MANUFACTURING METHOD FOR POROUS THERMAL INSULATION COATING LAYER, POROUS THERMAL INSULATION COATING LAYER AND INTERNAL COMBUSTION ENGINE USING THE SAME

摘要

Disclosed are a manufacturing method for a porous thermal insulation coating layer, a porous thermal insulation coating layer with substantially reduced thermal conductivity and volumetric heat capacity and an internal combustion engine including the porous thermal insulation coating layer thereby having excellent durability.