Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO.sub.2, 0 to 20% B.sub.2O.sub.3, 0 to 25% Al.sub.2O.sub.3, 0 to 3% Li.sub.2O, 0 to 3% Na.sub.2O, 0 to 3% K.sub.2O, 0 to 3% Li.sub.2O+Na.sub.2O+K.sub.2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 4% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphate phosphor.

Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO.sub.2, 0 to 20% B.sub.2O.sub.3, 0 to 25% Al.sub.2O.sub.3, 0 to 3% Li.sub.2O, 0 to 3% Na.sub.2O, 0 to 3% K.sub.2O, 0 to 3% Li.sub.2O+Na.sub.2O+K.sub.2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 4% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphate phosphor.

A laminate sheet article including: a core including an electrical semi-conductor or an electrical conductor; and a continuous glass clad layer on at least four of six sides the core of the sheet article. Also disclosed is an apparatus for making a sheet laminate article as defined herein. Also disclosed is a method of making and using the article.

A laminate sheet article including: a core including an electrical semi-conductor or an electrical conductor; and a continuous glass clad layer on at least four of six sides the core of the sheet article. Also disclosed is an apparatus for making a sheet laminate article as defined herein. Also disclosed is a method of making and using the article.

A glass pharmaceutical package having a glass composition of 68.00 mol % to 81.00 mol % SiO.sub.2, from 4.00 mol % to 11.00 mol % Al.sub.2O.sub.3, from 0.10 mol % to 16.00 mol % Li.sub.2O, from 0.10 mol % to 12.00 mol % Na.sub.2O, from 0.00 mol % to 5.00 mol % K.sub.2O, from 0.10 mol % to 8.00 mol % MgO, from 0.10 mol % to 5.00 mol % CaO, from 0.00 mol % to 0.20 mol % fining agent. The glass pharmaceutical package is delamination resistant, and has class 1 or class 2 chemical durability in acid, base, and water. The glass pharmaceutical package may have a surface compressive stress of at least 350 MPa.

A glass pharmaceutical package having a glass composition of 68.00 mol % to 81.00 mol % SiO.sub.2, from 4.00 mol % to 11.00 mol % Al.sub.2O.sub.3, from 0.10 mol % to 16.00 mol % Li.sub.2O, from 0.10 mol % to 12.00 mol % Na.sub.2O, from 0.00 mol % to 5.00 mol % K.sub.2O, from 0.10 mol % to 8.00 mol % MgO, from 0.10 mol % to 5.00 mol % CaO, from 0.00 mol % to 0.20 mol % fining agent. The glass pharmaceutical package is delamination resistant, and has class 1 or class 2 chemical durability in acid, base, and water. The glass pharmaceutical package may have a surface compressive stress of at least 350 MPa.

The present invention relates to a glass for chemical strengthening including, in mole percentage on an oxide basis: 45 to 75% of SiO.sub.2; 1 to 30% of Al.sub.2O.sub.3; 1 to 20% of Li.sub.2O; 0 to 5% of Y.sub.2O.sub.3; 0 to 5% of ZrO.sub.2; and 0 to 1% of TiO.sub.2, having a total content of one or more kinds of MgO, CaO, SrO, BaO and ZnO of 1 to 20%, having a total content of Na.sub.2O and K.sub.2O of 0 to 10%, having a total content of B.sub.2O.sub.3 and P.sub.2O.sub.5 of 0 to 10%, and having a value M expressed by the following expression of 1,000 or more: M=−5×[SiO.sub.2]+121×[Al.sub.2O.sub.3]+50×[Li.sub.2O]−35×[Na.sub.2O]+32×[K.sub.2O]+85×[MgO]+54×[CaO]−41×[Sr O]−4×[P.sub.2O.sub.5]+218×[Y.sub.2O.sub.3]+436×[ZrO.sub.2]−1180, in which each of [SiO.sub.2], [Al.sub.2O.sub.3], [Li.sub.2O], [Na.sub.2O], [K.sub.2O], [MgO], [CaO], [SrO], [P.sub.2O.sub.5], [Y.sub.2O.sub.3], and [ZrO.sub.2] designates a content of each component in mole percentage on an oxide basis.

The present invention relates to a glass for chemical strengthening including, in mole percentage on an oxide basis: 45 to 75% of SiO.sub.2; 1 to 30% of Al.sub.2O.sub.3; 1 to 20% of Li.sub.2O; 0 to 5% of Y.sub.2O.sub.3; 0 to 5% of ZrO.sub.2; and 0 to 1% of TiO.sub.2, having a total content of one or more kinds of MgO, CaO, SrO, BaO and ZnO of 1 to 20%, having a total content of Na.sub.2O and K.sub.2O of 0 to 10%, having a total content of B.sub.2O.sub.3 and P.sub.2O.sub.5 of 0 to 10%, and having a value M expressed by the following expression of 1,000 or more: M=−5×[SiO.sub.2]+121×[Al.sub.2O.sub.3]+50×[Li.sub.2O]−35×[Na.sub.2O]+32×[K.sub.2O]+85×[MgO]+54×[CaO]−41×[Sr O]−4×[P.sub.2O.sub.5]+218×[Y.sub.2O.sub.3]+436×[ZrO.sub.2]−1180, in which each of [SiO.sub.2], [Al.sub.2O.sub.3], [Li.sub.2O], [Na.sub.2O], [K.sub.2O], [MgO], [CaO], [SrO], [P.sub.2O.sub.5], [Y.sub.2O.sub.3], and [ZrO.sub.2] designates a content of each component in mole percentage on an oxide basis.

Coated glass or glass ceramic substrates having high temperature resistance, high strength, and a low coefficient of thermal expansion. The coating includes pores, is fluid-tight and suitable for coating a temperature-resistant, high-strength glass or glass ceramic substrate with a low coefficient of thermal expansion, and to a method for producing such a coated substrate.

Coated glass or glass ceramic substrates having high temperature resistance, high strength, and a low coefficient of thermal expansion. The coating includes pores, is fluid-tight and suitable for coating a temperature-resistant, high-strength glass or glass ceramic substrate with a low coefficient of thermal expansion, and to a method for producing such a coated substrate.