Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1977-02-15
1978-02-07
Edmundson, F. C.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041291, 2041298, 204228, 204231, 204DIG7, C25F 326, C25F 700
Patent
active
040725880
ABSTRACT:
The surface of an intermetallic niobium compound or niobium alloy to be polished is electrically shunted across a niobium part and immersed in electrolyte together with the latter permitting relatively thick surface layers of niobium compounds of high quality which are used for superconducting a-c apparatus to be produced.
REFERENCES:
patent: 2044431 (1936-06-01), Harrison
patent: 3627648 (1971-12-01), Waggener
patent: 3689388 (1972-09-01), Diepers et al.
Edmundson F. C.
Siemens Aktiengesellschaft
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