Stock material or miscellaneous articles – Composite – Of silicon containing
Reexamination Certificate
2005-08-02
2005-08-02
Meeks, Timothy (Department: 1762)
Stock material or miscellaneous articles
Composite
Of silicon containing
C428S448000, C428S195100, C428S450000, C264S603000, C264S646000, C264S674000, C264S681000, C264S122000, C427S252000, C427S282000
Reexamination Certificate
active
06924038
ABSTRACT:
A mask suitable for protecting a portion of a substrate surface against diffusion coating of the substrate with a metal, which mask comprises a ceramic material comprising silica and an inert refractory diluent and a metal or metal alloy, wherein the metal or metal alloy is one which is reactive with silicon thereby minimising or preventing siliconisation of the substrate with silicon in the ceramic material under conditions of diffusion coating, and which is reactive with the metal being applied by diffusion coating thereby preventing diffusion coating of the portion of the substrate surface it is desired to protect.
REFERENCES:
patent: 4128522 (1978-12-01), Elam
patent: 6332926 (2001-12-01), Pfaendtner et al.
patent: 1298830 (1969-07-01), None
patent: 2008621 (1979-06-01), None
Database WPI, Section Ch, Week 198146 Derwent Publications Ltd., London, GB; AN 1981-84937D.
XP002141086 & SU 804715A (S Ranches Mech Elec), Feb. 15, 1981 abstract.
Goddard David Arthur
Hardy Bryan Anthony
Shaw Edward Hugh
Bittman Mitchell D.
Chromalloy United Kingdom Limited
Meeks Timothy
Wade Ceramics Limited
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