Pennie & Edmonds
Process for preparing NbN superconducting material
 Process for preparing NbN superconducting material, characterized in that a bulk Nb is placed in powder including at least one metal which can be nitriding-burned, and then the powder is heated to be nitriding-burned in pressurized N.sub.2 atmosphere so that the bulk Nb is nitrided by the nitriding-burning of the powder. 
Sumitomo Electric Industries, Ltd.
C C Y C Y H
C01B C01P Y10S C01P Y10S H01L
inventional additional additional additional additional inventional
Manshi Kimiaki Osamu Hiroshi Yoshinari Mitsue Ichiro
Ooyanagi Tanihata Yamada Yamashita Miyamoto Koizumi Matsubara