Platinum coating dense refractories

Details Platinum coating dense refractories Platinum coating dense refractories

1978-01-19

1979-06-26

Smith, Ronald H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

156 89, 156279, 156325, 427383B, 427404, 427419R, 427419A, B05D 100, B05D 302

Patent

active

041593537

ABSTRACT:
The forming of an adherent platinum coating on the surface of hard, highly dense refractories by plasma flame spraying thereon an intermediate layer of a refractory oxide selected from the group comprised of zirconia, zircon, alumina, cordierite, mullite, or zirconia-alumina-silica having a particle size between 140 and 200 mesh, and further plasma sraying thereon a substantially 20-100 micron size platinum powder which is densified by heating to temperatures of 1350.degree.-1600.degree. C.

REFERENCES:
patent: 2777254 (1957-01-01), Siefert et al.
patent: 3066042 (1962-11-01), Ogden
patent: 3269856 (1966-08-01), Jones
patent: 3410716 (1968-11-01), Hiltz
patent: 3436203 (1969-04-01), Wu
patent: 3475143 (1969-10-01), O'Connor et al.
patent: 3598635 (1971-08-01), Sagona
patent: 3627561 (1971-12-01), Richards
patent: 4024617 (1977-05-01), McCormick
patent: 4055451 (1977-10-01), Cockbain et al.

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