Thermal testing of ceramic components using a thermal gradient

Details Thermal testing of ceramic components using a thermal gradient Thermal testing of ceramic components using a thermal gradient

1994-08-08

1996-10-22

Gutierrez, Diego F. F.

Thermal measuring and testing

Thermal testing of a nonthermal quantity

Of susceptibility to thermally induced deteriouration, flaw,...

374 15, G01N 360, G01N 2500

Patent

active

055670512

ABSTRACT:
Non-destructive evaluation of a ceramic nozzle is accomplished by generating a thermal gradient across the nozzle while it is mounted in a test rig. The thermal gradient is then measured and compared to a preselected gradient that is representative of the harshest condition to which the nozzle will be exposed during its operating life. The thermal gradient is adjusted until it approximates the preselected gradient. The nozzle is then observed for any cracks which reveal a weakness in the ceramic.

REFERENCES:
patent: 2301316 (1942-11-01), Orr et al.
patent: 3534597 (1970-10-01), Webb
patent: 4559824 (1985-12-01), Soma et al.
patent: 4592662 (1986-06-01), Robbins et al.

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