Method of preparing a beryllia substrate for subsequent autocata

Details Method of preparing a beryllia substrate for subsequent autocata Method of preparing a beryllia substrate for subsequent autocata

1982-11-18

1984-01-31

Powell, William A.

Coating processes

With pretreatment of the base

Etching, swelling, or dissolving out part of the base

156651, 156663, 156667, 252 793, 252 795, 4274301, 4274432, B05D 304

Patent

active

044289863

ABSTRACT:
Beryllia is prepared for direct autocatalytic plating of a metal film by immersing it first in a sodium hydroxide solution for roughening the surface uniformly, rinsing it in water, then immersing it in a fluoride-based solution for etching silica and magnesium from the grain boundaries, rinsing it in water and then plating the beryllia by conventional methods for metallizing non-conductors.

REFERENCES:
patent: 3296012 (1937-01-01), Statnecker
patent: 3690921 (1972-09-01), Elmore
patent: 4135012 (1979-01-01), Su

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