Method of applying continuously graded metallic-ceramic layer on

Details Method of applying continuously graded metallic-ceramic layer on Method of applying continuously graded metallic-ceramic layer on

1984-11-28

1986-05-13

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

415174, 427423, B05D 108

Patent

active

045886075

ABSTRACT:
Methods of coating metallic substrates with continuously graded metallic-ceramic material are disclosed. The method maintains low stress to strength ratios across the depth of the graded layer when the graded layer is under subsequent operative conditions. In one particular structure, the coating is applied to a metal substrate and includes a metallic bond coat a continuously graded metallic-ceramic layer and an outer layer of abradable ceramic material. Modulation of the metal substrate temperature during the coating process establishes a desired residual stress pattern in the graded layer.

REFERENCES:
patent: 3091548 (1963-05-01), Dillon
patent: 3340084 (1967-09-01), Eisenlohr
patent: 3413136 (1968-09-01), Emanuelson et al.
patent: 4248940 (1981-02-01), Goward et al.
patent: 4336276 (1982-06-01), Bill et al.
patent: 4481237 (1984-11-01), Bosshart et al.

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