Nb or Ta coated with fired Zr-Mo for metal-ceramic seals

Details Nb or Ta coated with fired Zr-Mo for metal-ceramic seals Nb or Ta coated with fired Zr-Mo for metal-ceramic seals

1976-03-05

1978-02-28

Steiner, Arthur J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

75177, 428632, 428662, 428663, B22F 704

Patent

active

040768988

ABSTRACT:
A coating of zirconium is bonded to niobium by applying to the niobium a paint of Mo and Zr powder which is fired above 1520.degree. C but below the zirconium-niobium liquidus temperature of 1740.degree. C. Such coating is used in making an improved seal by juxtaposing the metal body to the ceramic body, applying a powdered alumina sealing glass or frit and firing to the melting temperature of the frit.

REFERENCES:
patent: 3046650 (1962-07-01), Heestand et al.
patent: 3448319 (1969-06-01), Louden
patent: 3479158 (1969-11-01), Cook
patent: 3479170 (1969-11-01), Louden
patent: 3504426 (1970-04-01), Craig et al.
patent: 3598435 (1971-08-01), Jorgensen
patent: 3628924 (1971-12-01), Nishio et al.

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