Method for fabricating a seal between a ceramic and a metal allo

Details Method for fabricating a seal between a ceramic and a metal allo Method for fabricating a seal between a ceramic and a metal allo

1981-07-24

1983-08-16

Kimlin, Edward C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156311, 156322, 228232, 228903, C03B 2900, C04B 3334, B23K 3102

Patent

active

043989802

ABSTRACT:
A method of fabricating a seal between a ceramic and an alloy comprising the steps of prefiring the alloy in an atmosphere with a very low partial pressure of oxygen, firing the assembled alloy and ceramic in air, and gradually cooling the fired assembly to avoid the formation of thermal stress in the ceramic. The method forms a bond between the alloy and the ceramic capable of withstanding the environment of a pressurized water reactor and suitable for use in an electrical conductivity sensitive liquid level transducer.

REFERENCES:
patent: 3363306 (1968-01-01), Kirkpatrick
patent: 3577629 (1971-05-01), Watts et al.
patent: 3882596 (1975-05-01), Kendziora

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