Method of anchoring metallic coated leads to ceramic bodies and

Details Method of anchoring metallic coated leads to ceramic bodies and Method of anchoring metallic coated leads to ceramic bodies and

1975-08-15

1976-07-20

Smith, Al Lawrence

Metal fusion bonding

Process

Metal to nonmetal with separate metallic filler

228254, 339102R, B23K 104

Patent

active

039702359

ABSTRACT:
Mechanical retension of a lead having a core material with a ductile metal plating of lower melting temperature is provided within a receiving opening of a fired ceramic body by heating the lead within the opening of the ceramic body to a temperature between the melting temperature of the plating on the lead and the melting temperature of the core material of the lead. A charge of molten plating material is formed and cast thereby, substantially by capillary action, within an interstitial opening at the lead-ceramic interface substantially conterminous to surfaces of interior surface irregularities within the opening. Upon cooling, an integral lead-ceramic body is formed wherein the lead is anchored within its receiving opening substantially by the casting of the plating material within the surface irregularities.

REFERENCES:
patent: 2074086 (1937-03-01), Graeper
patent: 3004185 (1961-10-01), Rose
patent: 3062981 (1962-11-01), Stoeckert et al.
patent: 3188720 (1965-06-01), Husni

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