Abstract: The invention relates to a glass composition and a glass frit adequate for low temperature sintering agent at 1,100° C. or less, and a dielectric composition and a multilayer ceramic capacitor using the same. The glass composition comprises aLi2O-bK2O-cCaO-dBaO-eB2O3-fSiO2, in which a, b, c, d, e and f satisfy following relationships: a+b+c+d+e+f=100, 2?a?10, 2?b?10, 2?c?25, 0?d?25, 5?e?20, and 50?f?80.

Abstract: The invention relates to a glass for dental applications which can be used as a glazing material of dental restorations and resists high temperatures, and thus does not tend to flow.

Abstract: The invention relates to glass articles suitable for use as electronic device housing/enclosure or protective cover which comprise a glass material. Particularly, a housing/enclosure/cover comprising 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: The invention concerns a glass composition for a glass body of an illuminating means with external electrodes, wherein the quotient of the loss angle (tan ?[10?4]) and the dielectric constant (??) amounts to tan ?[10?4]/??<5, i.e., tan ?/??<5×10?4). In this way, the total power loss of the illuminating means with external electrodes can be minimized in a targeted manner by means of the glass properties.

Abstract: An alkali aluminosilicate glass that is chemically strengthened and has a down-drawable composition. The glass has a melting temperature less than about 1650° C. and a liquidus viscosity of at least 130 kpoise and, in one embodiment, greater than 250 kpoise. The glass undergoes ion exchange at relatively low temperatures to a depth of at least 30 ?m.

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: As a jig material to use under plasma reaction for producing semiconductors, the present invention provides a quartz glass having resistance against plasma corrosion, particularly corrosion resistance against fluorine-based plasma gases, and which is usable without causing anomalies to silicon wafers; the present invention furthermore provides a quartz glass jig, and a method for producing the same. A quartz glass containing 0.1 to 20 wt % in total of two or more types of metallic elements, said metallic elements comprising at least one type of metallic element selected from Group 3B of the periodic table as a first metallic element and at least one type of metallic element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, lanthanoids, and actinoids as a second metallic element, provided that the maximum concentration of each of the second metallic elements is 1.0 wt % or less.

Abstract: A semiconductor encapsulation material of the present invention contains a glass for metal coating which has a strain point of 480° C. or higher, a temperature corresponding to a viscosity of 104 dPa·s of 1,100° C. or lower, and a thermal expansion coefficient at 30 to 380° C. of 70×10?7 to 110×10?7/° C. The semiconductor encapsulation material of the present invention contains no environmentally harmful substances, has a heat resistance temperature as high as 500° C. or above, and can be used for the encapsulation of metals susceptible to oxidation, e.g., Dumet.

Abstract: A photosensitive glass paste that can be fired at a low temperature for a short period of time and that can suppress generation of voids and diffusion of Ag in glass layers formed by firing, and a high-performance multilayer wiring chip component manufactured by using the above photosensitive glass paste are provided. As a sintering aid glass which is combined with a ceramic aggregate and a primary glass, a glass having a contact angle to the ceramic aggregate smaller than that of the primary glass to the ceramic aggregate is used, and the content of the sintering aid glass is set to 5 to 10 percent by volume of the inorganic component. As the sintering aid glass, a glass containing SiO2, B2O3, CaO, Li2O, and ZnO at a predetermined ratio is preferably used. As the primary glass, a glass containing 70 to 90 percent by weight of SiO2, 15 to 20 percent by weight of B2O3, and 1 to 5 percent by weight of K2O can be used.

Abstract: The invention is directed to a method for preparing visible light optical polarizers using a non-halide silver salt and any glass composition that the non-halide silver salts is soluble, provided that the glass composition, including the silver salt, was a halide content that is, on a molar basis, 10% or less than the silver content, on a molar basis, of the glass composition. The silver containing glass is hydrogen reduced prior to stretching to form an optical polarizer. The invention enables one to form a visible light polarizer having a polarizing layer thickness in the range 10-40 ?m in which the silver particles have a surround index sufficiently removed from the blue polarizer region to allow good contrast.

Abstract: The invention relates to a glass composition and a glass frit adequate for low temperature sintering agent at 1,100° C. or less, and a dielectric composition and a multilayer ceramic capacitor using the same. The glass composition comprises aLi2O-bK2O-cCaO-dBaO-eB2O3-fSiO2, in which a, b, c, d, e and f satisfy following relationships: a+b+c+d+e+f=100, 2?a?10, 2?b?10, 0?c?25, 0?d?25, 5?e?20, and 50?f?80.

Abstract: Glass for gas discharge tubes, which are used in fluorescent lamps, EEFL lamps, LCD displays, computer monitors, telephone displays and TFT displays, and a process for making it are described. The glass contains, in % by weight based on oxide content: SiO2, 60-75; B2O3, >25-35; Al2O3, 0-10; Li2O, 0-10; Na2O, 0-20; K2O, 0-20; MgO, 0-8; CaO, 0-20; SrO, 0-5; BaO, 0-5; ZnO, 0-3; ZrO2, 0-5; TiO2, 0-10; Fe2O3, 0-0.5; CeO2 0-0.5; MnO2, 0-1.0; Nd2O3, 0-1.0; WO3, 0-2; Bi2O3, 0-5; MoO3, 0-5; As2O3, 0-1; Sb2O3, 0-1; SO42?, 0-2; Cl-, 0-2 and F?, 0-2, wherein ?Li2O+Na2O+K2O=0-25% by weight; ?MgO+CaO+SrO+BaO=0-20; ?Fe2O3+CeO2+TiO2+PbO+As2O3+Sb2O3 is at least 0-10; and ?PdO+PtO3+PtO2+PtO+RhO2+Rh2O3+IrO2+Ir2O3 is from 0.00001-0.1.

Abstract: Glass, glass compositions, methods of preparing the glass compositions, microfluidic devices that include the glass composition, and methods of fabricating microfluidic devices that include the glass composition are disclosed. The borosilicate glass composition includes silicon dioxide (SiO2) in a range from about 60% to 74% by total composition weight; boric oxide (B2O3) in a range from about 9% to 25% by total composition weight; aluminum oxide (Al2O3) in a range from about 7% to 17% by total composition weight; and at least one alkali oxide in a range from about 2% to 7% by total composition weight. In addition, the borosilicate glass has a coefficient of thermal expansion (CTE) that is in a range between about 30×10?7/° C. and 55×10?7/° C. Furthermore, the borosilicate glass composition resists devitrification upon sintering without the addition of an inhibitor oxide.

Abstract: A method of applying a ceramic coating to a substrate comprises laminating one or more layers of a green ceramic tape to a rigid substrate using a tackifying resin to adhere the tape to the substrate. Upon firing, the tackifying resin ensures near zero shrinkage of the tape in the XY plane without usage of elevated pressures or temperatures during lamination of green tape to the substrate. The thermal degradation completion temperature of the tackifying resin is lower than that of the resin binder used in the green tape.

Abstract: A mother glass composition for graded index lenses, comprising the following glass components in mol %: 40?SiO2?65, 1?TiO2?10, 0?MgO?22, 2?Li2O?18, 2?Na2O ?20, 6?Li2O+Na2O?38, and from 0.1 to 15 mol % of any two or more of CaO, SrO and BaO, a graded index lens using the mother glass composition, a manufacturing method of the graded index lens, and an optical product and an optical instrument using the graded index lens, are provided.

Abstract: There is provided a glass member for optical parts that represents a greater absolute value |?n| of refractive index difference ?n of visual light between base glass and heterogeneous phase region. In the glass member for optical parts, the heterogeneous phase region distinguishable by a different refractive index is formed at an intended location inside a glass by focused irradiation of a pulsed laser. When a multicomponent optical glass of SiO2, Rn2+RO, and TiO2 is used, |?n| of no less than 0.005 can be attained under a lower irradiation intensity. It is suitable for optical parts such as optical low-pass filters, diffractive optical parts, optical diffusion parts, optical filters, lenses and microlens arrays.

Abstract: An optical glass having optical constants of refractive index (nd) within a range from 1.49 to 1.54 and Abbe number (? d) within a range from 55 to 65 comprises, in mass %, SiO2 >65-75% R2O (R is at least one selected from the group ?15-25% consisting of Li, Na, K and Cs) where Li2O ?0.1-5.0% Na2O ?1.0-10.0% K2O ?5.0-20.0% and Cs2O ?0-5.0% R?O (R? is at least one selected from the group ?0.5-10% consisting of Mg, Ca, Sr or Ba) where MgO ?0-10% and/or CaO ?0-10% and/or SrO ?0-10% and/or BaO ?0-10% ZnO ?0-<3.0% and/or B2O3 ?0-6.0% and/or Al2O3 ?0-<1.0% and/or TiO2 ?0-<2.0% and/or ZrO2 ?0-2% and/or WO3 ?0-3.0% and/or Sb2O3 ?0-2.0% and a fluoride or fluorides of a metal element or ?0-2%.

Abstract: The glass is advantageous for microstructuring, especially reactive ion etching with fluorine and fluorine compounds, and has a glass composition based on oxide content and expressed in mol % of: SiO2, 40-70; GeO2, 0-30; B2O3, 5-20; P2O5, 5-20; WO3, 0-10; As2O3, 0-10; Yb2O3, 0-5; and Lu2O3, 0-5. Microstructure components, such as micro arrays, Fresnel lenses, micro wafers, or micro lens wafers, made by a method including reactive ion etching from the glass are also part of the present invention.

Abstract: A grey glass composition is suitable for architectural and/or vehicle window applications. The grey glass may achieve a combination of good visible transmission, a low SHGC, and desirable coloration. In certain example embodiments, the grey glass includes iron, erbium (Er), neodymium (Nd) and/or praseodymium (Pr) in the colorant portion of the glass.

Abstract: A glass composition suitable for producing a graded-refractive-index rod lens having an angular aperture of 16-20° without containing lead or thallium and a graded-refractive-index rod lens produced from the composition are provided. The composition is a base glass composition for graded-refractive-index rod lenses, characterized by comprising, in terms of % by mole, 20?SiO2?52, 1?B2O3?30, 12?Li2O?18, 8?Na2O?15, 0?MgO?15, 0?SrO?10, 0?BaO?10, 0?ZnO?15, 0?TiO2?15, 0?Nb2O5?5, 0?Ta2O5?5, and 3<Bi2O3?13, provided that 45?SiO2+B2O3?65, 9?MgO+ZnO+TiO2?25, and 0?Nb2O5+Ta2O5?5, and by containing substantially no lead and substantially no thallium.

Abstract: Titanium is added in the form of atoms, a colloid, or ions to a glass to be subjected to laser processing in which the ablation or vaporization caused by the energy of an absorbed laser light is utilized. Since titanium can be incorporated into the glass through melting, the threshold value for processing can be easily regulated by changing the amount titanium to be added and a material having evenness in processability can be obtained.

Abstract: The invention relates to a borosilicate glass having the following composition (in wt. % based on oxide content): between 55 and 80 of SiO2; between 8 and 25 of B2O3; between 0.5 and 10 of Al2O3; between 1 and 16 of Li2O+Na2O+K2O; between 0 and 6 of MgO+CaO+SrO+BaO; between 0 and 3 of ZnO; between 0 and 5 of ZrO2; between 0 and 5 of Bi2O3; and between 0 and 3 of MoO3; the sum of the Bi2O3 and MoO3 amounting to between 0.01 and 5. The invention also relates to a fluorescent lamp, especially a miniature fluorescent lamp.

Abstract: A glass composition of the present invention includes the following components, in terms of mass % and mass ppm: 60 to 79% SiO2; 0 to 13% B2O3 (exclusive of 13%); 0 to 10% Al2O3; 0 to 10% Li2O; more than 0% but not more than 20% Na2O; 0 to 15% K2O; 0 to 10% MgO; 0 to 15% CaO; 0 to 15% SrO; 0 to 15% BaO; 0 to 10% ZnO; 0 to 15% Nb2O5; 0 to 20% Ta2O5; more than 0.02% but not more than 10% TiO2; and 0.5 to 50 ppm T-Fe2O3 (where T-Fe2O3 denotes a total iron oxide obtained by converting all of iron compounds into Fe2O3).

Abstract: Optical glass having a refractive index (nd) of 1.85 or greater, and an Abbe number (?d) falling within the range of 10 to 30, which is suited for molding by precision mold press is provided. The optical glass is characterized by including B2O3+SiO2 in an amount of 3 to 60%, Bi2O3 in an amount of 25 to 80%, RO+Rn2O in an amount of 5 to 60% (wherein R represents one or more selected from a group consisting of Zn, Ba, Sr, Ca, and Mg; and Rn represents one or more selected from a group consisting of Li, Na, K, and Cs), with each component in the range expressed in oxide-based mole percentage, and is characterized in that transparency in the visible region is high, and that the transition point (Tg) is 480° C. or lower. The optical glass is characterized by having a spectral transmittance of 70% or greater at a wavelength of 600 nm for a thickness of 10 mm.

Abstract: Optical glass having a refractive index (nd) of 1.75 or greater, and an Abbe number (?d) falling within the range of 15 to 40, which is suitable for molding by precision mold press is provided. The optical glass is characterized by including B2O3+SiO2 in an amount of 10 to 70%, Bi2O3 in an amount of 5% or more and less than 25%, RO+Rn2O in an amount of 5 to 60% (wherein R represents one or more selected from a group consisting of Zn, Ba, Sr, Ca, and Mg; and Rn represents one or more selected from a group consisting of Li, Na, K, and Cs), with each component in the range expressed in oxide-based mole, and is characterized in that transparency in the visible region is high, and that the transition point (Tg) is 520° C. or lower. The optical glass is characterized by having a spectral transmittance of 70% or greater at a wavelength of 550 nm, for a thickness of 10 mm.

Abstract: An optical glass having high-refractivity and low-dispersion optical properties and having a low glass transition point so that a heat-treating furnace can be operated for a long period of time. The optical glass has a refractive index nd of at least 1.875, an Abbe's number ?d of at least 39.5 and a glass transition point Tg of 700° C. or lower, and contains at least one of La2O3, Gd2O3, Y2O3 or Yb2O3 and at least one of ZrO2, Ta2O5 or Nb2O5, with a weight ratio of the total content of La2O3, Gd2O3, Y2O3 and Yb2O3 to the total content of SiO2 and B2O3 of from 3.2 to 5 and the weight ratio of the total content of ZrO2, Ta2O5 and Nb2O5 to the total content of SiO2 and B2O3 is from 1.1 to 1.5.

Abstract: Glass for gas discharge tubes, which are used in fluorescent lamps, especially EEFL and miniaturized lamps, LCD displays, computer monitors, telephone displays and TFT displays, and a process for making it are described. The glass contains, in % by weight based on oxide content: SiO2, 60-85; B2O3, 0-10; Al2O3, 0-10; Li2O, 0-10; Na2O, 0-20; K2O, 0-20; MgO, 0-8; CaO, 0-20; SrO, 0-5; BaO, 0-5; ZnO, 0-8; ZrO2, 0-5; TiO2, 0-10; Fe2O3, 0-5; CeO2 0-5; MnO2, 0-5; Nd2O3, 0-1.0; WO3, 0-2; Bi2O3, 0-5; MoO3, 0-5; PbO, 0-5; As2O3, 0-1; Sb2O3, 0-1; SO42?, 0-2; Cl?, 0-2 and F?, 0-2, wherein ? Li2O+Na2O+K2O=5-25% by weight; ? MgO+CaO+SrO+BaO=3-20; ? Fe2O3+CeO2+TiO2+PbO+As2O3+Sb2O3 is at least 0-10; and ? PdO+PtO3+PtO2+PtO+RhO2+Rh2O3+IrO2+Ir2O3 is 0.1.

Abstract: The invention relates to a glass composition of silica-soda-lime type colored blue which comprises the coloring agents below in a content varying within the following limits, by weight: Fe2O3 (total iron) 0.2 to 0.51% CoO 10 to 50 ppm Cr2O3 10 to 300 ppm CuO 0-400 ppm the glass exhibiting a redox factor of less than 0.35, a dominant wavelength ?D of between 485 and 489 nm, an excitation purity of less than 13% and a selectivity at least equal to 1.1 under a thickness of between 3 and 5 mm. It also relates to the glass sheet obtained from the abovementioned composition, said sheet being intended in particular to form an automobile window or for the construction industry.

Abstract: The present invention refers to optical glasses designated to be used in the areas of imaging, sensors, microscopy, medical technology, digital projection, photolithography, laser technology, wafer/chip technology as well as telecommunications, optical communications engineering and optics/illumination in the automotive sector with a refractive index nd of 1.60?nd?1.72 and/or an Abbe number vd of 32?vd?45 with pronounced short flint character, good chemical resistance, excellent resistance to crystallization, good solarization stability and the following composition (in % by weight based on oxides): SiO2 30-45 B2O3 ?8-12 Na2O ?8-15 CaO 0.

Abstract: Provided is a nonlead glass for covering an electrode, which comprises, in mol %, B2O3 15-65%, SiO2 2-38%, MgO 2-30%, MgO+CaO+SrO+BaO 5-45%, Li2O 1-15%, Li2O+Na2O+K2O 2-25% and others, and which comprises ZnO 0-15%. Provided is a nonlead glass for covering an electrode, which comprises, in mol %, B2O3 25-65%, SiO2 2-38%, MgO 2-30%, MgO+CaO+SrO+BaO 5-45%, Li2O+Na2O+K2O 2-25%, Al2O3 0-30, TiO 0-10% and ZnO 0-15%.

Abstract: Various embodiments described herein include rare earth doped glass compositions that may be used in optical fiber and rods having large core sizes. Such optical fibers and rods may be employed in fiber lasers and amplifiers. The index of refraction of the glass may be substantially uniform and may be close to that of silica in some embodiments. Possible advantages to such features include reduction of formation of additional waveguides within the core, which becomes increasingly a problem with larger core sizes.

Abstract: The optical glass for press molding of the present invention contains 35 to 45% by weight of SiO2, 15 to 30% by weight of B2O3, and 18 to 33% by weight of CaO so that the total amount is 75 to 96% by weight. Also, the glass has an index of refraction (nd) of 1.55 to 1.63, an optical constant value ranging from 55 to 63 by the Abbe number (?d), a specific gravity of not more than 2.75, and a glass transition temperature (Tg) of not more than 550° C. According to the present invention, it is possible to provide inexpensive optical glass for press molding which exerts intended optical performance while realizing further reduction in size and weight of optical devices.

Abstract: The PbO-free UV-absorbing glass is made under oxidative conditions and has a composition, in % by weight, of: SiO2, 55-79; B2O3, 3-25; Al2O3, 0-10; Li2O, 0-10; Na2O, 0-10; K2O, 0-10; MgO, 0-2; CaO, 0-3; SrO, 0-3; BaO, 0-3; ZnO, 0-3; ZrO2, 0-3; CeO2, 0-1; Fe2O3, 0-1; WO3, 0-3; Bi2O3, 0-3; MoO3, 0-3; ?LiO+Na2O+K2O=0.5 to 16 and ?MgO+CaO+SrO+BaO+ZnO=0-10. It also contains from 0.1 to 10% TiO2 with at least 95% of the titanium as Ti+4 so that it has a high visible transmission, reduced color centers, and a sharp UV absorption edge. It is especially useful in lamps display devices and glass-to-metal seals.

Abstract: The present invention provides a mother glass composition for gradient-index lens, from which a lead-free Li-based gradient-index lens that is excellent in weather resistance, in particular weather resistance in the presence of water, can be manufactured. The mother glass composition includes the following components, indicated by mol %: 40?SiO2?65; 1?TiO2?10; 0.1?MgO?22; 0.15?ZnO?15; 2?Li2O?18; 2?Na2O?20; 0?B2O3?20; 0?Al2O3?10; 0?K2O?3; 0?Cs2?O?3; 0?Y2O3?5; 0?ZrO2?2; 0?Nb2O5?5; 0?In2O3?5; 0?La2O3?5; and 0?Ta2O5?5. The mother glass composition further includes at least two oxides selected from CaO, SrO, and BaO each in a range of 0.1 mol % to 15 mol %. The total of MgO+ZnO is greater than or equal to 2 mol %. The molar ratio of ZnO/(MgO+ZnO) is in a range of 0.07 to 0.93. The total of Li2O+Na2O is in a range of 6 mol % to 38 mol %. The total of Y2O3+ZrO2+Nb2O5+In2O3+La2O3+Ta2O5 is in a range of 0 mol % to 11 mol %.

Abstract: A glass for laser processing of the present invention can be laser-processed by causing ablation or evaporation by laser beam energy absorbed therein, wherein the glass for laser processing has a composition that satisfies the following conditions: 60?SiO2+B2O3?79 mol %; 5?Al2O3+TiO2?20 mol %; and 5?Li2O+Na2O+K2O+Rb2O+Cs2O+MgO+CaO+SrO+BaO?20 mol %, where 5?TiO2?20 mol %. The present invention can provide a glass for laser processing that has a low laser processing threshold value as well as a low thermal expansion coefficient.

Abstract: A glass substrate for use as the substrate of an information recording medium such as a magnetic disk, magneto-optical disk, DVD, or MD or of an optical communication device, and a glass composition for making such a glass substrate, contains the following glass ingredients: 45 to 75% by weight of SiO2; 1 to 20% by weight of Al2O3; 0 to 15% by weight, zero inclusive, of B2O3; SiO2+Al2O3+B2O3 accounting for 65 to 90% by weight; a total of 7 to 20% by weight of R2O compounds, where R=Li, Na, and K; and a total of 0 to 12% by weight, zero inclusive, of R?O compounds, where R?=Mg, Ca, Sr, Ba, and Zn. Moreover, the following conditions are fulfilled: B2O3=0% by weight, or Al2O3/B2O3?1.0; and (SiO2+Al2O3+B2O3)/(the total of R2O compounds+the total of R2O compounds)?3.

Abstract: An object of the invention is to provide glass for semiconductor encapsulation and an outer tube for semiconductor encapsulation which are friendly to environment and allow semiconductor electronic parts to have a heat resistance of 700° C. or higher as normal maximum temperature, and semiconductor electronic parts. The glass for semiconductor encapsulation according to the invention contains essentially no lead and the temperature at which viscosity reaches 1010 dPa·s is 700° C. or higher. According to such a constitution, since the glass contains essentially no lead, no harmful ingredients are discharged in the production of the outer tube for semiconductor encapsulation and in the production of the semiconductor electronic parts and thus the glass is friendly to environment. Moreover, since the temperature at which viscosity reaches 1010 dPa·s is 700° C. or higher, semiconductor electronic parts such as a bead thermistor using the same has a heat resistance of 700° C.

Abstract: The method for making UV-absorbing glass, which transmits in a visible range, includes melting raw materials to form a melt and producing the melt under oxidative conditions. The UV-absorbing glass is free of PbO and has the following composition (in % by weight): SiO2, 55-79; B2O3, 3-25; Al2O3, 0-10; Li2O, 0-10; Na2O, 0-10; K2O, 0-10; MgO, 0-2; CaO, 0-3; SrO, 0-3; BaO, 0-3; ZnO, 0-3; ZrO2, 0-3; CeO2, 0-1; Fe2O3, 0-1; WO3, 0-3; Bi2O3, 0-3; MoO3, 0-3; with ? Li2O+Na2O+K2O=0.5 to 16 and ? MgO+CaO+SrO+BaO+ZnO=0-10. The melt composition is characterized by including 0.1 to 10 % TiO2 and from 0.01-10 % As2O3. The glass made by the method and its properties are also disclosed. The glass is useful in lamps, LCD displays, monitors and glass-to-metal seals with molybdenum, tungsten and Fe—Co—Ni alloys.

Abstract: As a jig material to use under plasma reaction for producing semiconductors the present invention provides a quartz glass having resistance against plasma corrosion, particularly corrosion resistance against fluorine-based plasma gases, and which is usable without causing anomalies to silicon wafers; the present invention furthermore provides a quartz glass jig, and a method for producing the same. A quartz glass containing 0.1 to 20 wt % in total of two or more types of metallic elements, said metallic elements comprising at least one type of metallic element selected from Group 3B of the periodic table as a first metallic element and at least one type of metallic element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, lanthanoids, and actinoids as a second metallic element, provided that the maximum concentration of each of the second metallic elements is 1.0 wt % or less.

Abstract: Glass, glass compositions, methods of preparing the glass compositions, microfluidic devices that include the glass composition, and methods of fabricating microfluidic devices that include the glass composition are disclosed. The borosilicate glass composition includes silicon dioxide (SiO2) in a range from about 60% to 74% by total composition weight; boric oxide (B2O3) in a range from about 9% to 25% by total composition weight; aluminum oxide (Al2O3) in a range from about 7% to 17% by total composition weight; and at least one alkali oxide in a range from about 2% to 7% by total composition weight. In addition, the borosilicate glass has a coefficient of thermal expansion (CTE) that is in a range between about 30×10?7/° C. and 55×10?7/° C. Furthermore, the borosilicate glass composition resists devitrification upon sintering without the addition of an inhibitor oxide.

Abstract: Provided are ceramic catalysts comprising a borosilicate glass substrate having substantially interconnecting pores with an average pore size of approximately 1 micron or less and particles comprising one or more noble metals on the surface of the substantially interconnecting pores. Also provided are methods of manufacturing the ceramic catalyst, and glass compositions used to manufacture the ceramic catalyst.

Abstract: The fluorescent lamp is made with an aluminum-free borosilicate glass having a composition, in percent by weight, based on oxide content of: SiO2, 65-77; B2O3, 7-20; Li2O, 0-2; Na2O, 0-4; K2O, 3-12; MgO, 0-2; CaO, 0-2; with MgO+CaO, 0-3; BaO, 0-3; ZnO, 0-2; ZrO2, 0.8-12; TiO2, 0-10; CeO2, 0-1; and F?, 0-0.6. Preferred embodiments with more than 1% by weight TiO2 have especially good UV blocking properties and are especially suitable for lamp glass for backlights. Other embodiments have good sealing properties to tungsten, KOVAR®, and molybdenum and have coefficients of thermal expansion ? of 4.7 to 5.3×10?6/K, good chemical resistance, and a working point VA of between 990° C. and 1290° C.

Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.

Abstract: An optical glass wherein an amount of change in refractive index (?n: difference in refractive index between a state before radiation and a state after radiation) caused by radiation of laser beam at wavelength of 351 nm having average output power of 0.43W, pulse repetition rate of 5 kHz and pulse width of 400 ns for one hour is 5 ppm or below is provided. The optical glass comprises a fluorine ingredient and/or a titanium oxide ingredient and/or an arsenic oxide ingredient. The optical glass suffers little change in refractive index by radiation of strong light having wavelengths of 300 nm to 400 nm such as ultraviolet laser.

Abstract: A solid oxide fuel cell device incorporates a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600° C.–900° C., the seal having a CTE in the 100×10?7/° C. to 120×10?7/° C., wherein the sealing material comprises in weight %, of: (i) a 80 wt % to 100 wt % glass frit, the glass frit itself having a composition comprising in mole percent of: SiO2 15–65; Li2O 0–5; Na2O 0–5; K2O 0–10; MgO 0–5; CaO 0–32; Al2O3 0–10; B2O3 0–50; SrO 0 to 25, wherein the total amount of alkalis is less than 10 mole %; and (ii) zirconia or leucite addition 0 wt % to 30 wt.

Abstract: A bioactive glass having a composition substantially comprising 20 to 40 mol % of CaO, 40 to 60 mol % of SiO2, and 10 to 20 mol % of MgO is high in bioactivity and mechanical strength, and a sintered calcium phosphate glass using the bioactive glass as a sintering aid is excellent in biocompatibility and mechanical strength.

Abstract: An optical glass wherein an amount of change in refractive index (?n: difference in refractive index between a state before radiation and a state after radiation) caused by radiation of laser beam at wavelength of 351 nm having average output power of 0.43 W, pulse repetition rate of 5 kHz and pulse width of 400 ns for one hour is 5 ppm or below is provided. The optical glass comprises a fluorine ingredient and/or a titanium oxide ingredient and/or an arsenic oxide ingredient. The optical glass suffers little change in refractive index by radiation of strong light having wavelengths of 300 nm to 400 nm such as ultraviolet laser.

Abstract: Disclosed herein are a self-foamed porous ceramic composition and a method for making a porous ceramic using the self-foamed porous ceramic composition. The self-foamed porous ceramic is obtained by fabricating a glass consisting of 41˜47 mole % of calcium oxide (CaO), 41˜47 mole % of silica (SiO2) and 6˜18 mole % of borate (B2O3), pulverizing the glass into a finely-divided glass powder having an average particle size of 1˜10 ?m, molding the glass powder, and sintering the molded glass powder.

Abstract: The invention relates to an antimicrobial, anti-inflammatory and disinfecting glass, whereby the glass comprises: 30–95 wt. % SiO2,0–40 wt. % Na 2O, 0–40 wt. % K2O, 0–40 wt. % Li2O, 0–35 wt. % CaO, 0–10 wt. % MgO, 0–10 wt. % Al2O3, 0–15 wt. % P2O5 wt. % B2O3?, 0–10 wt. % NaF, 0–10 wt. % LiF, 0–10 wt. % KF, 0–10 wt. % CaF2, 0–5 wt. % Ag2O, 0–10 wt. % MgF2,0–2 wt. % Fe2O3and 0–10 wt. % XJy, where X?Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Ag or Zn and y=1 or y=2 and the sum of XJy> is 10 ppm.

Abstract: A borosilicate glass, having a spectral edge wavelength in a UV range of 280 to 325 nm, which can be set in a simple and defined manner, with the composition in percent by weight on an oxide basis of 60–75% SiO2, 10–15% B2O3, 5–15% Na2O, 5–10% K2O, 0–5% Li2O, 0.1–1 CaO, 0.5–3% BaO, >0–1.7% TiO2, 0–0.5% Sb2O3, and normal refining agents.