Abstract: Methods and apparatuses for fabricating continuous glass ribbons are disclosed. The method includes forming the continuous glass ribbon by drawing the continuous glass ribbon from a draw housing in a drawing direction, heating at least one portion of a central region of the continuous glass ribbon at a heating location downstream of the draw housing, sensing a temperature of the continuous glass ribbon at a sensed temperature location downstream of the draw housing, and automatically controlling the heating of the at least one portion of the central region of the continuous glass ribbon based on the sensed temperature to mitigate distortion of the continuous glass ribbon.

Abstract: A production process for producing a glass fiber fabric that has good smoothness and is excellent in resin impregnation property is provided wherein glass fiber yarns are woven to obtain a glass fiber fabric.

Abstract: The present invention provides a colored glazing flat glass, the melting point of the colored glazing layer with 1-10 colors on the surface of its substrate glass is 540-730° C., and the substrate glass of its product is characterized in that: calculated as per weight percentage, the said substrate glass contains B2O3 0-3.9%, Na2O 0.01-14%, Fe2O3 0.01-5%, F2O 0%, MgO 7-22.2%, and Al2O3 0.01-39%, wherein the content of SiO2 is 1.9-4.1 times that of CaO, and the content of CaO 1.0-1.8 time(s) that of MgO; the thickness difference of the said substrate glass is less than 0.3 mm; the water absorption of the said substrate glass goes between 0-0.3%; the flexural strength of the said substrate glass is up to 50-180 Mpa; the lower limit of annealing temperature of the said substrate glass goes between 550° C.-710° C.

Abstract: Certain example embodiments of this invention relate to picture frames with glass mats that have patterns painted and/or screen printed thereon, and/or methods of making the same. The patterns may include large blocks of one or more solid colors, textures, images, logos, licensed images/designs, arbitrary designs, and/or the like, in different example instances. The painted glass matting materials of certain example embodiments have been found to provide unique, aesthetically appealing framing-related products that enhance the quality of the original art in desirable ways.

Abstract: Certain example embodiments relate to a method of making a coated article and/or glazing (e.g., for automobile, window, and/or other applications). An opaque paint that is not technically a frit is used to form a desired opaque pattern. The paint is screen printed on a substrate. Screen printing parameters are selected, e.g., so that the mesh has a high threads per inch count; the paint is pushed through the screen using hydraulic forces that account for a sheer thinning property of the paint by balancing squeegee speed, squeegee angle relative to the screen, and hardness of the squeegee; and/or relative humidity above and/or near the screen is at least about 80%. Preferably, the paint is substantially fully curable at 400 degrees C. or less. The substrate with the pattern thereon may be bent using a high temperature process, optionally with another substrate to which it may be laminated.

Abstract: A glass panel is partially printed with a plurality of layers in the form of a print pattern which subdivides the panel into a plurality of discrete printed areas and/or a plurality of discrete unprinted areas, the layers being in substantially exact registration. Exact registration is achieved by the application of a plurality of superimposed layers to a sheet of glass. One layer contains-ceramic ink comprising glass frit. The glass sheet and layers are subjected to a heat treatment process which causes the glass frit to fuse to the glass and bind at least one other layer of ink within the print pattern. Ink outside the print pattern is burnt off and/or vaporised during the heat treatment process and/or removed by a subsequent finishing process, to leave the desired layers in substantially exact registration within the print pattern.

Abstract: The present invention relates to a process for reinforcing a glass-ceramic article, into which a maximum tension is introduced beneath the surface of the glass-ceramic, advantageously in proximity to said surface. The invention also relates to an enamel that can be used for this reinforcement, this enamel being formed from a glass frit having the following composition, the proportions being expressed as weight percentages: SiO2 50-66% MgO 3-8% Na2O ?7-15% K2O 0-3% Li2O ?0-12% CaO ?0-10% BaO ?0-15% Al2O3 0-3% ZrO2 0-3% ZnO 0-5% B2O3 0-8% the sum of the alkaline-earth metal oxides CaO+BaO moreover being between 8 and 15%, and the sum of the alkali metal oxides Na2O+K2O+Li2O moreover being between 7 and 20%. The invention also relates to the reinforced glass-ceramics obtained.

Abstract: The invention provides a glass ceramic glaze composition manufactured using conventional raw material and one or more waste materials, wherein the waste materials are capable of producing glass forming oxides and glass modifying oxides. The waste materials are selected from a group that includes cullet, pozzolanic waste and fly ash. The invention also provides a method for manufacturing the glass ceramic glaze composition. Further, the invention provides different methods of glazing a glass ceramic substrate using the glass ceramic glaze composition.

Abstract: A process for coating a ribbon of float glass is disclosed. It comprises the steps of forming a glass ribbon, depositing a first transparent conductive coating upon a major surface of the ribbon which does not extend to the edges of the ribbon while the ribbon is at an elevated temperature, cooling said coated ribbon under controlled conditions in an annealing lehr and cutting off the edges of the ribbon so as to produce a ribbon having a uniform coating extending across the full width of the cut ribbon which is characterized in that a second conductive coating is deposited upon the uncoated edges of the ribbon while that edge is at a temperature which is above the ambient temperature. The invention finds particular application in the production of coated glass products where the thickness of the glass ribbon is at least 8 mm and most particularly where the thickness of the glass is at least 10 mm.

Abstract: A production process for producing a glass fiber fabric that has good smoothness and is excellent in resin impregnation property is provided wherein glass fiber yarns are woven to obtain a glass fiber fabric.

Abstract: A heat protection glazing is provided that includes an infrared-reflective coating on temperature resistant substrates, which are transparent in the visible spectral range. The coating is resistant and effective relative to long-term thermal loads.

Abstract: There is provided a method of making a heat treated (HT) coated article to be used in shower door applications, window applications, or any other suitable applications where transparent coated articles are desired. For example, certain embodiments of this invention relate to a method of making a coated article including a step of heat treating a glass substrate coated with at least a layer of or including diamond-like carbon (DLC) and an overlying protective film thereon. In certain example embodiments, the protective film may be of or include both (a) an oxygen blocking or barrier layer, and (b) a release layer. Following and/or during heat treatment (e.g., thermal tempering, or the like) the protective film may be removed. Other embodiments of this invention relate to the pre-HT coated article, or the post-HT coated article.

Abstract: A production process for producing a glass fiber fabric that has good smoothness and is excellent in resin impregnation property is provided wherein glass fiber yarns are woven to obtain a glass fiber fabric.

Abstract: A glass layer 3 is irradiated with laser light L2 for temporary firing in order to gasify a binder and melt the glass layer 3, thereby fixing the glass layer 3 to a glass member 4. Here, an irradiation region of the laser light L2 has regions A1, A2 arranged along an extending direction of a region to be fused R and is moved along the region to be fused R such that the region A1 precedes the region A2. The region A2 irradiates the glass layer 3 before the glass layer 3 molten by irradiation with the region A1 solidifies. This makes the glass layer 3 take a longer time to solidify, whereby the binder gasified by irradiation with the region A1 of the laser light L2 is more likely to escape from the glass layer 3.

Abstract: When melting a glass layer 3 by irradiation with laser light L1 along a region to be fused R, the glass layer 3 is irradiated with the laser light L1 having a first heat input along the region to be fused R, so as to gasify a binder and melt a glass frit 2, and the heat input is switched when the melting ratio of the glass layer 3 in a direction intersecting an advancing direction of the laser light L1 exceeds a predetermined value, so as to irradiate the glass layer 3 with the laser light L1 having a second heat input smaller than the first heat input along the region to be fused R, thereby gasifying the binder and melting the glass fit 2, thus fixing the glass layer 3 to a glass member 4.

Abstract: When fixing a glass layer 3 to a glass member 4 by gasifying a binder and melting a glass fit 2, the glass layer 3 is irradiated with laser light L1 along a region to be fused R from an irradiation start position A in the region to be fused R to the irradiation start position A and then continuously again along an unstable region from the irradiation start position A to a stable region start position B in the region to be fused R, so as to re-melt the glass layer 3 in the unstable region, thereby removing the binder, thus turning the unstable region into a stable region, whereupon the glass layer 3 is fixed to the glass member 4.

Abstract: A glass layer 3 is irradiated with laser light L1 for temporary firing, so that a main portion 32 of the glass layer 3 excluding a one portion 31 thereof and extending like a ring open at the one portion 31 is molten and fixed to a glass member 4. As a consequence, the one portion 31 of the glass layer 3 in which the glass frit 2 is not molten exists between one end 32a and the other end 32b of the glass layer 3 fixed to the glass member 4. Superposing a glass member 5 on the glass member 4 with the glass layer 3 interposed therebetween in this state and irradiating the one portion 31 and main portion 32 of the glass layer 3 with second laser light L2, so as to fuse the glass members 4, 5 to each other, can prevent leaks from occurring in the glass layer 3, thereby making it possible to manufacture a glass fusing structure 1 which requires hermetic fusing.

Abstract: At the time of temporary firing for fixing a glass layer 3 to a glass member 4, the glass layer 3 is irradiated with laser light L2 having a ring-shaped irradiation region. At this time, in a width direction of the glass layer 3, two peaks M in a beam profile of the laser light L2 respectively overlap both edge parts 3b of the glass layer 3. This allows a center part 3a and each of both edge parts 3b of the glass layer 3 to be irradiated for shorter and longer times with a part having a relatively high intensity in the laser light L2, respectively. As a consequence, the amount of heat input by irradiation with the laser light L2 is homogenized between the center part 3a and both edge parts 3b in the glass layer 3, whereby the whole glass layer 3 is molten appropriately.

Abstract: When fixing a glass layer 3 to a glass member 4 by irradiation with laser light employing a one portion 31 of the glass layer 3 as start and end points, the glass layer 3 is cut at the one portion 31. In the glass layer 3, the one portion 31 is made thicker than a main portion 32, whereby end parts 3a, 3b rise fully. Melting the end parts 3a, 3b by irradiation with laser light L2 for a preliminary stage for final firing while pressing them toward the glass member 4 reliably buries a gap G and homogenizes the thickness of the glass layer 3. Thus constructed glass layer 3 is irradiated with the laser light L2 for final firing, so as to fuse the glass members 4, 5 to each other.

Abstract: A glass layer 103 containing a binder, a laser-light-absorbing pigment, and a glass frit 102 is irradiated with laser light L2, so as to gasify the binder and melt the glass fit 102, thereby fixing the glass layer 103 to a glass member 104. This allows the glass layer 103 fixed to the glass member 104 to let out the binder and enhance the laser light absorptance, so as to yield a uniform state. As a result, fusing glass members 104, 105 to each other with the glass layer 103 having such a stable state interposed therebetween allows the glass members 104, 105to have a uniform fusing state therebetween.

Abstract: The purpose of the present invention is to provide a crucible which has high viscosity at high temperature, and can be used for a long time, and can be manufactured at low cost, and a method of manufacturing the same. The composite crucible 10 is characterized in the use of mullite (3Al2O3.2SiO2) as the basic material of the crucible. The composite crucible 10 has the crucible body 11 made of mullite material whose main component is alumina and silica, and a transparent vitreous silica layer 12 formed on the inner surface of the crucible body 11. The thickness of the transparent vitreous silica layer 12 is smaller than that of the crucible body 11. The crucible body 11 can be formed by the slip casting method, and the transparent vitreous silica layer 12 can be formed by the thermal spraying method.

Abstract: The present disclosure relates to a method of manufacturing of a glass coated metal product. This invention also relates to a coated metallic substrate material that is suitable for manufacturing flexible solar cells and other articles in which a passivated stainless steel surface is desirable.

Abstract: Certain example embodiments of this invention relate to techniques for making a coated article including a transparent conductive indium-tin-oxide (ITO) film supported by a heat treated glass substrate. A substantially sub-oxidized ITO or metallic indium-tin (InSn) film is sputter-deposited onto a glass substrate at room temperature. The glass substrate with the as-deposited film thereon is subjected to elevated temperatures. Thermal tempering or heat strengthening causes the as-deposited film to be transformed into a crystalline transparent conductive ITO film. Advantageously, this may reduce the cost of touch panel assemblies, e.g., because of the higher rates of the ITO deposition in the metallic mode. The cost of touch-panel assemblies may be further reduced through the use of float glass.

Abstract: There is provided a method of making a heat treated (HT) coated article to be used in shower door applications, window applications, or any other suitable applications where transparent coated articles are desired. For example, certain embodiments of this invention relate to a method of making a coated article including a step of heat treating a glass substrate coated with at least a layer of or including diamond-like carbon (DLC) and an overlying protective film thereon. In certain example embodiments, the protective film may be of or include both (a) an oxygen blocking or barrier layer, and (b) a release layer. Following and/or during heat treatment (e.g., thermal tempering, or the like) the protective film may be removed. Other embodiments of this invention relate to the pre-HT coated article, or the post-HT coated article.

Abstract: This invention relates to lead free, cadmium free, bismuth free low melting high durability glass and enamel compositions. The compositions comprise silica, zinc, titanium, and boron oxide based glass frits. The resulting compositions can be used to decorate and protect automotive, beverage, architectural, pharmaceutical and other glass substrates.

Abstract: The present invention relates to a front plate for a display comprising: a glass substrate having a first surface and a second surface; and a ceramic layer formed on at least a part of a marginal area of the second surface, wherein the front plate has a difference (?T) between a maximum light amount Tmax and a minimum light amount Tmin of transmitted light of 0.

Abstract: The present invention provides a method of making a decorated multilayer glass structure using a single firing step that includes that use of a crystallizing glass enamel composition that contains ingredients to ensure the complete burnout of the organic portion of the composition upon firing and bending of a mated pair of glass sheets. A benefit of the composition is that when applied to one sheet of a mated pair of glass sheets, it burns out completely during firing and bending of the pair. The presence of high levels of oxidizers in the composition ensures a supply of oxygen to enable combustion of the organic vehicle while firing the glass sheets and prior to the sintering of the enamel composition to only one glass sheet in a mated pair of decorated or colored glass sheets.

Abstract: A temperature-resistant glass or glass-ceramic pane is provided. The pane includes a substrate and a tin-oxide layer comprising antimony deposited on the substrate.

Abstract: The present invention relates to a process for reinforcing a glass-ceramic article, into which a maximum tension is introduced beneath the surface of the glass-ceramic, advantageously in proximity to said surface. The invention also relates to an enamel that can be used for this reinforcement, this enamel being formed from a glass frit having the following composition, the proportions being expressed as weight percentages: SiO2 50-66%? MgO 3-8% Na2O 7-15%? K2O 0-3% Li2O 0-12%? CaO 0-10%? BaO 0-15%? Al2O3 0-3% ZrO2 0-3% ZnO 0-5% B2O3 0-8% the sum of the alkaline-earth metal oxides CaO+BaO moreover being between 8 and 15%, and the sum of the alkali metal oxides Na2O+K2O+Li2O moreover being between 7 and 20%. The invention also relates to the reinforced glass-ceramics obtained.

Abstract: In certain example embodiments, a coated article includes respective layers including diamond-like carbon (DLC) and zirconium nitride before heat treatment (HT). During HT, the hydrogenated DLC acts as a fuel which upon combustion with oxygen produces carbon dioxide and/or water. The high temperature developed during this combustion heats the zirconium nitride to a temperature(s) well above the heat treating temperature, thereby causing the zirconium nitride to be transformed into a new post-HT layer including zirconium oxide that is scratch resistant and durable.

Abstract: A method of making float glass is provided that results in a transparent conductive oxide (TCO) films being integrally formed with the float glass at the tin side thereof. In particular, a donor(s) such as antimony and/or an oxide thereof is added to the glass batch during the process of manufacture. The donor diffuses into the tin oxide inclusive layer adjacent the tin bath during the “float” manufacturing process, thereby increasing the number of electrons in the tin oxide inclusive layer so as to form a TCO film at the tin side of the glass.

Abstract: The invention discloses a method for the production of packaging made from borosilicate glass for pharmaceutical products and medical products comprising the steps of: providing a glass tube made from a borosilicate base glass, generating a temporary interface layer on an inner surface of the glass tube, hot-forming the glass tube at a temperature above Tg, and cooling down the glass tube to room temperature.

Abstract: Provided is a method for manufacturing a decorative plate glass using a horizontal tempering furnace including, attaching crystal ice onto a surface of a plate glass, and subjecting the plate glass to a rapid heating and quenching treatment using a horizontal tempering furnace, the method further including: providing crystal ice whose constituent components are regulated such that a melting point temperature of the crystal ice is formed within the set range of the melting point temperature of the crystal ice defined as a toughening temperature of a pane core to 1O0 C above; attaching the crystal ice onto a surface of the plate glass, and rapidly heating the plate glass at a heating temperature inside the horizontal tempering furnace that corresponds to the set range of the melting point temperature of the crystal ice in the horizontal tempering furnace, wherein the rapid heating is performed by controlling a heating time using a first control factor which is readily set with respect to a heating time at the t

Abstract: A titania-doped quartz glass containing 3-12 wt % of titania at a titania concentration gradient less than or equal to 0.01 wt %/?m and having an apparent transmittance to 440 nm wavelength light of at least 30% at a thickness of 6.35 mm is of such homogeneity that it provides a high surface accuracy as required for EUV lithographic members, typically EUV lithographic photomask substrates.

Abstract: A low-index silica coating may be made by forming silica sol including a silane and/or a colloidal silica. The silica precursor may be deposited on a substrate (e.g., glass substrate) to form a coating layer. The coating layer may then be cured and/or fired using temperature(s) of from about 550 to 700° C. A barrier undercoating including a metal oxide, such as, silica, alumina, titania, zirconia, and/or an oxynitride of silica may be deposited between the coating layer and substrate. Preferably, the barrier undercoating does not substantially affect the percent transmission or reflection of the low-index silica coating. The low-index silica based coating may be used as an antireflective (AR) film on a front glass substrate of a photovoltaic device (e.g., solar cell) or any other suitable application in certain example instances.

Abstract: A portable computer includes a base unit with a motherboard secured thereto, a display unit pivotably attached to the base unit and having a recessed portion formed in an outer surface thereof, a solar cell module accommodated in the recessed portion, and a latching device installed on the display unit. Positive and negative first contacts are set in the recessed portion and electrically connected with the motherboard. The solar cell module includes a solar panel for converting solar energy to electricity. Positive and negative second contacts are set on the solar cell module and electrically connected with the solar panel. The second contacts are electrically connected with the corresponding first contacts to transmit electricity to the motherboard. A notch is defined in the solar cell module. The latching device includes a latching portion engaging in the notch, thereby securing the solar cell module to the display unit.

Abstract: A method of making a composite sintered silicon nitride/silicon carbide body, including mixing a predetermined amount of silicon nitride powder with a predetermined amount of silicon carbide powder, heat-treating the resultant mixed powder at a temperature of between about 800 and 1500 degrees Celsius in a substantially nitrogen sintering atmosphere, and producing a thin film of silica around individual silicon nitride and silicon carbide grains. The thin film of silica is useful in retarding the diffusion of oxygen to the silicon nitride particles, slowing their oxidation. The pressure of the sintering atmosphere is not substantially greater than atmospheric pressure.

Abstract: The invention relates to thermally tempered safety glass comprising an non-abrasive and porous SiO2 layer which is stable during sintering and has a refractive index of between 1.25 and 1.40. The inventive safety glass can be obtained by coating standard soda-lime glass with an aqueous coating solution having a pH value of between 3 and 8 and containing between 0.5 and 5.0 wt. % of [SiOx(OH)y]n particles (0<y<4 and 0<x<2) having a particle size of between 10 and 60 nm, and a surfactant mixture. The coated glass is then dried, thermally hardened at temperatures of at least 600° C. for several minutes, and thermally tempered by a flow of air.

Abstract: The present invention provides zinc-free glass frits that can be used to formulate glaze compositions that develop glossy surfaces when fired on ceramic products such as floor tile and wall tile. The zinc-free glass frits include, by weight, from about 50% to about 70% SiO2, from about 5% to about 20% CaO, from about 3% to about 15% Al2O3, up to about 20% BaO, up to about 15% B2O3, up to about 10% K2O, up to about 10% Na2O, up to about 10% ZrO2, up to about 5% MgO and up to about 5% PbO and less than 0.5% ZnO. Glaze compositions comprising the zinc-free glass frits can be fired using conventional double fast firing, single fast firing, and gres porcellanato ceramic firing cycles.

Abstract: The present invention provides a method of forming a glass article having a transparent hydrophobic surface during a glass-forming operation. In accordance with the method, a plurality of solid particles of inorganic material having an average diameter of less than about 400 nm are applied to a surface of the glass article when the glass article is at a temperature within the range of from about 700° C. to about 1200° C. The inorganic particles fuse to the surface of the glass article to form the transparent hydrophobic surface. Optionally, a fluorosilane agent can be applied to the transparent hydrophobic surface to further increase its hydrophobicity. The transparent hydrophobic surface has a nano-structured texture, which makes the surface of the glass article very hydrophobic and easy to clean.

Abstract: The present invention provides a ceramic color composition which comprises, as a solid powder, 50 to 90 wt. % of a mixture containing 5 to 95 parts by weight of a first lead-free glass powder comprising at least SiO2, ZnO, and B2O3 as glass components, and 5 to 95 parts by weight of a second lead-free glass powder comprising at least SiO2, Bi2O3, and B2O3 as glass components, 10 to 40 wt. % of an inorganic pigment, and 0 to 10 wt. % of an inorganic filler. The composition is free of lead and exhibits an excellent mold release property during the heat-molding process of a glass plate having the composition printed thereon. After firing, the composition is excellent in acid resistance, coloration in the bus bar portion, and plating resistance.

Abstract: The present invention provides a method of forming a glass article having a transparent hydrophobic surface during a glass-forming operation. In accordance with the method, a plurality of solid particles of inorganic material having an average diameter of less than about 400 nm are applied to a surface of the glass article when the glass article is at a temperature within the range of from about 700° C. to about 1200° C. The inorganic particles fuse to the surface of the glass article to form the transparent hydrophobic surface. Optionally, a fluorosilane agent can be applied to the transparent hydrophobic surface to further increase its hydrophobicity. The transparent hydrophobic surface has a nano-structured texture, which makes the surface of the glass article very hydrophobic and easy to clean.

Abstract: The subject of the invention is a glass-, ceramic- or vitroceramic-based substrate (1) provided on at least part of at least one of its faces with a coating (3) with a photocatalytic property containing at least partially crystalline titanium oxide.

Abstract: A method of producing glass tiles, glass borders, ornamental panels made from glass or the like, the rear side of which is structured to form a relief, involves the following steps: trimming the glass slab to the desired size, applying an adhesive layer on predetermined regions forming a pattern or a motif on the rear side of the glass slab by means of a printing technique, depositing a powder coating that resists high temperatures on the rear side of the glass slab and removing the excess powder from the non-adhesive regions of the glass slab, positioning the glass slab with its coated rear side on a base that resists high temperatures and is provided with a parting agent, submitting the glass slab to a temperature treatment until plastic deformation is achieved, the glass slab sinking into the pattern or motif formed by the powder coating on account of its own weight, and removing the powder that resists high temperatures from the regions covered with the pattern or the motif once the glass slab has c

Abstract: The invention relates to a process for the production of internally-hardened glass tubes, in which in a tube-drawing process for the production of glass tubes that is known in the art, a coated drawing tool, for example in the process according to Danner a coated mandrel or in the process according to Vello or in A-drawing process a coated needle, is used, whose coating releases coating material upon contact with the inside surface of the tube that is produced and accumulates on the inside glass surface. The chemical resistance is increased by this internal hardening. The invention also relates to devices for implementing this process and uses of the tubes that are produced according to these processes.

Abstract: Glass containers specifically for the storage of pharmaceutical or diagnostic solutions whose surface which comes into contact with the solutions is coated with a layer of oxides and/or nitrides of the elements Si, Ti, Ta, Al or mixtures thereof applied by means of a plasma CVD process.

Abstract: A heat-resistant pipe is arranged so as to traverse below a glass ribbon in a float bath of molten tin, and bubbles emanate from the heat-resistant pipe, thereby making the bottom surface (which is in contact with the tin) uneven. Alternatively, the bottom surface is made uneven with a roller for lifting the glass ribbon out of the float bath into an annealing furnace. In addition to these operations for making the glass surface uneven, a film can be applied to the top face of the glass ribbon (i.e. the surface that is not in contact with the tin) by CVD, supplying a mixed gas of raw material from coaters. Thus, the invention makes it possible to manufacture a glass sheet having an uneven surface efficiently, using a technique for processing the surface of a glass sheet that is suitable for a production line for float glass.

Abstract: The wet film thickness during spraying of the coating composition onto the substrate is preferably adjusted such that it is greater by a factor of at least 8 than the target dry film thickness.

Abstract: The object of the invention is a method and a device for making visually distinguishable markings on the lower surface of a transparent material (5), using a vehicle (1). The marking is provided by causing a mixing of the transparent material and the vehicle by using a laser beam directed through the transparent material. The method can also be used to make markings on laminated glass without damaging the laminate.

Abstract: A method and article are disclosed wherein a substrate is provided with a photocatalytically-activated self-cleaning surface by forming a photocatalytically-activated self-cleaning coating on the substrate by spray pyrolysis chemical vapor deposition or magnetron sputter vacuum deposition. The coating has a thickness of at least about 500 Angstroms to limit sodium-ion poisoning to a portion of the coating facing the substrate. Alternatively, a sodium ion diffusion barrier layer is deposited over the substrate prior to the deposition of the photocatalytically-activated self-cleaning coating to prevent sodium ion poisoning of the photocatalytically-activated self-cleaning coating. The substrate includes glass substrates, including glass sheet and continuous float glass ribbon.