Chemistry: electrical and wave energy – Processes and products
Patent
1979-11-02
1980-12-23
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
204 37R, 204290F, 324 54, G01R 3112
Patent
active
042408784
ABSTRACT:
A method of platinizing and heat treating tantalum metal is described. The platinizing of tantalum is accomplished by placing a piece of conductive corrosion resistant metal and a tantalum workpiece as electrodes in a platinizing solution. The electrodes are connected to a source of DC power supply and when the current is passed, platinum black is deposited on the tantalum workpiece. The platinized tantalum workpiece is then placed in a furnace maintained at a temperature of about 1050.degree. to 1150.degree. C. for a time sufficient to diffuse the coated platinum into the surface of the tantalum core. The method of using the electrode for the detection of faults in a glass lined apparatus is also disclosed.
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Beckman Instruments Inc., Instruction Manual for Conductivity Bridge RC-16C, Part No. 015-10748184, 6/1976, Ceder Grove, N.J. 07009, p. 9.
Leader William
Marjama Owen D.
Roessel Theodore B.
Sybron Corporation
Williams Howard S.
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