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US 2013/0154469 A1Published application
Cathode body, fluorescent tube, and method of manufacturing a cathode body
AssigneeNational University Corporation Tohoku University
InventorsTadahiro Ohmi, Tetsuya Goto, Hidekazu Ishii
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Abstract
Provided is a cathode body that comprises a cylindrical cup 30 as a base member, a barrier layer 303 provided on a surface of the cylindrical cup 30 and containing SiC, and a film formed on a surface of the barrier layer 303 and containing a boride of a rare earth element and that can prevent interdiffusion of a constituent element of the base member and the boride.
Claims13
A cathode body by comprising:
- a base member;
- a barrier layer provided on a surface of the base member and containing SiC;
- and
- a film formed on a surface of the barrier layer and containing a boride of a rare earth element.
1 more element
A method of manufacturing a cathode body, comprising:
- a step (a) of forming a barrier layer containing SiC on a surface of a base member;
- and
- a step (b) of forming a film containing a boride of a rare earth element on the barrier layer.
Dependencies are inferred from the claim text.