Process for diffusing titanium and nitride into a material...

Details Process for diffusing titanium and nitride into a material... Process for diffusing titanium and nitride into a material...

2006-04-18

2008-10-21

La Villa, Michael (Department: 1794)

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

C148S212000, C148S228000, C148S231000, C148S238000, C148S317000, C427S376600, C427S383300, C427S436000

Reexamination Certificate

active

07438769

ABSTRACT:
A method for diffusing titanium and nitride into a base material having a coating thereon using conventional surface treatments or coatings. The method generally includes the steps of providing a base material having a coating thereon; providing a salt bath which includes sodium dioxide and a salt selected from the group consisting of sodium cyanate and potassium cyanate; dispersing metallic titanium formed by electrolysis of a titanium compound in the bath; heating the salt bath to a temperature ranging from about 430° C. to about 670° C.; and soaking the base material in the salt bath for a time of from about 10 minutes to about 24 hours. In accordance with another aspect of the present invention, titanium and nitride may be diffused into a base material without a coating. The treated base material may further be treated with conventional surface treatments or coatings.

REFERENCES:
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patent: 4019928 (1977-04-01), Beyer et al.
patent: 4332653 (1982-06-01), Satoh
patent: 4492604 (1985-01-01), Muller et al.
patent: 6645566 (2003-11-01), Ko
patent: 6881498 (2005-04-01), Cooper et al.

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