Glass to metal interface X-ray tube

Details Glass to metal interface X-ray tube Glass to metal interface X-ray tube

1995-10-31

1998-08-18

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 44, 378142, 65 42, H01J 926, H01J 934

Patent

active

057952078

ABSTRACT:
A method is used for interfacing dissimilar materials in an X-ray tube. The X-ray tube includes a rotor assembly to distribute heat generated in the X-ray tube. The X-ray tube is sealed within a glass material which has a first expansion coefficient. An interface is provided between the rotor assembly and the glass material to absorb temperature coefficient stresses. Preferably, the glass material is Borosilicate and the interface comprises a metal material and a ceramic material. The ceramic material has a second expansion coefficient that closely matches the first expansion coefficient. The metal material is preferably Kovar, and the ceramic material is preferably Mullite. Temperature coefficient stresses are then absorbed within the ceramic and metal structure.

REFERENCES:
patent: 3510925 (1970-05-01), Fleck
patent: 4995065 (1991-02-01), Janovin et al.
patent: 5384819 (1995-01-01), Ono
patent: 5541975 (1996-07-01), Anderson et al.

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