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US 8,685,506 B2Granted
Tablet and exhaust pipe integrated with tablet
AssigneeNippon Electric Glass Co., Ltd.
InventorsNoriaki Masuda, Kentaro Ishihara, Kazuo Kinoshita, Katsuhiro Ito
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Abstract
A tablet includes a bismuth-based glass and a refractory filler, wherein the bismuth-based glass comprises, as a glass composition, in terms of mass %, 70 to 90% of Bi2O3, 2 to 12% of B2O3, 0 to 5% of Al2O3, 1 to 15% of ZnO, 0 to 10% of BaO, and 0 to 8% of CuO+Fe2O3; the tablet comprises 1 to 25 vol % of alumina as the refractory filler; and the filling ratio of the tablet is 71% or more.
Claims10
A tablet, comprising:
- bismuth-based glass;
- and
- a refractory filler, wherein
- the bismuth-based glass comprises, as a glass composition, in terms of mass %, 70 to 90% of Bi2O3, 2 to 12% of B2O3, 0 to 5% of Al2O3, 1 to 15% of ZnO, 0 to 10% of BaO, and 0 to 8% of CuO+Fe2O3,
- the tablet comprises 1 to 25 vol % of alumina as the refractory filler, a specific surface area of the alumina being 0.1 to 3 m2/g,
- the tablet has a filling ratio of 71% or more, and
- the alumina has a 10% particle diameter D10 of 0.1 to 5 μm, an average particle diameter D50 of 1 to 10 μm, and a 90% particle diameter D90 of 10 to 30 μm.
4 more elements
Dependencies are inferred from the claim text.