Protective cladding for a molybdenum substrate

Details Protective cladding for a molybdenum substrate Protective cladding for a molybdenum substrate

1988-01-20

1990-12-11

Herbert, Thomas J.

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

374208, 428464, 428701, 501 68, 501121, B65D 100, B32B 1504

Patent

active

049770012

ABSTRACT:
A cladding for a molybdenum body such as a molybdenum tube for protecting the molybdenum from corrosive high temperature environments. The cladding contains oxides of molybdenum, aluminum, silicon and alkali metals in about the following percentages by weight of the total metal content: molybdenum 18-40 percent; aluminum 10-25 percent; silicon 25-50 percent; and, alkali metals 8-12 percent. The cladding may be formed by bringing the molybdenum body into contact in the presence of oxygen, with a refractory containing oxides of aluminum, silicon and alkali metals at a temperature greater than 400.degree. C.

REFERENCES:
patent: 3106493 (1963-10-01), Japka
patent: 3250125 (1966-10-01), Bonn
patent: 3610045 (1971-10-01), Shearman
patent: 4467134 (1984-08-01), Pustell
patent: 4662288 (1987-05-01), Hastings et al.
patent: 4721533 (1988-01-01), Phillippi et al.

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