Provided are methods and compositions relating to a dental composition more specifically to prepare the damaged dentin of the tooth for animals and pets such as canine, feline and members of the taxonomic family Equidae prior to repair. The dental compositions include a bioactive glass and a non-aqueous solvent comprising an alcohol, anti-inflammatory and anti-pain reliever.

Provided are methods and compositions relating to a dental composition more specifically to prepare the damaged dentin of the tooth for animals and pets such as canine, feline and members of the taxonomic family Equidae prior to repair. The dental compositions include a bioactive glass and a non-aqueous solvent comprising an alcohol, anti-inflammatory and anti-pain reliever.

A method for forming a protective coating on a surface of a ceramic substrate includes combining a rare-earth oxide, alumina, and silica to form a powder, etching the surface of the ceramic substrate, applying the powder on the etched surface in an amount of from about 0.001 to about 0.1 g/cm.sup.2 to reduce capture of bubbles from off-gassing of the ceramic substrate, heating the powder for a time of from about 5 to about 60 minutes to a temperature at or above the melting point such that the powder melts and forms a molten coating on the surface that has a minimized number of bubbles, and cooling the molten coating to ambient temperature to form the protective coating disposed on and in direct contact with the surface of the ceramic substrate such that the protective coating has a thickness of less than about 1 mil.

A method for forming a protective coating on a surface of a ceramic substrate includes combining a rare-earth oxide, alumina, and silica to form a powder, etching the surface of the ceramic substrate, applying the powder on the etched surface in an amount of from about 0.001 to about 0.1 g/cm.sup.2 to reduce capture of bubbles from off-gassing of the ceramic substrate, heating the powder for a time of from about 5 to about 60 minutes to a temperature at or above the melting point such that the powder melts and forms a molten coating on the surface that has a minimized number of bubbles, and cooling the molten coating to ambient temperature to form the protective coating disposed on and in direct contact with the surface of the ceramic substrate such that the protective coating has a thickness of less than about 1 mil.

A photosensitive glass paste contains a photosensitive organic component, and an inorganic component containing a glass powder and a ceramic filler. The glass powder contains a glass powder having a crystallization point. The difference between the crystallization point and the softening point of the glass powder having a crystallization point is from 85° C. to 180° C. The glass powder having a crystallization point is preferably a SiO.sub.2—B.sub.2O.sub.3—BaO—ZnO—Al.sub.2O.sub.3—MgO—La.sub.2O.sub.3 glass powder.

A photosensitive glass paste contains a photosensitive organic component, and an inorganic component containing a glass powder and a ceramic filler. The glass powder contains a glass powder having a crystallization point. The difference between the crystallization point and the softening point of the glass powder having a crystallization point is from 85° C. to 180° C. The glass powder having a crystallization point is preferably a SiO.sub.2—B.sub.2O.sub.3—BaO—ZnO—Al.sub.2O.sub.3—MgO—La.sub.2O.sub.3 glass powder.

This thick-film resistive element paste is a resistive element paste containing: an electrically conductive metal powder including a copper powder and a manganese powder; a glass powder; and an organic vehicle, and is characterized in that the glass powder contains primarily an alkaline-earth metal.

A multi-layer glass phosphor powder sheet and its preparation method, and a light-emitting device. The preparation method for the multi-layer glass phosphor powder sheet includes: mixing a first optical functional material, a glass powder and an organic carrier to obtain a first slurry, and mixing a second optical functional material, the glass powder and the organic carriers to obtain a second slurry; coating the first slurry on a first substrate, and drying it at a first temperature so that at least some of the organic carrier is volatilized, to obtain a first functional layer, the first temperature being lower than a softening point of the glass powder; coating the second slurry on the surface of the first functional layer, to obtain a second functional layer; and sintering the first substrate on which the functional layers are coated at a second temperature, to obtain the multi-layer glass phosphor powder sheet.

A multi-layer glass phosphor powder sheet and its preparation method, and a light-emitting device. The preparation method for the multi-layer glass phosphor powder sheet includes: mixing a first optical functional material, a glass powder and an organic carrier to obtain a first slurry, and mixing a second optical functional material, the glass powder and the organic carriers to obtain a second slurry; coating the first slurry on a first substrate, and drying it at a first temperature so that at least some of the organic carrier is volatilized, to obtain a first functional layer, the first temperature being lower than a softening point of the glass powder; coating the second slurry on the surface of the first functional layer, to obtain a second functional layer; and sintering the first substrate on which the functional layers are coated at a second temperature, to obtain the multi-layer glass phosphor powder sheet.

Provided is an optical cap component that can give good sensitivity to an infrared light absorption-based optical gas sensor. An optical cap component includes: a window member formed of a lens-shaped infrared transmitting glass; and a cap member including a cylindrical sidewall portion having openings on both a distal end side and a base end side, wherein the window member is fixed to cover the opening on the distal end side of the cap member.