METHOD OF PRODUCING A POROUS CERAMIC SINTERED BODY
摘要
<p>A porous ceramic sintered body constituting a diesel particulate filter has communication pores, which comprise large pores (21) and small pores (22). The large pores are present at least in the sintered body surface layer, and the small pores are relatively smaller in diameter than the large pores and are present on the sintered body surface layer and in the interior of it. A nitrogen oxide occlusion catalyst is carried on the surface of the ceramic sintered body and on the inner surface of the communication pores.</p>
