Cordierite Ceramic

Cordierite ceramic is a magnesium aluminum silicate composite that has seen widespread usage in applications requiring high thermal shock resistance. Cordierite products are remarkably cheap but provide exceptional performance. They have a high mechanical power, good electrical insulation, a very low coefficient of thermal expansion, and a high resistance to wear, and can operate safely at temperatures up to 1,200°C. Customization of the hole size and percentage of cordierite porous ceramic is possible.

The molding process of porous cordierite components is the same as that of other advanced ceramics, it is capable of being molded into a wide range of complex geometries through a variety of manufacturing processes, including dry pressing, cold isostatic pressing, extrusion, and injection molding. Because the sintering temperature range of cordierite is narrow, the sintering temperature is only a few degrees away from the decomposition temperature of cordierite, so it is difficult to obtain a compact body. Therefore, it is necessary to add suitable additives to reduce the sintering temperature, expand the sintering temperature range, and improve its dielectric properties. The densely sintered cordierite product can be used as heating coil frame, thermal insulator, electric insulating material resistant to arc action, kiln shelf furniture, protective cover for measuring the temperature of molten steel, welding ferrules, weld backing and so on.

Material Properties

∆ The above data is offered for reference and comparison only, exact data will vary depending on manufacturing method and part configuration.

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