Glass-based articles that include a hydrogen-containing layer extending from the surface of the article to a depth of layer. The hydrogen-containing layer includes a hydrogen concentration that decreases from a maximum hydrogen concentration to the depth of layer. The glass-based articles exhibit a high Vickers indentation cracking threshold. Glass compositions that are selected to promote the formation of the hydrogen-containing layer and methods of forming the glass-based article are also provided.

Glass-based articles that include a hydrogen-containing layer extending from the surface of the article to a depth of layer. The hydrogen-containing layer includes a hydrogen concentration that decreases from a maximum hydrogen concentration to the depth of layer. The glass-based articles exhibit a high Vickers indentation cracking threshold. Glass compositions that are selected to promote the formation of the hydrogen-containing layer and methods of forming the glass-based article are also provided.

Architectural structures including an inorganic material carrier including cement and particles or fibers of a glass including a plurality of Cu.sup.1+ ions. In aspects, the glass may have a glass phase and a cuprite phase. In aspects, the glasses may include a plurality of Cu.sup.1+ ions, a degradable phase including B.sub.2O.sub.3, P.sub.2O.sub.5 and K.sub.2O and a durable phase including SiO.sub.2. In other aspects, the glass can have a plurality of Cu.sup.1+ ions disposed on the surface of the glass and in the glass network and/or the glass matrix. The glasses and articles disclosed herein can exhibit a 2 log reduction or greater in a concentration of at least one of Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa bacteria, Methicillin Resistant Staphylococcus aureus, and E. coli, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing condition and under Modified JIS Z 2801 for Bacteria testing conditions.

Architectural structures including an inorganic material carrier including cement and particles or fibers of a glass including a plurality of Cu.sup.1+ ions. In aspects, the glass may have a glass phase and a cuprite phase. In aspects, the glasses may include a plurality of Cu.sup.1+ ions, a degradable phase including B.sub.2O.sub.3, P.sub.2O.sub.5 and K.sub.2O and a durable phase including SiO.sub.2. In other aspects, the glass can have a plurality of Cu.sup.1+ ions disposed on the surface of the glass and in the glass network and/or the glass matrix. The glasses and articles disclosed herein can exhibit a 2 log reduction or greater in a concentration of at least one of Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa bacteria, Methicillin Resistant Staphylococcus aureus, and E. coli, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing condition and under Modified JIS Z 2801 for Bacteria testing conditions.

A provided glass composition includes, in mass %: 50≤SiO.sub.2≤65; 20≤B.sub.2O.sub.3≤30; and 5≤Al.sub.2O.sub.3≤20, and further includes: at least one selected from the group consisting of MgO and CaO; and at least one selected from the group consisting of Li.sub.2O, Na.sub.2O, and K.sub.2O. In the glass composition, 0.1≤(MgO+CaO)<5, 0≤(Li.sub.2O+Na.sub.2O+K.sub.2O)≤4, and 0.50<MgO/(MgO+CaO)≤1.00 are satisfied. The glass composition is suitable for manufacturing a glass filler that has a low permittivity and that can exhibit an excellent water resistance.

A product having a transparent volume-coloured glass-ceramic is provided. The glass-ceramic includes, based on oxide, 58-72% by weight SiO.sub.2, 16-26% by weight Al.sub.2O.sub.3, 1.0-5.5% by weight Li.sub.2O, 2.0-<4.0% by weight TiO.sub.2, 0-<2.0 by weight ZnO, and 0.005-0.12% by weight MoO.sub.3, and where the glass-ceramic, based on a thickness of 4 mm, has a luminous transmittance τ.sub.vis of 0.5%-3.5%, and where the glass-ceramic has the property that after passage through the glass-ceramic, based on a thickness of 4 mm, light of the standard illuminant D65 has a colour locus in the white region A1 that in the CIExyY-2° chromaticity diagram is defined by the following coordinates:

TABLE-US-00001 A1 0.3 0.27 0.28 0.315 0.35 0.38 0.342 0.31 0.3 0.27.

Provided in the present invention is a rare earth-doped reinforced glass-ceramic, and a preparation method and a use therefor. Raw materials rare earth-doped reinforced glass-ceramic comprise at least one of the following rare earth oxides: Ta.sub.2O.sub.5, La.sub.2O.sub.3, Y.sub.2O.sub.3, Tm.sub.2O.sub.3, or Nb.sub.2O.sub.5. In the present invention, a glass article doped with at least one rare earth oxide from among Ta.sub.2O.sub.5, La.sub.2O.sub.3, Y.sub.2O.sub.3, Tm.sub.2O.sub.3, or Nb.sub.2O.sub.5 is subjected to thermal treatment and ion exchange to produce the rare-earth doped reinforced glass-ceramic. In the rare earth-doped reinforced glass-ceramic, due to the high field strength and high accumulation effects of the rear earth element, the crystal size of the glass-ceramic is caused to low, and the crystal ratio thereof to be high, thus being able to effectively improve the mechanical performance and visible light transmittance of the glass-ceramic, and effectively controlling uniform devitrification of the glass. The invention is suitable for use in cover panels of electronic devices.

Provided in the present invention is a rare earth-doped reinforced glass-ceramic, and a preparation method and a use therefor. Raw materials rare earth-doped reinforced glass-ceramic comprise at least one of the following rare earth oxides: Ta.sub.2O.sub.5, La.sub.2O.sub.3, Y.sub.2O.sub.3, Tm.sub.2O.sub.3, or Nb.sub.2O.sub.5. In the present invention, a glass article doped with at least one rare earth oxide from among Ta.sub.2O.sub.5, La.sub.2O.sub.3, Y.sub.2O.sub.3, Tm.sub.2O.sub.3, or Nb.sub.2O.sub.5 is subjected to thermal treatment and ion exchange to produce the rare-earth doped reinforced glass-ceramic. In the rare earth-doped reinforced glass-ceramic, due to the high field strength and high accumulation effects of the rear earth element, the crystal size of the glass-ceramic is caused to low, and the crystal ratio thereof to be high, thus being able to effectively improve the mechanical performance and visible light transmittance of the glass-ceramic, and effectively controlling uniform devitrification of the glass. The invention is suitable for use in cover panels of electronic devices.

The present invention relates to a glass including, in terms of mole percentage based on oxides: SiO.sub.2 in an amount of 45% to 65%; Al.sub.2O.sub.3 in an amount of 18% to 30%; Li.sub.2O in an amount of 7% to 15%; one or more selected from Y.sub.2O.sub.3 and La.sub.2O.sub.3 in a total amount of 0% to 10%; P.sub.2O.sub.5 in an amount of 0% to 10%; B.sub.2O.sub.3 in an amount of 0% to 10%; and ZrO.sub.2 in an amount of 0% to 4%, and satisfying the following expression: [Al.sub.2O.sub.3]—[R.sub.2O]—[RO]—[P.sub.2O.sub.5]>0, provided that, in terms of mole percentage based on oxides, a content of Al.sub.2O.sub.3 is defined as [Al.sub.2O.sub.3], a content of P.sub.2O.sub.5 is defined as [P.sub.2O.sub.5], a total content of alkali metal oxides is defined as [R.sub.2O], and a total content of alkali earth metal oxides is defined as [RO].

The present invention relates to a glass including, in terms of mole percentage based on oxides: SiO.sub.2 in an amount of 45% to 65%; Al.sub.2O.sub.3 in an amount of 18% to 30%; Li.sub.2O in an amount of 7% to 15%; one or more selected from Y.sub.2O.sub.3 and La.sub.2O.sub.3 in a total amount of 0% to 10%; P.sub.2O.sub.5 in an amount of 0% to 10%; B.sub.2O.sub.3 in an amount of 0% to 10%; and ZrO.sub.2 in an amount of 0% to 4%, and satisfying the following expression: [Al.sub.2O.sub.3]—[R.sub.2O]—[RO]—[P.sub.2O.sub.5]>0, provided that, in terms of mole percentage based on oxides, a content of Al.sub.2O.sub.3 is defined as [Al.sub.2O.sub.3], a content of P.sub.2O.sub.5 is defined as [P.sub.2O.sub.5], a total content of alkali metal oxides is defined as [R.sub.2O], and a total content of alkali earth metal oxides is defined as [RO].