A RAPID ELECTROLYTIC METHOD FOR THE PREPARATION OF METALLOGRAPHIC SURFACES ON FABRICATED BERYLLIUM

Journal Article · Thu Mar 01 04:00:00 EST 1962 · J. Inst. Metals

OSTI ID:4786258

Dingle, J H; Moore, A

A method described for the preparation of metallographic surfaces on fabricated beryllium is essentially an electrolytic process whereby a relatively strain-free surface, responding readily to polarized light, can be prepared easily and quickly on rolled or machined surfaces in either ingot or powder products. From the as-received condition, the specimen is preferably (though not necessarily) rough polished on two silicon carbide papers and electropolished on a modifted Disa Electropol apparatus for 45 min. The electrolyte is composed of 3 vol phosphoric acid, 1 vol sulfuric acid, 1 vol glycol, and 1 vol alcohol. The total time for the process is approximately 1 h and involves complete attention of the operator for only 15 min. (P.C.H.)

• Research Organization: Atomic Weapons Research Establishment, Aldermaston, Berks, Eng.
• NSA Number: NSA-16-013608
• OSTI ID: 4786258
• Journal Information: J. Inst. Metals, Journal Name: J. Inst. Metals Vol. Vol: 90
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALCOHOLS
BERYLLIUM
CLEANING
ELECTRICITY
ELECTROLYSIS
ELECTROLYTES
GLYCOLS
LABORATORY EQUIPMENT
LIGHT
MACHINING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
PAPER
PHOSPHORIC ACID
POLARIZATION
POWDERS
PREPARATION
RODS
ROLLING
SILICON CARBIDES
SOLUTIONS
SULFURIC ACID
SURFACES