Pyrolytic boron nitride radiation heater

Details Pyrolytic boron nitride radiation heater Pyrolytic boron nitride radiation heater

1999-07-02

2000-10-31

Walberg, Teresa

Electric heating

Heating devices

With heating unit structure

219548, 219552, H05B 310

Patent

active

061406244

ABSTRACT:
A pyrolytic boron nitride radiation heating unit including a dielectric base of boron nitride, a heating element of pyrolytic graphite superimposed on the dielectric base, a first outer coating surrounding said heating element composed of pyrolytic boron nitride and a second outer coating surrounding said first outer coating and having an emmissivity above at least about 0.9 at a wave length of 1.55 microns. The second outer coating is preferably selected from the group consisting of silicon carbide and boron carbide.

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