An apparatus can include a ceramic component, a metal component, and a glass sealing material that bonds the ceramic and metal components to each other. In an embodiment, the coefficients of thermal expansion of the components and glass sealing material can be within 4 ppm/ C. of one another. The metal component may be relatively oxidation resistant. The glass sealing material may have a relatively low amount of an amorphous phase as compared to one or more crystalline phases within the glass sealing material. The apparatuses can exhibit good bond strength even after long term exposure to high temperature, thermal cycling to a high temperature, or both. In an embodiment, the metal component may allow another metal component of a different composition to be used without a significant impact on the integrity of the bonded apparatus.

Described is a process for preparing a ceramic substrate bonded with a metal foil. Moreover, described is a metal-ceramic-substrate provided with a thick-film layer and the use of a thick-film paste for bonding a metal foil onto a ceramic substrate.

A ceramic-copper composite having a flat plate shape, including: a ceramic layer; a copper layer; and a brazing material layer present between the ceramic layer and the copper layer. When a region having a length of 1,700 ?m in a long-side direction is a region P on a cut surface of the ceramic-copper composite obtained when the ceramic-copper composite is cut with a plane perpendicular to a main surface of the ceramic-copper composite, an average crystal grain size D1 of copper crystals at least partially present in a region P1 within 50 ?m on a side of the copper layer from an interface between the ceramic layer and the brazing material layer in the region P is 30 ?m or more and 100 ?m or less.

Fan blade containment system includes circular tile layer of annular ceramic tiles attached to and extending radially inwardly from a shell, radially inner and outer annular surfaces of ceramic tiles bonded to a radially inner composite layer and the shell respectively with elastomeric inner and outer adhesive layers respectively. Elastomeric adhesive layers between circumferentially adjacent overlapped or scarfed edges along circumferential edges of the ceramic tiles overlap and mate along oppositely facing surfaces of adjacent ones of the ceramic tiles. Inner and outer adhesive layers and elastomeric adhesive layer may be a double-sided adhesive foam tape. Scarfed edges may be bevels or rabbets. Shell may be made of a metal or composite material. Fan blade containment system may be bonded to and extend inwardly from fan case circumscribing fan blades of a fan. Inner composite layer and composite outer shell may be co-cured with ceramic tiles therebetween.

An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.

An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.

An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.

There is provided a ceramic substrate including: a silicon nitride crystal phase containing a plurality of silicon nitride crystals, and grain boundaries between the silicon nitride crystals; and a silicate phase containing magnesium silicate crystals and rare earth silicate crystals, respective maximum particle sizes of the magnesium silicate crystals and the rare earth silicate crystals being smaller than that of the silicon nitride crystals, the silicate phase being positioned in the grain boundaries.

A composite conducive to heat dissipation of an LED-mounted substrate includes a ceramic layer being of a thermal conductivity of 2024 W/mK; a metal layer being of a thermal conductivity of 100200 W/mK; and a graphite layer being of an in-plane thermal conductivity of 950 W/mK and a through-plane thermal conductivity of 3 W/mK, wherein the metal layer is disposed between the ceramic layer and the graphite layer. The composite has one side displaying satisfactory insulation characteristics and the other side displaying satisfactory heat transfer characteristics. The composite incurs low material costs and requires a simple manufacturing process.

An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.