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US 7,187,128 B2Granted
Joined bodies, luminous containers and assemblies for high pressure discharge lamps
AssigneeNGK Insulators, Ltd.
InventorNorikazu Niimi
Life of this patent
Estimating the term…
Abstract
A joined body is provided, including a first member having a first joining face and sapphire exposed at the first joining face and a second member having a second joining face and sapphire or polycrystalline alumina exposed at the second joining face. The first member and second member are joined by providing a raw material for the joining material between the first and second members and heat treating the raw material at a temperature of 1730° C. or lower.
Claims6
A joined body comprising:
- a first member comprising a first joining face and having sapphire exposed at said first joining face;
- a second member comprising a second joining face and having one of sapphire and polycrystalline alumina exposed at said second joining face;
- and
- a joining material joining said first and second members;
- wherein said joining material comprises an oxynitride containing a rare earth element, aluminum and silicon, and wherein said oxynitride has a silicon content in a range of at least 3 mole percent to 10 mole percent calculated as silicon dioxide.
2 more elements
Dependencies are inferred from the claim text.