... used for loop framework, insulators of arc-resistance, element of composite materials, burnable nozzle. Cordierite CeramicsThe main chemical ingredient of cordierite ... used for loop framework, insulators of arc-resistance, element of composite materials, burnable nozzle of electrical insulators, and etc. ItemTest ConditionUnit ... /mm(ac V/mil)10Volume resistivity20 °cohm-cm>1012 cordierite ceramics