173results about How to "Excellent chemical durability" patented technology

A coated article is provided so as to include a coating (e.g., low-E coating, or the like) having at least one layer of or including niobium zirconium (NbZr). The NbZr layer may be metallic in certain example embodiments. Alternatively, an oxide and/or nitride of NbZr may be provided in other example embodiments. The NbZr inclusive layer may be provided as any suitable layer of the multi-layer coating, but in certain example instances may be used as a contact layer adjacent to an infrared (IR) reflecting layer. Coated articles herein may be used in the context of insulating glass (IG) window units, laminated windows, architectural or residential monolithic window units, vehicle window units, and/or the like.

A coated article or layer system is provided which includes at least one infrared (IR) reflecting layer including niobium (Nb) sandwiched between at least a pair of dielectric layers. In certain embodiments, a Cr inclusive barrier layer is provided to protect the Nb inclusive IR reflecting layer, for chemical durability purposes. In other example embodiments, a protective overcoat including a zirconium oxide inclusive layer may be provided to protect the Nb inclusive IR reflecting layer for durability purposes.

A glass ceramics composition for recording disk substrate consists essentially, expressed in terms of weight percent on the oxide basis, of from 65 to 80 wt % of SiO2, from 3 to 15 wt % of Al2O3, from 3 to 15 wt % of Li2O, from 0.2 to 5 wt % of P2O5, and from 0.1 to 15 wt % of ZrO2, wherein a value of ZrO2/P2O5 is within a range from 1.1 to 8.5, expressed in terms of weight percent on the oxide basis.

Tin is added to a zinc cathode target to enhance the sputter efficiency of the target. Films deposited using the cathode, e.g., greater than zero but less than 10 weight percent tin and greater than 90 but less than 100 weight percent zinc improve the chemical durability of a high transmittance, low emissivity coating stack over coating stacks having zinc oxides without tin oxide. High transmittance, low emissivity coating stacks are heated with the heated coating having reduced haze by selecting the thickness of metal primer layer between an infrared reflective film, e.g. a silver film and a dielectric film, e.g., a 52-48 zinc stannate, zinc oxide, tin oxide film or a zinc oxide film. Also disclosed are enhancing films that lower the resistivity of silver films deposited thereon and improve chemical durability of the coating stack.

A coated article is provided so as to include a coating (e.g., low-E coating, or the like) having at least one layer of or including niobium chromium (NbCr). The NbCr layer may be nitrided. The NbCr inclusive layer (e.g., NbCrN_x) may be provided as any suitable layer of the multi-layer coating, but in certain example instances may be used as a contact layer adjacent to an infrared (IR) reflecting layer. Coated articles herein may be used in the context of insulating glass (IG) window units, laminated windows, architectural or residential monolithic window units, vehicle window units, and/or the like.

Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

A glass ceramics composition for recording disk substrate consists essentially, expressed in terms of weight percent on the oxide basis, of from 65 to 80 wt % of SiO2, from 3 to 15 wt % of Al2O3, from 3 to 15 wt % of Li2O, from 0.2 to 5 wt % of P2O5, and from 0.1 to 0.8 wt % of ZrO2.

An alkali-free glass substrate containing, by mass percent, 50-70% of SiO₂, 10-25% of Al₂O₃, 5-20% of B₂O₃, 0-10% of MgO, 0-15% of CaO, 0-10% of BaO, 0-10% of SrO and 0-5% of ZnO, also containing SnO₂ and/or Sb₂O₃ and having a B-OH value of at least 0.485/mm.

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.

The present invention provides a ground coat composition for use in forming an enamel layer on sheet steel that exhibits good spot acid resistance, a satin finish, good bond, and is easy-to-clean. The composition according to the invention includes a glass component that includes a blend of from about 40% to about 70% by weight of a first glass portion including one or more alkali aluminophosphate frits, up to about 30% by weight of a second glass portion including one or more zirconia-phosphate frits, and up to about 30% by weight of a third glass portion including one or more alkali borosilicate frits.

A glass ceramics composition for recording disk substrate consists essentially, expressed in terms of weight percent on the oxide basis, of from 65 to 80 wt % of SiO2, from 3 to 15 wt % of Al2O3, from 3 to 15 wt % of Li2O, from 0.2 to 5 wt % of P2O5, and from 0.1 to 0.8 wt % of TiO2.

The present invention provides a low softening point glass, capable of being molded at a low temperature of about 270 to 400° C. and excellent chemical durability. That is to say, the feature consists in an optical glass for molding, being excellent in chemical durability and having a transformaion temperature (Tg) of at most 350° C. and a specific gravity (Sg) of at most 3.1, which is represented, in term of elements for making up the glass, by the following chemical composition (wt % on oxide basis, calculated from the component composition):

A crystallized glass for an optical filter substrate, which has an average linear expansion coefficient alphaL of from 95x10<-7>/° C. to 130x10<-7>/° C. at from -30° C. to 70° C. and which has a crystal or the like of Na4-xKxAl4Si4O16 (1<x<=4) precipitated therein. Further, a crystallized glass for an optical filter substrate, which comprises from 35 to 60% of SiO2, from 10 to 30% of Al2O3, from 1 to 15% of TiO2+ZrO2, from 4 to 20% of Na2O, from 4 to 20% of K20, from 0.1 to 10% of CaO+SrO+Bao, from 0 to 10% of MgO, etc., and which has alphaL of from 95x10<-7>/° C. to 130x10<-7>/° C. and which has a crystal or solid solution precipitated therein.

The invention discloses a preparing method for a coating with the controllable crosslinking degree, and belongs to the technical field of plasma chemical vapor deposition. The method mainly comprises the following steps that firstly, a base material is placed in a reaction cavity of a plasma chamber, the reaction cavity is continuously subjected to vacuum pumping, the vacuum degree in the reaction cavity reaches 10-200 millitorrs through pumping, the reaction cavity is inflated with inert gases or nitrogen, and a stable plasma environment is provided; then, the reaction cavity is inflated with monomer steam, plasma discharge is started, and chemical vapor deposition is conducted; and discharge is ended, a plasma power source is turned off, inflation of the monomer steam is stopped, vacuum pumping is continuously conducted, and after the vacuum degree of the reaction cavity is kept to range from 10 millitorrs to 200 millitorrs for 1-5 min, inflation of the atmosphere is conducted to one atmospheric pressure, and then the base material is taken out. According to the preparing method, through introduction of polyfunctionality monomer, a dense net-shaped structure is formed by the coating, the material is endowed with good physical and chemical durability, and meanwhile the material can be endowed with excellent waterproof and oil preventing functions; and the binding force and the mechanical strength are improved through combination of the base material and monomer active points.

An optical glass suitable for mold forming at a low temperature including, in percent by weight, 9-25 percent of P₂O₅, 1-20 percent of GeO₂, 12-28 percent of Nb₂O₅, 1-7 percent of TiO₂, 0-55 percent of Bi₂O₃, 0-38 percent of WO₃, 0-3 percent of SiO₂, 0-5 percent of B₂O₃, 0-2 percent of Al₂O₃, 0-5 percent of Li₂O, 0-11 percent of Na₂O, 0-5 percent of K₂O, 0-3 percent of Ta₂O₅, 0-1 percent of Sb₂O₃, at most 13 percent of at least one R₂O selected from the group consisting of Li₂O, Na₂O and K₂O, and at most 15 percent of at least one XO selected from the group consisting of CaO, SrO, BaO and ZnO. The optical glass essentially contains no environmental and human harmful components, facilitates mass production and is stable against devitrification near its softening temperature.