Cordierite sintered body and method for producing same
AssigneesAGC Inc., Agc Ceramics Co., Ltd.
InventorsShuhei OGAWA, Naomichi MIYAKAWA, Takuya UMEZOME, Saori INOUE
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Abstract
Provided is a cordierite sintered body including at least calcium, magnesium, aluminum, and silicon among elements belonging to an element group M1 consisting of calcium, magnesium, aluminum, yttrium, and silicon, in which a content of silicon is 44.0 mass % or more and 53.0 mass % or less in terms of oxides, a content of calcium is 2.0 mass % or less in terms of oxides, a content of yttrium is 7.0 mass % or less in terms of oxides, a content of an element M2 including a metal element other than the elements belonging to the element group M1 is 2.5 mass % or less in terms of oxides, and a dielectric loss tangent at 20 GHz is 0.00100 or less.
Claims15
A cordierite sintered body comprising at least calcium, magnesium, aluminum, and silicon among elements belonging to an element group M1 consisting of calcium, magnesium, aluminum, yttrium, and silicon, wherein
- a content of silicon is 44.0 mass % or more and 53.0 mass % or less in terms of oxides,
- a content of calcium is 2.0 mass % or less in terms of oxides,
- a content of yttrium is 7.0 mass % or less in terms of oxides,
- a content of an element M2 including a metal element other than the elements belonging to the element group M1 is 2.5 mass % or less in terms of oxides, and
- a dielectric loss tangent at 20 GHz is 0.00100 or less.
Dependencies are inferred from the claim text.