Accession Number:

AD0744430

Title:

Electrolytic Polishing and Etching Techniques for Preparing Specimens of Bismuth and Antimony and Their Alloys: Materials and Structures.

Descriptive Note:

Technical rept.,

Corporate Author:

LOCKHEED MISSILES AND SPACE CO SUNNYVALE CALIF

Personal Author(s):

• Coons,William C.

Report Date:

1962-12-01

Pagination or Media Count:

24.0

Abstract:

Electrolytic polishing and etching techniques for revealing microstructural details of bismuth and antimony and their alloys have been evolved. Electrolytic polishing was performed in a solution of methyl alcohol, sulphuric acid, hydrocloric acid and ethylene glycol. Etching was done electrolytically in a 5 percent chromic acid solution. Use of these techniques has permitted detailed studies of the microstructures of bismuth-antimony single crystals produced by various crystal growing procedures, i.e., pulling, Bridgeman-Stockbarger, and zone leveling. Author

Descriptors:

• (*ELECTROLYTIC POLISHING
• SINGLE CRYSTALS)
• (*BISMUTH ALLOYS
• MICROSTRUCTURE)
• (*ANTIMONY ALLOYS
• MICROSTRUCTURE)
• ETCHING
• METALLOGRAPHY
• SURFACE PROPERTIES

Subject Categories:

• Properties of Metals and Alloys
• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE