ELECTROLYTIC PRODUCTION OF INDIUM-THALLIUM SUPERCONDUCTING ALLOY COATINGS
Abstract
A study was made to electrolytically produce a dense thin coating of In-Tl alloy on a Cu base with a Tl content of 10 to 20 wt-%. An alloy containing 15 wt-% Tl was obtained from a sulfamic acid bath containing 50 g sulfamic acid, 10 g In, and 0.5 g Th 2504/l. Quality deposits were obtained when the ratio of the In-Tl concentration in the electrolyte is 5-40; this corresponds to a Tl content in the alloy of 30 to 10 wt-%. The optimal temperature of the process is 50 degrees; increasing the temperature, decreases the Tl content of the alloy. The compact coatings obtained (8 to 40% Tl) showed stable superconducting properties at low temperatures, and anticorrosion properties in a highhumidity atmosphere and at elevated temperatures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 13, 1961
- Accession Number
- AD0267740
Entities
People
- I.i. Lavrov
- S.i. Sklyarenko
Organizations
- National Air and Space Intelligence Center