Fe-Ni-Co alloy for a shadow mask

Details Fe-Ni-Co alloy for a shadow mask Fe-Ni-Co alloy for a shadow mask

1992-09-25

1993-08-17

Yee, Deborah

Metal treatment

Stock

Ferrous

420 95, C22C 3808

Patent

active

052365220

ABSTRACT:
In an Fe-base alloy, Ni is contained by 28 to 34% by weight and Co by 2 to 7% by weight with an average grain size of 30 .mu.m or less. 60 to 95% of crystal grains are oriented in a range of .+-.5 to 45 degrees deviated from the ideal orientation of {100} [001]. Resultant low thermal expansion of the alloy assures high doming characteristics of a shadow mask made thereof.

REFERENCES:
patent: 5026435 (1991-06-01), Nakamura et al.

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