Abstract:
The present invention provides high temperature sealing glass compositions for use in producing mechanically and chemically durable electrically insulating hermetic glass seals between materials such as zirconia, alumina, fosterite, steatite, carbon steels, stainless steels, and superalloys. High temperature sealing glass compositions according to the present invention include a glass component and optional vehicles. The glass component includes one or more glass frits containing in weight percent from about 17% to about 56% BaO+SrO, from about 18% to about 60% SiO.sub.2, from about 6% to about 36% B.sub.2 O.sub.3, from about 2% to about 32% Al.sub.2 O.sub.3, from about 0% to about 25% CaO plus MgO, from about 0% to about 20% Y.sub.2 O.sub.3, from about 0% to about 7% ZrO.sub.2, from about 0% to about 3% alkali oxides, from about 0% to about 5% Co.sub.3 O.sub.4, from about 0% to about 5% NiO, and from about 0% to about 3% MoO.sub.3. Upon firing, high temperature sealing glass compositions of the present invention produce mechanically and chemically durable hermetic glass seals which exhibit electrical resistance of greater than about 30 megaohms when measured at room temperature.
Abstract translation:本发明提供了高温密封玻璃组合物,用于在诸如氧化锆,氧化铝,福斯特,滑石,碳钢,不锈钢和超级合金的材料之间生产机械和化学耐久的电绝缘的密封玻璃密封。 根据本发明的高温密封玻璃组合物包括玻璃组分和任选的载体。 该玻璃组分包括一种或多种玻璃料,其重量百分比含有约17%至约56%的BaO + SrO,约18%至约60%的SiO 2,约6%至约36%的B 2 O 3,约2%至 约32%的Al 2 O 3,约0%至约25%的CaO加MgO,约0%至约20%的Y 2 O 3,约0%至约7%的ZrO 2,约0%至约3%的碱金属氧化物, 0%至约5%的Co 3 O 4,约0%至约5%的NiO和约0%至约3%的MoO 3。 在烧制时,本发明的高温密封玻璃组合物产生机械和化学耐久的密封玻璃密封件,其在室温下测量时表现出大于约30兆欧姆的电阻。
Abstract:
The present invention provides a new and improved coating composition for use in forming a dielectric layer upon a section of metal upon firing. The coating composition includes a glass composition, said glass composition comprising in weight percent a combined weight of BaO and SrO of from about 15% to about 75%, from about 5% to about 35% B.sub.2 O.sub.3, from about 10% to about 40% SiO.sub.2, up to about 10% Al.sub.2 O.sub.3, up to about 7% Co.sub.3 O.sub.4, up to about 20% ZnO, up to about 20% TiO.sub.2, up to about 7% P.sub.2 O.sub.5, up to about 7% CuO, up to about 7% Fe.sub.2 O.sub.3, up to about 7% NiO, a combined weight of SnO, MoO.sub.3, WO.sub.3, Sb.sub.2 O.sub.5, of up to about 20%, up to about 20% Bi.sub.2 O.sub.3, a combined weight of up to about 20% Nb.sub.2 O.sub.5, La.sub.2 O.sub.3, Y.sub.2 O.sub.3 and CeO.sub.2, up to about 5% ZrO.sub.2, up to about 20% CaO, up to about 5% MgO, up to about 2% As.sub.2 O.sub.3 and a combined weight of up to about 3% Li.sub.2 O, Na.sub.2 O and K.sub.2 O.
Abstract translation:本发明提供了一种新的和改进的涂料组合物,用于在烧制时在一段金属上形成电介质层。 涂料组合物包括玻璃组合物,所述玻璃组合物以重量百分比计包含约15%至约75%,约5%至约35%的B 2 O 3,约10%至约40%的BaO和SrO的组合重量, SiO 2,至多约10%的Al 2 O 3,至多约7%的Co 3 O 4,至多约20%的ZnO,至多约20%的TiO 2,至多约7%的P 2 O 5,至多约7%的CuO,至多约7%的Fe 2 O 3 ,高达约7%的NiO,SnO,MoO 3,WO 3,Sb 2 O 5的组合重量,最多约20%,至多约20%Bi 2 O 3,组合重量至多约20%的Nb 2 O 5,La 2 O 3,Y 2 O 3和CeO 2 ,高达约5%的ZrO 2,至多约20%的CaO,至多约5%的MgO,至多约2%的As 2 O 3和最多约3%的Li 2 O,Na 2 O和K 2 O的组合重量。
Abstract:
A method of sealing at least two inorganic substrates together using an induction energy source comprising applying to at least one of the substrates a paste composition including a glass frit, and an induction coupling additive, bringing at least a second substrate into contact with the paste composition, and subjecting the substrates and paste to induction heating, thereby forming a hermetic seal between the two inorganic substrates.
Abstract:
Broadband infrared radiation is used to heat and fuse an enamel paste to form an enamel seal between at least two solid substrates such as glass, ceramic or metal.
Abstract:
Solar cell contacts having good electrical performance are made by a process involving: (a) providing a silicon wafer substrate; (b) providing a paste comprising: (i) aluminum, (ii) glass frit, and (iii) a separate and distinct amount of at least one oxide, such that, together with the aluminum, the glass frit and oxide forms a paste having an exothermic reaction peak, at a temperature of at least 660° C. to less than 900° C., (c) applying the paste to the silicon wafer substrate to form a coated substrate, and (d) firing the coated substrate for a time and at a temperature sufficient to sinter the aluminum and fuse the glass frit and oxide.
Abstract:
Formulations and methods of making solar cell contacts and cells therewith are disclosed. The invention provides a photovoltaic cell comprising a front contact, a back contact, and a rear contact. The back contact comprises, prior to firing, a passivating layer onto which is applied a paste, comprising aluminum, a glass component, wherein the aluminum paste comprises, aluminum, another optional metal, a glass component, and a vehicle. The back contact comprises, prior to firing, a passivating layer onto which is applied an aluminum paste, wherein the aluminum paste comprises aluminum, a glass component, and a vehicle.
Abstract:
Formulations and methods of making solar cells are disclosed. In general, the invention provides a solar cell comprising a contact made from a mixture wherein, prior to firing, the mixture comprises at least one aluminum source, at least one boron source, and about 0.1 to about 10 wt % of a glass component. Within the mixture, the overall content of aluminum is about 50 wt % to about 85 wt % of the mixture, and the overall content of boron is about 0.05 to about 20 wt % of the mixture.
Abstract:
Methods, devices, kits and compositions to treat a myocardial infarction. In one embodiment, the method includes the prevention of remodeling of the infarct zone of the ventricle. In other embodiments, the method includes the introduction of structurally reinforcing agents. In other embodiments, agents are introduced into a ventricle to increase compliance of the ventricle. In an alternative embodiment, the prevention of remodeling includes the prevention of thinning of the ventricular infarct zone. In another embodiment, the prevention of remodeling and thinning of the infarct zone involves the cross-linking of collagen and prevention of collagen slipping. In other embodiments, the structurally reinforcing agent may be accompanied by other therapeutic agents. These agents may include but are not limited to pro-fibroblastic and angiogenic agents.
Abstract:
Durable hermetic seals between two inorganic substrates are produced using a high-intensity electromagnetic energy source, such as laser, to heat and seal enamel layers with controlled absorption of high-intensity energy source. Durable hermetic seals incorporating electrical feedthroughs are also produced.
Abstract:
Hot-melt sealing glass compositions that include one or more glass frits dispersed in a polymeric binder system. The polymeric binder system is a solid at room temperature, but melts at a temperature of from about 35° C. to about 90° C., thereby forming a flowable liquid dispersion that can be applied to a substrate (e.g., a cap wafer and/or a device wafer of a MEMS device) by screen printing. Hot-melt sealing glass compositions according to the invention rapidly re-solidify and adhere to the substrate after being deposited by screen printing. Thus, they do not tend to spread out as much as conventional solvent-based glass frit bonding pastes after screen printing. And, because hot-melt sealing glass compositions according to the invention are not solvent-based systems, they do not need to be force dried after deposition.