Abstract: Sealing materials for use with membrane supports, and in particular to sealing materials that can be used to form a glassy coating on the exterior surface of a membrane support to prevent gases from entering or exiting the support via the support's exterior walls.

Abstract: Glass-bonded ceramics made of non-microcracked non-oxide or oxide ceramic particles which are bound together by glass into a unitary non-microcracked structure are disclosed. Such ceramics are suitable for use in substrates and filters, such as a diesel particulate filter.

Abstract: A method of fowling an opal layer on an optically transparent alkali-silicate glass sheet, wherein a liquidus viscosity of the alkali silicate glass forming the sheet is at least about 200,000 poise, a liquidus temperature of the alkali silicate glass is equal to or less than about 1200° C. and wherein the exposed surface of the glass sheet after the exposing comprises an opal layer. The method includes exposing a surface of the optically transparent alkali silicate glass sheet to an alkali metal salt bath at a temperature equal to or greater than 300° C. for at least 5 minutes.

Abstract: A micro fluidic device (10) comprises one or more fluidic passages or channels or chambers (26, 28) having one or more dimensions in the millimeter to sub-millimeter range, wherein the device (10) further comprises a consolidated mixture comprising a glass frit and a filler (20, 24, 22, 32), the filler having a thermal conductivity greater than a thermal conductivity of the glass frit.

Abstract: A borosilicate glass composition suitable for manufacturing microreactor glass frits includes 12-22 mol % B2O3=12-22; 68-80 mol % SiO2; 3-8 mol % Al2O3, 1-8 mol % Li2O, and one of 0.5±0.1 mol % ZrO2 and 1.1±0.5 mol % F. After sintering a glass frit having the borosilicate glass composition, the glass frit has a surface crystalline layer of 30 ?m or less or is amorphous throughout.

Abstract: A system, method, and ink for printing a data carrying mark on a green ceramic honeycomb structure is provided. The system includes a printer having an ink jet print head that prints a mark, preferably in the form of a two-dimensional data matrix barcode, on a side wall of the green ceramic honeycomb structure. The ink may be a heat resistant ink that comprises a mixture of a glass or glass ceramic frit and a metal oxide colorant. An optical reader is provided for determining if the data is accurately reproduced in the printed mark, as well as any noise factor which may be present due to defective printing. The system includes a turntable that positions the green body for the printing operation, and then rotates the green body to position the printed mark first in front of a dryer, and then in front of the optical reader to determine the quality of the mark. Marked green and ceramic honeycombs are also provided as well as a method for repairing a defective applied bar code on a honeycomb structure.

Abstract: According to one embodiment a solid oxide fuel cell device incorporates a seal resistant to hydrogen gas permeation at a in the range of 600° C. to 9000 C, the seal having a CTE in the 100×10?7/° C. to 120×10?7/° C., wherein the seal includes a sealing material that comprises in weight %, of: (i) 80 to 100 wt % of glass frit, wherein the glass frit includes in mole % MgO, 0-10% CaO, 0-30% BaO, 30-50% B2O3, 0-40% Al2O3, 10-30% SiO2, 10-30%; and (ii) a filler, 0 wt % to 20 wt %.

Abstract: Methods for molding glass and glass composites, including providing a first structure having a first surface, providing a second structure having a second surface, the second surface being patterned and porous, and disposing between the first and second surfaces an amount of a composition comprising a glass, then heating together the first and second structures and the first amount of the composition sufficiently to soften the first amount of the composition such that the first and second structures, under gravity or an otherwise applied force, move toward each other, such that the pattern of the second surface is formed into the first amount of the composition, then cooling the composition sufficiently to stabilize it, the second structure comprising porous carbon having an open porosity of at least 5% and wherein the amount of the composition is removable from the second surface, without damage to the amount of the composition or to the second surface, such that the second surface is in condition for re-use

Abstract: A hermetically sealed glass package preform is provided comprising a glass substrate; a frit comprising 65-100 wt. % of a base glass and about 0-35 wt. % of a filler; wherein the base glass comprises: about 0-5 mole % K2O; about 0-35 mole % Sb2O3; about 0-20 mole % ZnO; about 10-40 mole % P2O5; about 10-60 mole % V2O5; about 0-5 mole % TiO2; about 0-5 mole % B2O3; about 0-5 mole % SiO2; about 0-5 mole % WO3; and about 1-10 mole % of a metal oxide selected from the group consisting of Fe2O3, Nd2O3, La2O3, Ce2O4, Pr6O11, Er2O3, and CeO2; wherein the base glass has a mean particle size distribution of less than about 3 ?m; and wherein the filler has a mean particle size distribution of between about 3 and 7 ?m. The frit is sintered in an atmosphere less oxidizing than air at a temperature of between about 390° C. to 415° C.

Abstract: A solid oxide fuel cell device includes layers of solid electrolyte, cathode plates, anode plates, a frame and a non-contaminating, electrochemically stable sealing material. The sealing material may have a CTE of about 95×10?7/° C. to about 115×10?7/° C. The sealing material may include from about 65 wt % to about 100 wt % of glass frit and from about 0 wt % to about 35 wt % of a filler material. The glass frit may include from about 0 mol % to about 43 mol % of a metal oxide expressed as RO wherein R comprises magnesium, calcium, strontium, barium, zinc and/or combinations thereof. The glass frit may also include from about 0 mol % to about 5 mol % Al2O3; from about 0 mol % to about 7 mol % TiO2; and from about 41 mol % to about 60 mol % SiO2.

Abstract: A silicate glass that is tough and scratch resistant. The toughness is increased by minimizing the number of non-bridging oxygen atoms in the glass. In one embodiment, the silicate glass is an aluminoborosilicate glass in which ?15 mol 1%?(R2O+R?O—Al2O3—ZrO2)—B2O3?4 mol %, where R is one of Li, Na, K, Rb, and Cs, and R? is one of Mg, Ca, Sr, and Ba.

Abstract: A hermetically sealed glass package preform is provided comprising a glass substrate; a frit comprising 65-100 wt. % of a base glass and about 0-35 wt. % of a filler; wherein the base glass comprises: about 0-5 mole % K2O; about 0-35 mole % Sb2O3; about 0-20 mole % ZnO; about 10-40 mole % P2O5; about 10-60 mole % V2O5; about 0-5 mole % TiO2; about 0-5 mole % B2O3; about 0-5 mole % SiO2; about 0-5 mole % WO3; and about 1-10 mole % of a metal oxide selected from the group consisting of Fe2O3, Nd2O3, La2O3, Ce2O4, Pr6O11, Er2O3, and CeO2; wherein the base glass has a mean particle size distribution of less than about 3 ?m; and wherein the filler has a mean particle size distribution of between about 3 and 7 ?m. The frit is sintered in an atmosphere less oxidizing than air at a temperature of between about 390° C. to 415° C.

Abstract: The invention is directed to lead-free glass frit compositions that can be used as sealing frits, the compositions being a blend of: (1) an alkali-ZnO—P2O5 glasses; and (2) at least one cerammed filler material having a crystalline phase selected from the group consisting of beta-quartz, beta-eucryptite, cordierite, and beta-spodumene. The blends of the invention have flow characteristics that enable them to be used at sealing temperatures in the range of 450-550° C., and a CTE value in the range of 60-96×10?7/° C.

Abstract: The invention is directed to lead-free glass frit compositions that can be used as sealing frits, the compositions being a blend of: (1) at least one of two glass families which are SnO—ZnO—P2O5 and alkali-ZnO—P2O5 glasses; and (2) at least one cerammed filler material having a crystalline phase selected from the group consisting of beta-quartz, beta-eucryptite, cordierite, and beta-spodumene. The blends of the invention have flow characteristics that enable them to be used at sealing temperatures in the range of 450-550° C., and a CTE value in the range of 60-90×10?7/° C.

Abstract: Described herein are methods for making microfluidic devices comprising glass or glass-containing materials, wherein the methods have decreased cost and/or improved dimensional properties over similar formed glass articles produced using current techniques.

Abstract: A frit composition useful for sealing a light emitting device is disclosed. The frit composition comprises a glass portion comprising a base component and at least one absorbing component. The glass portion of the frit comprises silica, boron oxide, optionally alumina, and (a) cupric oxide and/or a (b) combination of ferric oxide, vanadium pentoxide, and optionally titanium dioxide. Also disclosed is an article comprising a substrate and a frit, and a glass package comprising two substrates and a frit positioned between the substrates. A method for manufacturing a hermetically sealed glass package comprising the deposition of a glass frit and heating of the glass frit to form a hermetic seal is also disclosed.

Abstract: A system, method, and ink for printing a data carrying mark on a green ceramic honeycomb structure is provided. The system includes a printer having an ink jet print head that prints a mark, preferably in the form of a two-dimensional data matrix barcode, on a side wall of the green ceramic honeycomb structure. The ink may be a heat resistant ink that comprises a mixture of a glass or glass ceramic frit and a metal oxide colorant. An optical reader is provided for determining if the data is accurately reproduced in the printed mark, as well as any noise factor which may be present due to defective printing. The system includes a turntable that positions the green body for the printing operation, and then rotates the green body to position the printed mark first in front of a dryer, and then in front of the optical reader to determine the quality of the mark. Marked green and ceramic honeycombs are also provided as well as a method for repairing a defective applied bar code on a honeycomb structure.

Abstract: Glass-bonded ceramics made of non-microcracked non-oxide or oxide ceramic particles which are bound together by glass into a unitary non-microcracked structure are disclosed. Such ceramics are suitable for use in substrates and filters, such as a diesel particulate filter.

Abstract: A system, method, and ink for printing a data carrying mark on a green ceramic honeycomb structure is provided. The system includes a printer having an ink jet print head that prints a mark, preferably in the form of a two-dimensional data matrix barcode, on a side wall of the green ceramic honeycomb structure. The ink may be a heat resistant ink that comprises a mixture of a glass or glass ceramic frit and a metal oxide colorant. An optical reader is provided for determining if the data is accurately reproduced in the printed mark, as well as any noise factor which may be present due to defective printing. The system includes a turntable that positions the green body for the printing operation, and then rotates the green body to position the printed mark first in front of a dryer, and then in front of the optical reader to determine the quality of the mark. Marked green and ceramic honeycombs are also provided as well as a method for repairing a defective applied bar code on a honeycomb structure.

Abstract: A system, method, and ink for printing a data carrying mark on a green ceramic honeycomb structure is provided. The system includes a printer having an ink jet print head that prints a mark, preferably in the form of a two-dimensional data matrix barcode, on a side wall of the green ceramic honeycomb structure. The ink may be a heat resistant ink that comprises a mixture of a glass or glass ceramic frit and a metal oxide colorant. An optical reader is provided for determining if the data is accurately reproduced in the printed mark, as well as any noise factor which may be present due to defective printing. The system includes a turntable that positions the green body for the printing operation, and then rotates the green body to position the printed mark first in front of a dryer, and then in front of the optical reader to determine the quality of the mark. Marked green and ceramic honeycombs are also provided as well as a method for repairing a defective applied bar code on a honeycomb structure.