Sintering-free preparation of porous ceramsite using low-temperature decomposing pore former and its sound-absorbing performance

摘要

Porous ceramsite features excellent sound-absorption performance which is governed by the pore characteristics, such as pore size, apparent porosity, and interconnected pore network. In this work, porous sound-absorption ceramsite with different apparent porosities was prepared by using ammonium hydrogen carbonate as pore former.