Abstract: A sealing material paste and a process for producing an electronic device are provided, which realize suppressing with good reproducibility generation of bubbles in a sealing layer when a rapid heating-rapid cooling process with a temperature-rising speed of at least 100° C./min is applied to seal two glass substrates together. The sealing material paste, wherein the amount of water is at most 2 volume %, is applied on a sealing region of a glass substrate 2, and such a coating film 8 is fired to form a sealing material layer 7. The glass substrate 2 is laminated with another glass substrate via a sealing material layer 7, and they are heated with a temperature-rising speed of at least 100° C./min to be sealed together.

Abstract: A lithium-ion conductive glass-ceramic article has a crystalline component characterized by the formula MA2(XO4)3, where M represents one or more monovalent or divalent cations selected from Li, Na and Zn, A represents one or more trivalent, tetravalent or pentavalent cations selected from Al, Cr, Fe, Ga, Si, Ti, Ge, V and Nb, and X represents P cations which may be partially substituted by B cations.

Abstract: An optical glass includes, in weight percent: 15% to 36% of SiO2; 13% to 31% of B2O3; 4% to 27% of Al2O3; 0% to 19% of Ta2O5; 0% to 10% of ZrO2; and 0% to 10% of Nb2O5; wherein Ta2O5+Nb2O5+ZrO2?7.1%; and has optical constants including a refractive index nd between 1.54 and less than 1.61 and an Abbe number vd in the range of 50 to 57; and wherein ?Pgy that denotes the anomalous dispersion is ?0.004 or less.

Abstract: The invention provides an optical glass for press molding which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having an excellent visible light transmittance; and (5) it has excellent resistance to devitrification during preparation of a preform. The optical glass for press molding has a refractive index nd of 1.925 or more, an Abbe's number ?d of 10 to 30, and a glass composition, in % by mass, of 20 to 80% Bi2O3, 10 to 30% B2O3, and 0 to 5.5% GeO2 and is substantially free of lead component, arsenic component, and F component.

Abstract: The present invention relates to a low-V2O5-content and even V2O5-free porcelain enamel with improved dish-washer resistance, very good acid resistance and good adherence on various substrates. The invention moreover relates to a transparent low-V2O5-content and even V2O5-free porcelain enamel frit for application of enamel coatings with infinite color range on a substrate made of aluminum, cast aluminum, aluminum alloy, aluminum-magnesium alloy, cast aluminum alloy, copper, austenitic stainless steel and mild steel, presenting improved dish-washer resistance, good acid resistance and good adherence on the substrate. The composition of the porcelain enamel in question comprises about 30 wt-% to about 50 wt-% SiO2, about 30 wt-% to about 40 wt-% R2O, about 15 wt-% to about 25 wt-% TiO2, about 0 wt-% to about 5 wt-% RO, about 0 wt-% to about 4 wt-% V2O5, about 0.

Abstract: The invention includes a composition for sealing agent, generally in the form of glass frit, lead-free, comprising by weight over the total weight of the composition: 30-80% Bi2O3; 2-10% ZnO; 2-10% B2O3; 0-5% Na2O; 1-10% SiO2; 1-8% Al2O3; 0-7% BaO; and 0-8% MgO. The composition for sealing agent as defined above can be added with a filler in a quantity up to 20% by weight over the total weight of the resulting mixture. The invention also includes a sealing paste containing the composition for sealing agent, the optional filler, an organic binder and optionally an organic solvent. The invention also includes methods for producing and using the composition for sealing agent and the sealing paste, as well as an electronic device sealed with the sealing paste.

Abstract: An aspect of the present invention relates to optical glass, which is oxide glass comprising various cationic components in prescribed amounts without Pb, with a refractive index nd of 1.750 to 1.850, an Abbé number ?d of 29.0 to 40.0, and a glass transition temperature of less than 630° C.

Abstract: The invention including phosphate optical glass with refractivity ranging from 1.93 to 1.95 and the Abbe number ranging from 16 to 19, with a low liquidus temperature. The phosphate optical glass, including: 5 to 25 wt % of NaPO3, 1 to 20 wt % of KPO3, 2 to 15 wt % of P2O5, 0 to 5 wt % of BaO, 0 to 10 wt % of Ba(PO3)2, more than 0 but less than 2 wt % of B2O3, 5 to 25 wt % of TiO2, 35 to 55 wt % of Nb2O5, and 0 to 5 wt % of SiO2. Refractivity of phosphate optical glass can reach 1.93 to 1.95, the Abbe number can reach 16 to 19, the liquidus temperature is below 1,120° C., the processing property during melting is good, the glass surface is unlikely to be devitrified during the processing of the glass, and can be formed easily.

Abstract: Provided is an optical glass which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having a superior visible light transmittance; and (5) it has superior resistance to devitrification during preparation of a preform. The optical glass has a refractive index nd of 2.0 or more, an Abbe's number ?d of 20 or less, a glass transition point of 450° C. or below, and a glass composition, in % by mass, of 70 to 90% Bi2O2, 4 to 29.9% B2O2, 0.1 to 10% Li2O+Na2O+K2O, and 0 to 2.5% SiO2+Al2O2 and is substantially free of lead component, arsenic component, F component, TeO2, and GeO2.

Abstract: The disclosure is directed to glass frits materials containing phosphors that can be used in LED lighting devices and for methods associated therewith for making the phosphor containing frit materials. Suitable non-lead glasses have a composition, in mol %, in the range of 20-24% K2O, 8-12% ZnO, 2-6% Al2O3, 35-41% B2O3 and 22-28 SiO2. Suitable leaded glasses have a composition, in wt %, in range of 72-79% PbO, 8-13% Al2O3, 8-13% B2O3, 2-5% SiO2 and 0-0.3% Sb2O3. Commercial high-lead glass can be used in practicing the disclosure. Among the unique advantages are the ability to blend two or more phosphors within the same frit layer which will yield a multi-phosphor-containing glass after firing; the ability to deposit the phosphor onto a substrate into a desired geometric pattern; and the fluorescing layer can be applied to the active plane, with the glass serving as protective substrate.

Abstract: A conductive paste material containing a SiO2-B2O3—ZnO—RO—R2O type lead-free low-melting-point glass that contains, by wt %, 2 to 10% of SiO2, 18 to 30% of B2O3, 0 to 10% of Al2O3, 0 to 25% of ZnO, 20-50% of RO where RO represents one or more of MgO, CaO, SrO, and BaO, and 10 to 17% of R2O where R2O represents one or more of Li2O, Na2O, and K2O.

Abstract: An optical glass comprising, by mass %, 12 to 40% of SiO2, 15% or more but less than 42% of Nb2O5, 2% or more but less than 18% of TiO2, (provided that Nb2O5/TiO2 is over 0.6), 0.1 to 20% of Li2O, 0.1 to 15% of Na2O, and 0.1 to 25% of K2O, and having an Abbe's number ?d of 20 to 30, a ?Pg,F of 0.016 or less and a liquidus temperature of 1,200° C. or lower.

Abstract: An aspect of the present invention relates to an optical glass, which comprises, denoted as weight percent, 2 to 37 percent of SiO2, 0 to 25 percent of B2O3, 0 to 10 percent of GeO2, 18 to 55 percent of a combined content of Li2O, Na2O, K2O, CaO, SrO, and BaO, and 27 to 55 percent of a combined content of TiO2, Nb2O5, and WO3, wherein the weight ratio of SiO2 content relative to a combined content of SiO2 and B2O3 ranges from 0.1 to 1, a weight ratio of the Li2O content to a combined content of Li2O, Na2O, K2O, CaO, SrO, and BaO ranges from 0 to 0.4, and a weight ratio of TiO2 content relative to a combined content of TiO2, Nb2O5, and WO3 ranges from 0.35 to 1, with a refractive index nd of 1.860 to 1.990 and an Abbé number ?d of 21 to 29.

Abstract: There is provided an optical glass with a high refractive index and a low dispersion having a refractive index (nd) of not less than 1.75 and an Abbe's number (?d) of not less than 35 where the image formation characteristic is hardly affected by changes in temperature of the using environment. SiO2, B2O3 and La2O3 are contained as essential components and the ratio of the constituting components are adjusted whereby an optical glass in which a product of ? and ? where ? is an average linear expansion coefficient at ?30 to +70° C. and ? is an optical elasticity constant at the wavelength of 546.1 nm is not more than 130×10?12° C.?1×nm×cm?1×Pa?1 is able to be achieved.

Abstract: An optical glass having optical constants of a refractive index (nd) of 1.78 or over, an Abbe number (?d) of 30 or below, and a partial dispersion ratio (?g, F) of 0.620 or below comprises SiO2 and Nb2O5 as essential components, wherein an amount of Nb2O5 in mass % is more than 40%. The optical glass further comprising, in mass % on oxide basis, less than 2% of K2O and one or more oxides selected from the group consisting of B2O3, TiO2, ZrO2, WO3, ZnO, SrO, Li2O and Na2O wherein a total amount of SiO2, B2O3, TiO2, ZrO2, Nb2O5, WO3, ZnO, SrO, Li2O and Na2O is more than 90% and TiO2/(ZrO2+Nb2O5) is less than 0.32.

Abstract: A process for producing a glass in the production of a glass molded article formed of an optical glass by melting and clarifying a glass raw material to prepare a molten glass and molding said molten glass, the process comprising preparing a glass raw material that gives an oxide glass comprising, by cationic %, 12 to 65% of B3+, 0 to 20% of Si4+, 0 to 6% of Ge4+, 15 to 50% of total of La3+, Gd3+, Y3+, Yb3+, Sc3+ and Lu3+, 4 to 54% of total of Ta5+, Zr4+, Ti4+, Nb5+, W6+ and Bi3+, 0 to 35% of Zn2+, 0 to 9% of total of Li+, Na+ and K+, and 0 to 15% of total of Mg2+, Ca2+, Sr2+ and Ba2+, a total content of said cationic components in the oxide glass being 99 to 100%, and said glass raw material comprising carbonate and sulfate.

Abstract: A crystallizing glass solder for high-temperature applications, containing, in % by weight on an oxide basis: 45% to 60% of BaO, 25% to 40% of SiO2, 5% to 15% of B2O3, 0 to <2% of Al2O3, and at least one alkaline earth metal oxide from the group consisting of MgO, CaO and SrO, wherein CaO is 0% to 5% and the sum of the alkaline earth metal oxides MgO, CaO and SrO is 0% to 20%, preferably 2% to 15%. The glass solder is preferably free from TeO2 and PbO. Preferred embodiments of the glass solder contain from 3 to 15 wt. % of Y2O3 and have low porosity and high stability with respect to a moist fuel gas environment.

Abstract: A crystallizing glass solder for high-temperature applications, containing, in % by weight on an oxide basis: 45% to 60% of BaO, 25% to 40% of SiO2, 5% to 15% of B2O3, 0 to <2% of Al2O3, and at least one alkaline earth metal oxide from the group consisting of MgO, CaO and SrO, wherein CaO is 0% to 5% and the sum of the alkaline earth metal oxides MgO, CaO and SrO is 0% to 20%, preferably 2% to 15%. The glass solder is preferably free from TeO2 and PbO. Preferred embodiments of the glass solder contain from 3 to 15 wt. % of Y2O3 and have low porosity and high stability with respect to a moist fuel gas environment.

Abstract: The present invention relates to an optical glass, a preform for precision press molding, methods for manufacturing the same, and an image pickup device. The optical glass of the present invention not only has a high refractive index, a high dispersion property, and good precision press moldability, but also has good stability with respect to devitrification when reheated (referred to as “devitrification stability upon reheating”), and is an optical glass with a good partial dispersion ratio (Pg, F).

Abstract: The present invention provides processes to immobilize high alkaline radioactive and/or hazardous waste in a silicate-based glass, the waste containing one or more of radionuclides, hazardous elements, hazardous compounds, and/or other compounds. The invention also provides silicate-based glass compositions for use in immobilizing radioactive and/or hazardous waste.

Abstract: An optical glass comprising, by mass %, 12 to 40% of SiO2, 15% or more but less than 42% of Nb2O5, 2% or more but less than 18% of TiO2, (provided that Nb2O5/TiO2 is over 0.6), 0.1 to 20% of Li2O, 0.1 to 15% of Na2O, and 0.1 to 25% of K2O, and having an Abbe's number ?d of 20 to 30, a ?Pg,F of 0.016 or less and a liquidus temperature of 1,200° C. or lower.

Abstract: Embodiments are directed to glass frits containing phosphors that can be used in LED lighting devices and for methods associated therewith for making the phosphor containing glass frit and their use in glass articles, for example, LED devices.

Abstract: Provided is a high refractive index glass, comprising, as a glass composition in terms of mass %, 0.1 to 60% of SiO2+Al2O3+B2O3, having a mass ratio (BaO+La2O3+Nb2O5+TiO2+ZrO2)/(SiO2+Al2O3+B2O3) of 0.1 to 50, amass ratio (MgO+CaO+SrO+BaO)/(BaO+La2O3+Nb2O5+TiO2+ZrO2) of 0 to 10, and a mass ratio (TiO2+ZrO2)/(BaO+La2O3+Nb2O5) of 0.001 to 40, and having a refractive index nd of 1.55 to 2.3.

Abstract: A ceramic foam filter for molten aluminum alloys comprising an alumina silicate rich core and a boron glass shell and a chemical composition comprising: 20-70 wt % Al2O3, 20-60 wt % SiO2, 0-10 wt % CaO, 0-10 wt %; MgO and 2-20 wt % B2O3.

Abstract: An optical glass comprising, by mass %, 12 to 40% of SiO2, 15% or more but less than 42% of Nb2O5, 2% or more but less than 18% of TiO2, (provided that Nb2O5/TiO2 is over 0.6), 0.1 to 20% of Li2O, 0.1 to 15% of Na2O, and 0.1 to 25% of K2O, and having an Abbe's number ?d of 20 to 30, a ?Pg,F of 0.016 or less and a liquidus temperature of 1,200° C. or lower.

Abstract: Provided is a glass for electrode formation, comprising, as a glass composition in terms of mass %, 65.2 to 90% of Bi2O3, 0 to 5.4% of B2O3, and 0.1 to 34.5% of MgO+CaO+SrO+BaO+ZnO+CuO+Fe2O3+Nd2O3+CeO2+Sb2O3 (total content of MgO, CaO, SrO, BaO, ZnO, CuO, Fe2O3, Nd2O3, CeO2, and Sb2O3).

Abstract: Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P2O5 and, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf.

Abstract: An optical glass that is an oxide glass and comprises, by cationic %, 20 to 40% of a total of Si4+ and B3+, 15 to 40% of a total of Nb5+, Ti4+, W6+ and Zr4+, 0.2 to 20% of a total of Zn2+, Ba2+, Sr2+ and Ca2+, and 15 to 55% of a total of Li+, Na+ and K+, the cationic ratio of the content of B3+ to the total content of B3+ and Si4+ being 0.01-0.5, the cationic ratio of the content of Zr4+ to the total content of Nb5+, Ti4+, W6+ and Zr4+ being 0.05 or less, the molar ratio of the total content of Zn2+ and Ba2+ to the total content of Zn2+, Ba2+, Sr2+ and Ca2+ being 0.8-1, the optical glass having a refractive index nd of 1.815 or more and an Abbe's number ?d of 29 or less.

Abstract: Provided is an optical glass which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having a superior visible light transmittance; and (5) it has superior resistance to devitrification during preparation of a preform. The optical glass has a refractive index nd of 2.0 or more, an Abbe's number vd of 20 or less, a glass transition point of 450° C. or below, and a glass composition, in % by mass, of 70 to 90% Bi2O2, 4 to 29.9% B2O2, 0.1 to 10% Li2O+Na2O+K2O, and 0 to 2.5% SiO2+Al2O2 and is substantially free of lead component, arsenic component, F component, TeO2, and GeO2.

Abstract: An object of the present invention is to provide optical glass having improved glass-devitrification resistance and moldability without causing reduction in refractive index, and also provide an optical element using the optical glass as a raw material. Specifically, the present invention provides an optical glass containing components of, by mol %: B2O3: over 60% through 75%; Bi2O3: 24% to 39%; La2O3: 7% or lower; Gd2O3: 7% or lower; and ZrO2: 7% or lower.

Abstract: A flat panel display glass substrate includes a glass comprising, in mol %, 55-80% SiO2, 3-20% Al2O3, 3-15% B2O3, and 3-25% RO (the total amount of MgO, CaO, SrO, and BaO). The contents in mol % of SiO2, Al2O3, and B2O3 satisfy a relationship (SiO2+Al2O3)/(B2O3)=7.5-17. The strain point of the glass is 665° C. or more. The devitrification temperature of the glass is 1250° C. or less. The substrate has a heat shrinkage rate of 75 ppm or less. The rate of heat shrinkage is calculated from the amount of shrinkage of the substrate measured after a heat treatment which is performed at a rising and falling temperature rate of 10° C./min and at 550° C. for 2 hours by the rate of heat shrinkage (ppm)={the amount of shrinkage of the substrate after the heat treatment/the length of the substrate before the heat treatment}×106.

Abstract: A glass flake of the present invention has a composition that includes, in terms of mass %, 59?SiO2<65, 8?Al2O3?15, 47<(SiO2—Al2O3)?57, 1?MgO?5, 20?CaO?30, 0<(Li2O+Na2O+K2O)<2, and 0?TiO2?5 and that is substantially free from B2O3, F, ZnO, BaO, SrO, and ZrO2.

Abstract: Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 ?m?1/2 or less or having a fragility index value, measured in an atmosphere having a dew point of ?5° C. or lower, of 7 ?m?1/2 or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO2, 2 to 45% of B2O3 and/or Al2O3 and 0 to 40% of R?2O in which R? is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO2, B2O3, Al2O3 and R?2O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.

Abstract: The invention relates to aluminoborosilicate-based glasses suitable for use as a solid laser medium. In particular, these aluminoborosilicate-based laser glasses exhibit broad emission bandwidths of rare earth lasing ions. Although not entirely understood, the broadening of the emission bandwidth is believed to be achieved by the presence of significant amounts of lanthanide ions in the glass matrix. In addition, because of the high values of Young's modulus, fracture toughness and hardness, the rare earth aluminoborosilicate glass system according to the invention is also suitable as transparent armor window material.

Abstract: A flat panel display glass substrate according to the present invention includes a glass comprising, as expressed in mol %, 55-80% SiO2, 3-20% Al2O3, 3-15% B2O3, 3-25% RO (the total amount of MgO, CaO, SrO, and BaO), and substantially no As2O3 and Sb2O3. The devitrification temperature of the glass is 1250° C. or less. The glass substrate has a heat shrinkage rate of 75 ppm or less. The heat shrinkage rate is calculated from the amount of shrinkage of the glass substrate measured after a heat treatment which is performed at a temperature rising and falling rate of 10° C./min and at 550° C. for 2 hours by the heat shrinkage rate (ppm)={the amount of shrinkage of the glass substrate after the heat treatment/the length of the glass substrate before the heat treatment}×106.

Abstract: Provided is a high refractive index glass, comprising, as a glass composition in terms of mass %, 0 to 10% of B2O2, 0.001 to 35% of SrO, 0.001 to 30% of ZrO2+TiO2, and 0 to 10% of La2O2+Nb2O5, having a mass ratio of BaO/SrO of 0 to 40 and a mass ratio of SiO2/SrO of 0.1 to 40, and having a refractive index nd of 1.55 to 2.3.

Abstract: An optical glass has a refractive index (nd) of 1.60 or over and excellent transmittance and internal quality. The optical glass comprises 0.1-4 mass % of Ta2O5 to total mass of glass calculated on oxide basis, has ratio of 0.95<Ta2O5/(Ta2O5+(ZrO2)+TiO2+Nb2O5+WO3)×5)?1.00, and further comprises SiO2+B2O3+Al2O3+BaO in a total amount of 81% or over.

Abstract: An optical glass comprising, by mass %, 12 to 30% of total of B2O3 and SiO2, 55 to 80% of total of La2O3, Gd2O3, Y2O3, Yb2O3, ZrO2, Nb2O5 and WO3, 2 to 10% of ZrO2, 0 to 15% of Nb2O5, 0 to 15% of ZnO and 0% or more but less than 13% of Ta2O5, wherein the ratio of the content of Ta2O5 to the total content of La2O3, Gd2O3, Y2O3, Yb2O3, ZrO2, Nb2O5 and WO3 is 0.23 or less, the ratio of the total content of La2O3, Gd2O3, Y2O3 and Yb2O3 to the total content of B2O3 and SiO2 is from 2 to 4, the optical glass having a refractive index nd of 1.86 or more and an Abbe's number ?d of 38 or more, and a rod-shaped glass shaped material and an optical element formed of the above optical glass each.

Abstract: To provide a colored glass plate, which uses sodium sulfate (Na2SO3) as a refining agent and which is capable of stably maintaining the mass percentage of divalent iron calculated as Fe2O3 in the total iron calculated as Fe2O3 at a high level, while suppressing development of an amber color that is derived from sodium sulfate. A colored glass plate made of alkali-containing silica glass containing elements of iron, tin and sulfur, wherein the percentage of the total sulfur calculated as SO3 is at least 0.025% as represented by mass percentage based on oxides, the percentage of divalent iron calculated as Fe2O3 in the total iron calculated as Fe2O3 is from 60 to 80% as represented by mass percentage, and the percentage of divalent tin calculated as SnO2 in the total tin calculated as SnO2 is at least 0.1% as represented by mol percentage.

Abstract: A ceramic material composition comprising from 20 to 50 mass % of a borosilicate glass powder, from 25 to 55 mass % of an alumina filler powder and from 10 to 45 mass % of a filler powder (a high refractive index filler powder) having a refractive index higher than the alumina filler powder, wherein the borosilicate glass powder comprises, as calculated as oxides, from 30 to 70 mass % of SiO2, from 5 to 28 mass % of B2O3, from 5 to 30 mass % of Al2O3, from 3 to 35 mass % of CaO, from 0 to 25 mass % of SrO, from 0 to 25 mass % of BaO, from 0 to 10 mass % of Na2O, from 0 to 10 mass % of K2O, from 0.5 to 10 mass % of Na2O+K2O and from 3 to 40 mass % of CaO+SrO+BaO, and satisfies the following conditions: in the borosilicate glass powder, as represented by mass %, the value of “three times the B2O3 content”+“twice (the CaO content+the SrO content+the BaO content)”+“ten times (the Na2O content+the K2O content)”, is within a range of from 105 to 165.

Abstract: A housing/enclosure/cover can include an ion-exchanged glass exhibiting the following attributes (1) radio, and microwave frequency transparency, as defined by a loss tangent of less than 0.03 and at a frequency range of between 15 MHz to 3.0 GHz; (2) infrared transparency; (3) a fracture toughness of greater than 0.6 MPa·m1/2; (4) a 4-point bend strength of greater than 350 MPa; (5) a Vickers hardness of at least 450 kgf/mm2 and a Vickers median/radial crack initiation threshold of at least 5 kgf; (6) a Young's Modulus ranging between about 50 to 100 GPa;; (7) a thermal conductivity of less than 2.0 W/m° C., and (9) and at least one of the following attributes: (i) a compressive surface layer having a depth of layer (DOL) greater and a compressive stress greater than 400 MPa, or, (ii) a central tension of more than 20 MPa.

Abstract: A fluorophosphate glass containing: P5+ in an amount of 20 to 45 cationic %; Al3+ in an amount of 15 to 35 cationic %; Ba2+ in an amount of 20 to 50 cationic %; B3+ in an amount of 0 to 5 cationic %; F? in an amount of 20 to 50 anionic %; and O2? in an amount of 50 to 80 anionic %. A molar ratio of O2?/P5+ is greater than or equal to 3.5. In addition, a molar ratio of Al3+/P5+ is less than or equal to 1. In addition, the Abrasion FA is less than or equal to 600, or the Knoop hardness number is greater than or equal to 300 MPa. Furthermore, the Abbe number (?d) of the glass is larger than or equal to 66. Moreover, a refractive index (nd) of the glass satisfies an expression (1): nd?2.0614?0.0071×?d.

Abstract: An optical glass is provided that includes a refractive index (nd) of no less than 1.75 and an Abbe number (vd) of no less than 10 as optical constants. A Bi2O3 content is no less than 10% by weight to no more than 80% by weight. The content of SiO2 is lower than the content of B2O3. The total content of SiO2+B2O3 is from no less than 1% by weight to no more than 60% by weight. The content of RO is from no less than 0.1% by weight to no more than 50% by weight. R represents one or more elements selected from the group consisting of Zn, Ba, Sr, Ca, and Mg. The optical glass has at least one of the properties of being substantially free from opacification and/or being substantially devitrified within the glass body under the conditions of a reheating testing.

Abstract: The disclosed optical glass contains, by weight, 20-32% SiO2, 6-10% Li2O (exclusive of 6%), 3-18% Na2O, 3-20% K2O, 8-30% TiO2, 10-55% Nb2O5, 0.3-3% B2O3, 0-3% Gd2O3, 0-3% Y2O3, 0-3% La2O3 (with Gd2O3+Y2O3+La2O3?0.5%), 0-2% Bi2O3, 0-2% WO3, 0-2% SnO2, and has a refractive index (nd) of 1.78-1.85, and an Abbe number (vd) of 23-35.

Abstract: A ceramic composition is prepared to contain a B2O3—SiO2—Al2O3-MO based glass composition (M: Ca, Mg, Sr and/or Ba, B2O3: 4 to 17.5 weight %, SiO2: 28 to 50 weight %, Al2O3: 0 to 20 weight %, and MO: 36 to 50 weight %): 24 to 40 weight %, SrTiO3 and/or CaTiO3: 46 to 75.4 weight %, CuO: 0.1 to 5.0 weight %, CaO: 0.5 to 7.0 weight %, and MnO, ZnO and/or CoO: 10 weight % or more (however, including 0% by weight). The ceramic composition is subjected to firing to produce a ceramic sintered body, and obtain a composite LC component including the ceramic sintered body. While suppressing the shrinkage behavior during firing, dielectric properties can be improved dramatically as compared with conventional cases, and moreover reliability can be ensured.

Abstract: Provided are a glass powder represented as aLi2O-bK2O-cBaO-dB2O3-eSiO2 wherein a+b+c+d+e=1, and and 0.01?a?0.1, 0.01?b?0.1, 0.01?c?0.1, 0.05?d?0.3, and 0.3?e?0.7 are satisfied in terms of mol %, a method of manufacturing the same, and a multi-layered ceramic material using the same. Therefore, a nano glass powder having an average particle size of 100 nm or less and uniform particle size distribution can be manufactured using liquid phase deposition, specifically, a sol-gel method. In addition, the glass powder can be used as sintering additives to decrease a sintering temperature by about 100° C. in comparison with conventional glass upon manufacture of a ceramic material such as MLCC and MLCI, which can be sintered at a low temperature, contributing to improvement of dielectric capacity and inductance capacity of the parts and increasing quality coefficient.

Abstract: A cover glass, containing, by mole percentage: 15 to 40% of P2O5; 15 to 30% of Al2O3; 0 to 15% of SiO2; 0 to 20% of B2O3; 0 to 10% of Li2O; 0 to less than 20% of Na2O; 0 to less than 20% of K2O, provided that Li2O+Na2O+K2O is in a range from 15 to less than 20%; and from 1 to 35% of MgO+CaO+SrO+ZnO. The cover glass being suitable for at least one selected from the group consisting of a solid-state imaging element package and an air-tight sealing of a resin package, and having a sufficient strength not to undergo breakage even when subjected to external force.

Abstract: The invention relates to a furnace for the continuous melting of a composition comprising silica, the said furnace comprising at least two tanks in series, said tanks each comprising at least one burner submerged in the melt. The invention also relates to the process for manufacturing compositions comprising silica using the furnace, the silica and the fluxing agent for the silica being introduced into the first tank. The invention makes it possible to produce glass color frits, tile frits and enamel with a high productivity, low temperatures and short transition times.

Abstract: Glasses comprising SiO2, Al2O3, and P2O5 that are capable of chemical strengthened by ion exchange and having high damage resistance. These phosphate-containing glasses have a structure in which silica (SiO2) is replaced by aluminum phosphate (AlPO4) and/or boron phosphate (BPO4).

Abstract: A compositional range of high strain point alkali metal free, silicate, aluminosilicate and boroaluminosilicate glasses are described herein. The glasses can be used as substrates for photovoltaic devices, for example, thin film photovoltaic devices such as CIGS photovoltaic devices. These glasses can be characterized as having strain points ?570° C., thermal expansion coefficient of from 5 to 9 ppm/° C.