采用烧结法以钛渣代替二氧化钛为晶核剂制备了高掺量的赤泥粉煤灰微晶玻璃，主要考查钛渣掺量对微晶玻璃产品的理化性能、物相组成及微观结构的影响.结果表明，主晶相均为钙铝黄长石，次晶相为钙铁透辉石和钙长石；结晶程度随钛渣含量而增加，微晶玻璃颜色逐渐变深，但钛渣含量过高，晶体会发生凝结现象；当钛渣掺量为6．6％时，固废总掺量达到了95．3％，抗压强度、抗折强度、显微硬度、耐酸性、耐碱性分别为89．43和53．13 MPa、6．62 GPa、0．041％、0．15％，产品性能达到建筑用微晶玻璃JC/T872-2000的质量标准.
The high content of red mud and fly ash glass ceramics was prepared by sintering process,using tita-nium slag to replace titanium dioxide as Nucleation Agent.The effect of titanium slag content on physicochemi-cal properties,phase composition and microstructure of glass ceramics products were researched mainly.The results show that the main crystalline phase is gehlenite,and the secondary crystalline phase is hedenbergite and anorthite.The crystallinity increases with titanium slag content,but the titanium slag content is high,the crys-tal will occur condensation phenomenon.When titanium slag content is 6.6%,the compressive strength,flexur-al strength,microhardness,acid resistance,alkali resistance is 89.43,53.13 MPa,6.62 GPa,0.041%,0.15%, respectively.Product performance is meet standard of JC/T 872-2000 with building decoration glass-ceramics.
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