Hermetic Electrical Feedthrough Comprising a Pt-Ni-based Pin Alloy

A combination of materials and processing parameters have been developed for hermetic seals for electrical feedthroughs in high performance applications. A glass-ceramic forms a hermetic seal between a stainless steel shell and a platinum-nickel-based (Pt-Ni) pin alloy for electrical feedthroughs. T...

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Bibliographic Details
Main Authors Susan, Donald F, Dai, Steve Xunhu, Bowen, Patrick K, Ghanbari, Zahra, Smith, III, Edward F, Elisberg, Brenton
Format Patent
LanguageEnglish
Published 21.10.2021
Subjects
ALLOYS
BASIC ELECTRIC ELEMENTS
CABLES
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
CONDUCTORS
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
GLASS
INSULATORS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:A combination of materials and processing parameters have been developed for hermetic seals for electrical feedthroughs in high performance applications. A glass-ceramic forms a hermetic seal between a stainless steel shell and a platinum-nickel-based (Pt-Ni) pin alloy for electrical feedthroughs. The glass-ceramic is processed to develop a coefficient of thermal expansion (CTE) slightly higher than the pin alloy but lower than the stainless steel. The seal system employing the new processing conditions and Pt-Ni-based pin alloy alleviates several problems encountered in previous seal systems and improves the hermetic connector performance.
Bibliography:Application Number: US202117227965