Metal based resistance heating element and method for...

Details Metal based resistance heating element and method for... Metal based resistance heating element and method for...

2006-12-19

2006-12-19

Lavilla, Michael E. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S610000, C428S650000, C428S670000, C428S680000, C428S450000, C427S383300, C427S383700, C228S262500, C228S262700

Reexamination Certificate

active

07150924

ABSTRACT:
Discloses is a metal-based resistance heat-generation element. The element comprises a core made of a platinum group metal or refractory metal, and a coating film formed on the core. The coating film has at least two layers including a core-side inner layer of a Re—Cr based σ (sigma) phase and a surface-side outermost layer of an aluminide or silicide. Alternatively, the element may comprise a core made of an alloy containing a platinum group metal or refractory metal and Re and Cr diffused therein, and a coating film formed on the core. The coating film has at least one layer including an aluminide or silicide layer.

REFERENCES:
patent: 6299986 (2001-10-01), Meelu
patent: 6461746 (2002-10-01), Darolia et al.
patent: 2005/0064227 (2005-03-01), Narita et al.
patent: 5-299156 (1993-11-01), None
patent: 9-245940 (1997-09-01), None
patent: 11-228244 (1999-08-01), None
patent: WO 03/038152 (2003-05-01), None

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