Method for making ceramic heater having reduced internal stress

Details Method for making ceramic heater having reduced internal stress Method for making ceramic heater having reduced internal stress

1997-06-25

1999-11-30

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Using sonic, supersonic, or ultrasonic energy

264445, 264651, 264 86, 264642, C04B 35622

Patent

active

059937220

ABSTRACT:
A ceramic heater device for use in a glow plug for a diesel engine has a gradually varying cross-sectional composition which eliminates distinct interfacial junctions between a resistive layer, an insulative layer and a highly conductive layer. The heater is manufactured by slip casting where the proportions of conductive and non-conductive ceramic particles in a slip are varied as the slip is passed through an absorbent mold.

REFERENCES:
patent: 4364783 (1982-12-01), Theodore
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patent: 4798694 (1989-01-01), Sugata et al.
patent: 5304778 (1994-04-01), Dasgupta et al.
patent: 5519187 (1996-05-01), Hinkle
Patent Abstracts of Japan--vol. 016, No. 363 (M-1290), Aug. 5, 1992 & JP 04 113121 A (Mitsui Eng.& Shipbuild Co Ltd), Apr. 14, 1992.

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