ZrO.sub.2 -base heating elements

Details ZrO.sub.2 -base heating elements ZrO.sub.2 -base heating elements

1975-05-21

1977-03-01

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

13 25, 338332, 219540, H05B 310

Patent

active

040103528

ABSTRACT:
ZrO.sub.2 -base heating elements have been of interest for use in oxidizing atmospheres above 1600.degree. C for a great many years, i.e. since it was shown that ZrO.sub.2 could be used as a resistance heater. Many groups have used, with limited success, ZrO.sub.2 -base elements for laboratory use, but to date no company has produced an element satisfactory for production and industrial use.
I have developed a ZrO.sub.2 -base element which shows adequate usefulness to be produced in quantity and used in industry for satisfactory lifetimes relative to the other elements used at high temperatures.

REFERENCES:
patent: 2356237 (1944-08-01), Geller
patent: 2397445 (1946-03-01), Stupakoff
patent: 2417953 (1947-03-01), Stupakoff
patent: 2679545 (1954-05-01), Kistler
patent: 3086187 (1963-04-01), Duggan et al.
patent: 3155759 (1964-11-01), Marshall
patent: 3538231 (1970-11-01), Newkirk et al.

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