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topic 5124

Electroplating of Tantalum onto alumina or magnesia


(2000)

Q. My name is Rich Boonstra and I am principal engineer for Archimedes Technology Group in San Diego. We are working on the design of an electrode for a plasma machine and were wondering if it is possible to plate tantalum on either an alumina or magnesia substrate, and what thickness could be achieved. The operating temperature of the electrode is estimated to be 1200 - 1500 C. Thank you.

Richard H. Boonstra
- San Diego, California, USA


(2000)

A. It is possible to electroplate tantalum from a fused salt bath. Thicknesses of 6 mm have been reported. See G. W. Mellors and S. Senderoff, U. S. Patent 3,444,058 (1969) and Lowenheim's Modern Electroplating, pp473ff .

James Totter
James Totter, CEF
- Tallahassee, Florida

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