Stock material or miscellaneous articles – Composite – Of silicon containing
Patent
1994-07-20
1998-05-26
Speer, Timothy
Stock material or miscellaneous articles
Composite
Of silicon containing
428450, 428698, 428699, 428701, 428702, B32B 904
Patent
active
057562156
ABSTRACT:
A rectangular plate shaped rapid temperature rise heater element includes a sintered insulating ceramic layer, an exothermic section, and first and second lead layers for applying voltage across the exothermic section to develop heat. Typically the sintered insulating ceramic layer, exothermic section, and lead layers are formed of ceramic compositions composed mainly of an identical insulating component in the form of a metal oxide, typically Al.sub.2 O.sub.3 and an identical conductive component in the form of a metal silicide and/or carbide, typically MoSi.sub.2, blended in different ratios for the respective layers. The heater element is easy and inexpensive to manufacture, capable of rapid heating, and durable.
REFERENCES:
patent: 4598676 (1986-07-01), Ito et al.
patent: 4644133 (1987-02-01), Atsumi et al.
patent: 5191508 (1993-03-01), Axelson et al.
Kitajima Masahiro
Kondo Ryoichi
Miki Nobuyuki
Mitsuhashi Etsuo
Okamura Akio
Speer Timothy
TDK Corporation
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