| abstract |
[Problems] There is disclosed a honeycomb filter which can suitably collect particulate matters included in an exhaust gas. n [Means for Solving the Problems] A honeycomb filter 100 including a honeycomb structure 4 and plugged portions 5 wherein partition walls 1 of the honeycomb structure 4 are made of a partition wall material including a plurality of aggregates containing silicon carbide or silicon nitride as a main component, and a binding material which binds the aggregates to one another, the partition wall material contains 15 to 35 mass% of the binding material in a total mass of the aggregates and the binding material, the binding material is made of a material in which mullite particles as reinforcing particles are dispersed in cordierite, or a material in which cordierite is contained as a main component, a thermal expansion coefficient of the partition walls at 40 to 800°C is 4.2 × 10 -6 1/K or less, and when a value of a stress applied to the partition wall material at 900°C is normalized by the maximum value of the stress applied to the partition wall material, a percentage of a plastic deformation displacement in a total displacement at a normalized stress value of 0.9 is in a range of 0.3 to 10%. |