a microwave oven and nitrogen containing gas is introduced into the microwave oven. The metal or metalloid article or composite is heated to a temperature sufficient to react the metal or metalloid with the nitrogen by applying a microwave energy within the microwave oven. The metal or metalloid article or composite is maintained at that temperature for a period of time sufficient to convert the article of metal or metalloid or composite to an article or composite of refractory nitride. In addition, a method of applying a coating, such as a coating of an oxide, a carbide, or a carbo-nitride, to an article of metal or metalloid by microwave heating.
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Dykes Norman L.
Holcombe Cressie E.
Omatete Ogbemi O.
Tiegs Terry N.
Young Albert C.
Adams Harold W.
Ericson Ivan L.
Griffin J. Donald
Martin Marietta Energy Systems Inc.
Wyszomierski George
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