Silicon carbide porous body and method for producing the same

A honeycomb structure comprising partition walls that define a plurality of cells extending from a first end face that is one end surface to a second end face that is an other end surface, the partition walls comprising silicon carbide porous body comprising:

• (A) silicon carbide particles as an aggregate;
• and (B) at least one selected from the group consisting of metallic silicon, alumina, silica, mullite and cordierite, the silicon carbide porous body having amorphous and/or crystalline SiO2 or SiO on a surface(s) of the component (A) and/or the component (B),
• wherein the silicon carbide porous body comprises 4.2% by mass or more to 6% by mass or less of α-cristobalite and 4.6% by mass or more to 7.2% by mass of β-cristobalite in the amorphous and/or crystalline SiO2 or SiO,
• wherein an amount of α-cristobalite is greater than an amount of α-cristobalite in the amorphous and/or crystalline SiO2 or SiO, and
• wherein the silicon carbide porous body has a sodium content of from 0.01 to 0.12% by mass in Na2O equivalent.