Anti-oxidant barrier for carbon based material

Details Anti-oxidant barrier for carbon based material Anti-oxidant barrier for carbon based material

1987-04-23

1989-04-25

Terapane, John F.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428565, 373 88, H05B 706

Patent

active

048247332

ABSTRACT:
There is described a coating providing an anti-oxidant barrier for carbon based material against oxidation at high temperature (temperature higher than 500.degree. C.), more particularly for graphite electrodes used in electric arc furnaces. The coating comprises at least a first layer of metallic titanium or titanium alloy which is applied directly on the carbon-based material, e.g. graphite, and a second layer which comprises a mixture of silicon carbide and aluminum alloy, the second layer being applied on the first layer. This coating substantially extends the life of the carbon-based material. There is also disclosed a method of producing this coating by applying the two layers onto a carbon-based material such as graphite.

REFERENCES:
patent: 3348929 (1967-10-01), Valtschev et al.
patent: 3476586 (1969-11-01), Valtchev et al.
patent: 3553010 (1971-01-01), Rubisch
patent: 4383321 (1983-05-01), Schieber et al.

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