Method of fabricating a titanium dioxide rectifier
AssigneeFord Motor Company
InventorsAllen H. Meitzler, William T. Donlon, Jr., Samuel S. Shinozaki
Life of this patent
Estimating the term…
Abstract
This specification discloses a method of fabricating a titanium rectifier circuit element. A titanium dioxide main body is formed with a pair of spaced faces each of which having thereon a platinum electrode. A dc voltage is applied across this structure, heating the structure to a temperature of about 750.degree.-850.degree. C. In this temperature range, the titanium dioxide body is subjected to a cyclic sequence of exposures to oxidizing and reducing atmospheres. The final step includes cooling down the titanium dioxide body in the presence of a reducing atmosphere with an applied dc electric field.
Claims4
A method for making a rectifier circuit element comprising the steps of:
- forming a structure with a porous, fine-grain, polycrystalline ceramic oxid main body with a pair of spaced faces and a platinum contact electrode on each of the spaced faces;
- applying a dc voltage across the structure;
- heating the structure to a temperature of about 750.degree. to 850 .degree. C.;
- applying an oxidizing atmosphere;
- applying a reducing atmosphere;
- cycling between oxidizing and reducing atmospheres to form planar microstructures;
- and
- cooling the structure.
Dependencies are inferred from the claim text.