NDLI: Development of electroforming process to construction of TWT helix

Content Provider	IEEE Xplore Digital Library
Author	Higashi, C. Giovedi, C. Motta, C.C.
Copyright Year	2003
Description	Author affiliation: Centro Tecnologico da Marinha em Sao Paulo, Brazil (Higashi, C.; Giovedi, C.; Motta, C.C.)
Abstract	The present paper presents results obtained in experiments of copper electrodeposition from an acid copper (II) sulfate bath in order to obtain a copper pipe to be used as a traveling-wave tube helix. Experimental parameters as density current, concentrations of components of the bath, agitation, temperature and additives, were studies and results obtained show that to ensure the efficiency of the electroforming process is fundamental the rigorous control of all these variables. The copper cathode with the characteristics required was obtained in the following condition: density current 1.2 A dm/sup -2/, room temperature, agitation, addition to the bath of 90 mg L/sup -1/ of NaCl and 0.5 g L/sup -1/ of glue (organic substance). The deposit of copper obtained in this condition was homogeneous without blanks and enough thickness.
Starting Page	1085
Ending Page	1089
File Size	316837
Page Count	5
File Format	PDF
ISBN	0780378245
DOI	10.1109/IMOC.2003.1242873
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-20
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Copper Cathodes Anodes Electrochemical processes Electrodes Microwave devices Oxidation Fabrication Additives Shape control
Content Type	Text
Resource Type	Article

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