Ruthenium aluminum intermetallic compounds

Details Ruthenium aluminum intermetallic compounds Ruthenium aluminum intermetallic compounds

1989-12-26

1991-04-30

Dean, R.

Metal treatment

Stock

Noble metal base

148437, 420462, 420528, C22C 2100

Patent

active

050115545

ABSTRACT:
Intermetallic compounds of ruthenium and aluminum are disclosed comprising about 40 to 51 atomic percent aluminum and the balance substantially ruthenium. The intermetallic compounds have a high hardness up to about 1150.degree. C. and have good room temperature toughness. Hardness is improved by scandium additions up to about 7 atomic percent. Hardness is improved while maintaining good room temperature toughness by boron additions up to about 1 atomic percent.

REFERENCES:
"Development Potential of Advanced Intermetallic Materials", Interim Technical Report No. 12, Contract No. F33615-86-C-5055, R. L. Fleischer.
"Development Potential of Advanced Intermetallic Compounds", Interim Technical Report No. 9, Contract No. F33615-86-C-5055, R. L. Fleischer.

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