Process for preparation of insulating coatings upon steel

Details Process for preparation of insulating coatings upon steel Process for preparation of insulating coatings upon steel

1982-01-20

1983-10-18

Beck, Shrive P.

Stock material or miscellaneous articles

Composite

Of quartz or glass

427193, 427202, 427203, 427204, 427330, 4273765, 4274193, 4274194, 428428, 428433, 428471, 428472, B32B 900

Patent

active

044105983

ABSTRACT:
Steel products may be coated with an insulating composition by a process which involves coating a uniform layer of finely ground glass powder on the steel and burning it at temperatures ranging from 700.degree.-1000.degree. C. Following, a paste comprising a mixture of the afore-mentioned glass, aluminum oxide and an evaporable liquid are deposited upon the burned coating, dried and burned again at 700.degree.-1000.degree. C.
The resultant coatings adhere well to steel and resist temperatures as high as 860.degree. C., so suggesting then use for coating steel destined as a substitute for ceramic supports in electronic and hybrid microelectronic applications.

REFERENCES:
patent: 3906124 (1975-09-01), Carini
patent: 4110487 (1978-08-01), Rion
patent: 4256796 (1981-03-01), Hang et al.

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