Nikaido, Marmelstein, Murray & Oram LLP
Sintering method for tungsten-nickel-manganese type heavy alloy
 A sintering method for a W--Ni--Mn type heavy alloy, including controlling the deoxidization of tungsten and nickel under an inert atmosphere, changing to a hydrogen atmosphere at above a temperature at which manganese is deoxidized and simultaneously deoxidizing tungsten, nickel and manganese, and sintering by raising the temperature, resulting in the fabrication of a sintered heavy alloy having a 100% relative theoretical density. 
Agency for Defense Development
B B B C
B22F B22F B22F C22C
additional inventional additional inventional
Joon Woong Moon Hee Seong Woon Hyung Eun Pyo Heung Sub
Noh Hong Lee Baek Kim Song