Coating powder with valve-metal

Details Coating powder with valve-metal Coating powder with valve-metal

1980-07-28

1982-10-12

Morgenstern, Norman

Coating processes

Particles, flakes, or granules coated or encapsulated

Applying superposed diverse coatings or coating a coated base

427 80, 427 81, 427217, 427222, 427251, 427255, 4272552, 4272555, 4272557, 427241, 427404, 118716, 118730, B05D 700

Patent

active

043539386

ABSTRACT:
Powder is coated with valve-metal by rotating it in a drum 15 so that it is presented to valve-metal vapor derived by evaporation of a source of valve-metal. In the case of coating with aluminum, the vapor may be produced by directing aluminum wire 10 on to a heater 11, and oxygen or air is admitted to control agglomerate formation. Aluminum and tantalum coating are both described using electron beam evaporators.

REFERENCES:
patent: 2846971 (1958-08-01), Baer et al.
patent: 3248612 (1966-04-01), Rogers
patent: 3429295 (1969-02-01), Shapiro
patent: 3518500 (1970-06-01), Jimerson et al.
patent: 3611051 (1971-10-01), Puppolo
patent: 3912829 (1975-10-01), Takahashi et al.
patent: 3927228 (1975-12-01), Pulker
patent: 4050951 (1977-09-01), Piccolo et al.
patent: 4068038 (1978-01-01), Montiglio et al.
patent: 4242982 (1981-01-01), Drake et al.

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