Abstract:
Disclosed is a microcracked ceramic body, comprising a predominant phase (greater than 50 wt%) of zirconium tin titanate and a dilatometric coefficient of thermal expansion (CTE) from 25 to 1000C of not more than 40x10 -7 °C -1 as measured by dilatometry and methods for the manufacture of the same.
Abstract:
Ceramic materials and ceramic bodies are disclosed herein, such as low thermal expansion ceramic materials or ceramic bodies, such as ceramic bodies comprising a benitoite-type phase.
Abstract:
A ceramic honeycomb body comprising a peripheral skin layer and a fiber extending around the outer periphery of a honeycomb core, the fiber embedded in the peripheral skin layer is described. A method of making a honeycomb body having a fiber extending around the outer periphery of a honeycomb core and embedded in the peripheral skin layer is also described.
Abstract:
A method of making a porous cordierite ceramic article using chlorite raw material is described herein. The method includes mixing materials to form a cordierite-forming mixture. The cordierite-forming mixture includes a chlorite raw material in an amount of about 5% to about 60% by weight and a platy aluminum silicate raw material in an amount of 0% to about 30% by weight of the total inorganic content of the cordierite-forming mixture. The cordierite-forming mixture is then formed into a green body and fired to form the porous cordierite ceramic article. In some cases, the porous cordierite ceramic article exhibits a low coefficient of thermal expansion (CTE), which provides the article with high thermal shock resistance.
Abstract:
Disclosed are ceramic bodies comprised of a tialite phase and at least one silicate phase with a rare earth oxide and zirconium additions and methods for the manufacture of the same.
Abstract:
Disclosed herein is a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate. Also disclosed are porous ceramic honeycomb structures comprising a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate and methods of preparing a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate.
Abstract:
Disclosed herein are formed ceramic substrates comprising an oxide ceramic material, wherein the formed ceramic substrate comprises a low elemental alkali metal content, such as less than about 1000 ppm. Also disclosed are composite bodies comprising at least one catalyst and a formed ceramic substrate comprising an oxide ceramic material, wherein the composite body has a low elemental alkali metal content, such as less than about 1000 ppm, and methods for preparing the same.
Abstract:
Disclosed herein are formed ceramic substrates comprising an oxide ceramic material, wherein the formed ceramic substrate comprises a low elemental alkali metal content, such as less than about 1000 ppm. Also disclosed are composite bodies comprising at least one catalyst and a formed ceramic substrate comprising an oxide ceramic material, wherein the composite body has a low elemental alkali metal content, such as less than about 1000 ppm, and methods for preparing the same.
Abstract:
A heater assembly including a continuous body. The continuous body includes a plurality of segments that extend between first and second ends. The segments are arranged with respect to a plurality of concentric rings that are concentric about a central axis. A plurality of returns is arranged with each return connecting two of the segments together. The two segments connected by each return are respectively aligned with two radially adjacent concentric rings and are also successive in series along a length of the continuous body. A plurality of circumferential gaps are located between opposing pairs of the returns. Each circumferential gap circumferentially separates two of the segments aligned with respect to a same one of concentric rings. A method of manufacturing a heater assembly and a fluid treatment system including the heater assembly are also disclosed.
Abstract:
Embodiments are directed to glass-ceramic substrates with a III-V semiconductor layer, for example, a GaN layer that can be used in LED lighting devices. The glass-ceramics material is in the anorthite-rutile (CaAl2Si2O8 + TiO2) family or in the cordierite-enstatite (Mg2Al4Si5O18 + MgSiO3) family.