Feed-through assembly

摘要

A feed through assembly has a metal component passed through a ceramic insulator, and a multi-layered joint brazed to the ceramic insulator and the metal component to form the assembly. The multi-layered joint includes a first portion of braze filler material placed around the metal component and a hollow member of predetermined shape placed around the metal component. A flange is provided at a first end of the hollow member, wherein the flange rests on the first portion of braze filler material. The multi-layered joint has a second portion of braze filler material placed around the hollow member and seated onto the flange. A ceramic member of predetermined shape is placed around the hollow member which rests on the second portion of braze filler material. A third portion of braze filler material is placed around the metal component and seated onto a second end of the hollow member.

主权项

1. A feed-through assembly, comprising;
a metal component passed through a ceramic insulator; and a multi-layered joint comprising:
a hollow member of predetermined shape placed around the metal component, the hollow member comprising a flange at a first end;a first portion of braze filler material placed around the metal component between the ceramic insulator and the flange, wherein the flange rests on the first portion of braze filler material;a second portion of braze filler material placed around the hollow member and seated onto the flange;a ceramic member of predetermined shape placed around the hollow member which rests on the second portion of braze filler material; anda third portion of braze filler material placed around the metal component and seated onto a second end of the hollow member to form a multi-layered joint; wherein the multi layered joint is brazed to the ceramic insulator and the metal component to form a feed-through assembly.