Process for stable phase III potassium nitrate and articles prep

Details Process for stable phase III potassium nitrate and articles prep Process for stable phase III potassium nitrate and articles prep

1972-12-18

1976-02-17

Weiffenbach, Cameron K.

Coating processes

Electrical product produced

Welding electrode

427100, 427126, 427248, B05D 306

Patent

active

039392929

ABSTRACT:
A ferroelectric Phase III potassium nitrate (KNO.sub.3) which is stable at ambient temperatures is produced in accordance herewith by crystallizing reagent grade KNO.sub.3 under vacuum and heat and, then, equilibrating the resultant to ambient conditions. This stable Phase III KNO.sub.3 which is of crystalline structure exhibits visual and optical effects when subjected to mechanical and electrical alteration of the polarization vector of the crystalline structure, thus, rendering it useful in the manufacture of transparent electrodes by interposing this crystalline material between the electrodes, and the like. Furthermore, ferroelectric thin film memory arrays can be produced herefrom.

REFERENCES:
patent: 2922730 (1960-01-01), Feldman
patent: 3405440 (1968-10-01), Nolta et al.
Nolta et al., Dielectric Behavior of Films of Vacuum-Deposited Potassium Nitrate, In Chemical Abstracts, 71:106543k. 1969.

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