Nanoporous ceramic for atomization core and preparation method thereof

Abstract

The present disclosure discloses a nanoporous ceramic for an atomization core, and a preparation method thereof. The nanoporous ceramic includes: nano-silica 1 to 60 parts, a ceramic powder 10 to 80 parts, a pore-forming agent 1 to 50 parts, and a sintering additive 1 to 40 parts. The preparation method includes: (1) weighing raw materials, and mixing and ball-milling the raw materials in a ball mill; (2) bake-drying the ball-milled raw materials to obtain a dried mixed powder; (3) adding the dried mixed powder to molten paraffin under stirring, and continuously stirring a resulting mixture to obtain a paraffin slurry; (4) injecting the paraffin slurry into a mold, cooling the mold for forming, and performing demolding to obtain a paraffin mold; (5) preheating the paraffin mold for paraffin removal to obtain a paraffin-removed sample; and (6) sintering and cooling the paraffin-removed sample to obtain the nanoporous ceramic.