【摘要】 本研究以硅酸盐尾矿和电解锰渣(MS)为主要原料，在低温条件下成功制备了一种高孔隙率、低密度的多孔硅灰石陶瓷。系统考察了烧结温度、SiC添加量及MS掺量对陶瓷的孔隙率、吸水率、孔径分布、堆积密度及抗弯强度的影响。结果表明，在1140℃烧结温度下，添加0.4 wt%SiC可实现陶瓷的最佳发泡效果。随着MS含量从8.33 wt%增加至41.67 wt%，陶瓷的孔隙率由78.4%下降至63.7%，堆积密度由0.96升至1.13 g/cm~3，抗弯强度由8.43提高至11.22 MPa。此外，当MS含量为8.33 wt%且烧结温度为1160℃时，陶瓷表现出最佳的耐腐蚀率可达99.55%。该研究不仅为高性能多孔陶瓷的低温制备提供了技术依据，也为固体废弃物资源化利用提供了新的思路。更多还原

【Abstract】 A porous wollastonite ceramic with high porosity and low density has been successfully fabricated at low temperature with silicate tailings and electrolytic manganese slag(MS) as primary raw materials in this study. The influences of calcination temperature, SiC, and MS addition amounts on porosity, water adsorption, pore size distribution, bulk density, and bending strength were systematically studied. The results showed that 0.4 wt% of SiC was optimal for the ceramic foaming at a sintering temperature of 1140 ℃. The porosity of ceramics reduced from 78.4% to 63.7%, bulk density elevated from 0.96 to 1.13 g/cm~3, and bending strength increased from 8.43 to 11.22 MPa as the MS increased from 8.33 wt% to 41.67 wt%. Moreover, the best corrosion resistance performance was reached to 99.55% with 8.33 wt% MS content and a sintering temperature of 1160 ℃. This work is of significance for the solid waste utilization.更多还原