Detection of broken coated fuel particles in ceramic coating lay

Details Detection of broken coated fuel particles in ceramic coating lay Detection of broken coated fuel particles in ceramic coating lay

1990-12-05

1991-10-29

Cuchlinski, Jr., William A.

Thermal measuring and testing

Leak or flaw detection

With heating or cooling of specimen for test

73150R, 374 57, 376251, G01N 2572, G21C 1706

Patent

active

050621190

ABSTRACT:
A method of detecting coated fuel particles having a broken ceramic coated layer in coated fuel particles for high-temperature gas-cooled reactor which comprises permeating a liquid into the interior of the coated fuel particles having a broken ceramic coated layer through a broken portion of the ceramic coated layer, thereafter heating it to expand the liquid by evaporation pyrolysis thereby breaking the ceramic coating layer or the whole body of coated fuel particle by pressure generated.

REFERENCES:
patent: 2851338 (1958-09-01), Johns et al.
patent: 3830094 (1974-08-01), Leger
patent: 4591478 (1986-05-01), Cohen et al.

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