In addition, there is notable increase in porosity compare with tiny change of yield stress results from the shorter sintering time of the PCH process.

• 孔隙率明显的变化和屈服强度微小的变化说明PCH过程中保温时间对孔隙率的影响要大于其对屈服强度的影响，这也证明了PCH能在短时内烧结得出性能较好的多孔材料。