Metal treatment – Process of modifying or maintaining internal physical... – Carburizing or nitriding using externally supplied carbon or...
Patent
1992-02-18
1992-10-13
Wyszomierski, George
Metal treatment
Process of modifying or maintaining internal physical...
Carburizing or nitriding using externally supplied carbon or...
148218, 148220, 148224, 148241, 20415743, 219 1055R, 427585, 427590, C21D 109, H05B 664
Patent
active
051547791
ABSTRACT:
A method of nitriding an article of refractory-nitride-forming metal or metalloids. A consolidated metal or metalloid article is placed inside a microwave oven and nitrogen containing gas is introduced into the microwave oven. The metal or metalloid article 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 is maintained at that temperature for a period of time sufficient to convert the article of metal or metalloid to an article 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.
Tiegs Terry N.
Ericson Ivan L.
Martin Marietta Energy Systems Inc.
Smirman Preston H.
Wyszomierski George
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