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US 2017/0253797 A1Published application
Ceramic emitter
AssigneeNEC Corporation
InventorAkinobu SHIBUYA
Life of this patent
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Abstract
[Objective] To provide a ceramic emitter that exhibits high radiation intensity and excellent wavelength selectivity. [Solution] A ceramic emitter includes a polycrystalline body that has a garnet structure represented by a compositional formula R3Al5O12 (R: rare-earth element) or R3Ga5O12 (R: rare-earth element) and has pores with a porosity of 20-40%. The pores have a portion where the pores are connected to one another but not linearly continuous, inside the polycrystalline body.
Claims8
A ceramic emitter comprising a polycrystalline body having a garnet structure represented by a compositional formula R3Al5O12 (R:
- rare-earth element) or R3Ga5O12 (R:
- rare-earth element), the polycrystalline body having pores with a porosity of not less than 20% and not more than 40%,
- wherein the pores includes a portion where the pores are couple to one another but not linearly continuous, inside the polycrystalline body.
Dependencies are inferred from the claim text.