Glass composition for poling and glass functional product containing the same
AssigneeNippon Sheet Glass Co., Ltd.
InventorsKoichi Sakaguchi, Shigeki Nakagaki
Life of this patent
Estimating the term…
Abstract
The present invention provides a glass composition suitable for producing a poling effect. This glass composition includes 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of Al2O3, and 0 to 15 mol % of B2O3, and a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0. As the univalent metal ions are suitable Li, Na, K, Cs, Ag, Cu, and Au.
Claims8
A glass functional product, obtained by poling a glass composition comprising 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of Al2O3, and 0 to 15 mol % of B2O3, wherein a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0 and the univalent metal ions are selected from a group consisting of Li, Na, K, Cs, and Au.
A glass frictional product, comprising a glass composition comprising 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of Al2O3, and 0 to 15 mol % of B2O3, wherein a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0 and the univalent metal ions are selected from a group consisting of Li, Na, K, Cs, and Au, and having a frozen-in electric field in a part of the glass composition.
A glass composition for poling, comprising 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 67 to 75 mol % of SiO2, 9 to 25 mol % of Al2O3, and 0 to 15 mol % of B2O3, wherein a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0 and the univalent metal ions are selected from a group consisting of Cs and Au.
A glass functional product, obtained by poling a glass composition comprising 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 9 to 25 mol % of Al2O3, and 0 to 15 mol % of B2O3, wherein a ratio of the number of moles of Al2O3, to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0.
A glass functional product, comprising a glass composition comprising 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 9 to 25 mol % of Al2O3, and 0 to 15 mol % of B2O3, wherein a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0, and having a frozen-in electric field in a part of the glass composition.
A glass composition for poling, comprising 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 67 to 70 mol % of SiO2, 9 to 25 mol % of Al2O3, and 0 to 15 mol % of B2O3, wherein a ratio of the number of moles of Al2O3 to a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0 and the univalent metal ions are selected from a group consisting of Li, Na, K. Cs, and Au.
Dependencies are inferred from the claim text.