Joined bodies, high-pressure discharge lamps and a method...

Details Joined bodies, high-pressure discharge lamps and a method... Joined bodies, high-pressure discharge lamps and a method...

2005-01-18

2005-01-18

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

C313S573000

Reexamination Certificate

active

06844677

ABSTRACT:
A joined body is provided, including a joining portion interposed between a first member wade of a metal and a second member, made of a ceramic or a cermet that joins the first and second members. The joining portion includes a main phase contacting the first member and an intermediate glass layer between the second member and the main phase. The main phase is composed of a porous bone structure having open pores and is made of a sintered product of metal powder. A glass phase is impregnated into the open pores in the porous bone structure. Preferably, the glasses of the intermediate glass layer and the impregnated glass phase have substantially the same composition.

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