Method for inducing a passive surface on beryllium

Details Method for inducing a passive surface on beryllium Method for inducing a passive surface on beryllium

1980-11-25

1982-05-04

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

427 57, C23F 726

Patent

active

043280471

ABSTRACT:
The chemical process developed herein takes place in an aqueous solution containing a substance that acts as an electron acceptor (CrO.sub.3) and a reagent (NaF) that behaves as a specific ligand for beryllium oxide. The combined effects of these two substances, coupled with non-turbulent flow conditions, produce a highly corrosion-resistant surface.

REFERENCES:
patent: 2898240 (1959-08-01), Owen
patent: 3084020 (1963-04-01), Loosli
patent: 3301718 (1967-01-01), Movana
patent: 3404044 (1968-10-01), Russell
patent: 3485682 (1969-12-01), Pearlstein et al.
patent: 3827919 (1974-08-01), Keating

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