The basic NiAl material is modified with an additional of the material such as cobalt which produces a structure which is susceptible to...http://www.google.com/patents/US4961905?utm_source=gb-gplus-sharePatent US4961905 - Nickel aluminide materials having toughness and ductility at low temperaturesAdvanced Patent SearchPublication numberUS4961905 APublication typeGrantApplication numberUS 07/283,