Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and quaternary ammonium. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals (a*.sup.2+b*.sup.2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.

A wavelength conversion device, comprising a light-emitting layer, a reflection layer, and a substrate layer stacked upon each other in that order. The light-emitting layer comprises a wavelength conversion material and a first glass powder. The reflection layer comprises a reflection particle and a second glass powder. The second glass powder has a smaller particle diameter compared to the first glass powder. The technical solution achieves equivalent softening of the reflection layer and light-emitting layer in a sintering process for manufacturing the wavelength conversion device, thereby overcoming the issue of inadequate softening of the reflection layer and improving an adhesive strength between the reflection layer and the substrate layer.

A glass composition, a macrocomposite, and methods of forming the macrocomposite including dispersing or immersing a metal in a glass. Preferably, the macrocomposite does not include an organic resin, an adhesive, or a polymer.

A composite plate is mainly made from the following raw materials in percentage by weight: 35% to 45% of calcium carbonate, 45% to 55% of cullet, 5% to 15% of unsaturated polyester resin, 0.1% to 1% of a curing agent, 0.1% to 1% of an auxiliary agent, wherein a ratio of an amount of the calcium carbonate to an amount of the cullet is 0.75%. The invention employs cullet, calcium carbonate, and resin as the main raw materials to prepare an artificial stone plate; no natural quartz is used, and hence the raw material cost is low. A reasonable ratio of cullet to calcium carbonate reduces the use of resin, which further reduces the raw material cost. Through a reasonable combination of different raw materials, the composite plate of the invention has physical and chemical properties and decorative abilities that are similar to those of traditional artificial quartz stone.

A method of forming metallic nanoparticles in glass is disclosed that creates evenly distributed metallic nanoparticles with desired size in any glass type.

Formation of a source of electrons trapped on the surface of the glass particles by crushing and grinding glass material into powder followed by heat treatment of the glass powder to neutralise metal ions doped in the glass by the trapped source of electrons, followed by the aggregation and growth of the metal into nanoparticles. The present method allows the homogeneous distribution of metal nanoparticles throughout the glass volume. The size and concentration of the metallic nanoparticles is controlled by the heat treatment temperature and duration as well as the amount of metal ions.

To provide a dental porcelain paste which can maintain maintaining the paste state and have excellent application property for a long period of time and hardly causes carbonization or bubbles due to the influence of an organic component or a polymer component during firing. The present invention provides a dental porcelain paste for preparing a dental prosthesis device, comprising: 50.0 to 80.0 wt. % of a glass powder (a) having a maximum particle diameter of 100 m or less and an average particle diameter of 1 to 20 m, 0.5 to 10.0 wt. % of a hydrophobized fine particle silica (b) having an average primary particle diameter of 1 to 50 nm, and 10.0 to 49.5 wt. % of an organic solvent (c) having a boiling point it is within (bp) of 100 to 300 C.

Provided is a ceramic powder having precipitated therein -eucryptite or a -quartz solid solution as a main crystal phase, having an average particle diameter D.sub.50 of 20 m or less, and having a negative thermal expansion coefficient in a range of from 30 C. to 300 C.

The present disclosure describes spill retention mechanisms for cooktops and other substrates. The spill retention mechanisms can hinder the movement of liquids primarily due to the physical attributes of the mechanisms, unlike hydrophobic mechanisms which hinder movement primarily due to the chemical attributes of the hydrophobic material.

A multilayer coil component includes a component element assembly in which an inner conductor is disposed and an outer electrode disposed on the surface of the component element assembly. The component element assembly includes a first dielectric glass layer in which the inner conductor is embedded and second dielectric glass layers that are thin layers disposed on respective principal surfaces of the first dielectric glass layer. The primary component of each of the first dielectric glass layer and the second dielectric glass layers is formed of a glass material and has a filler component containing at least quartz, and the second dielectric glass layers have a lower quartz content than the first dielectric glass layer.

A composite material is provided that includes at least one first material and particles. The particles have a negative coefficient of thermal expansion and the particles have a sphericity of at least 0.7. The composite material includes at least 30 vol % of the particles at a particle size of d.sub.501.0 m or at least 40 vol % of the composite material at a particle size d.sub.50>1.0 m.