Sample couple

Fe-None

Cu-None

Fe-Cu

Temperature, ˚C

1000

900

990

Time, Hr.

14

7

6.5

Additive catalyst

None

Fe

None

Cu

Fe

Cu

Carbon content of sponge iron. %

0.35

0.32

0.59

0.52

0.35

0.41

0.51

0.34