| abstract |
An exhaust gas purification device using a honeycomb structure used as a filter for collecting fine particles in exhaust gas discharged from an internal combustion engine such as a diesel engine or as a catalyst carrier for purifying the exhaust gas is a honeycomb structure as a ceramic. It is formed using a composite composed of particles and crystalline silicon. Since the particulates and the like collected in the honeycomb structure are burned and removed in a temperature range of 250 to 800 ° C, even when a relatively low temperature distribution occurs or a long-term cooling cycle is repeated, accumulation of thermal stress is suppressed. The occurrence of cracks is prevented, and the thermal shock resistance is improved. |