二次法制备冶金渣陶瓷-微晶玻璃复合材料

Composites of Steel Slag Ceramics-Glass Ceramic Prepared by a Secondary Firing Method

为了改善钢渣陶瓷的外观颜色和表面性能,采用二次烧成法制备出了钢渣陶瓷-高炉渣微晶玻璃复合材料,并对其结构与性能关系进行了研究。陶瓷层主晶相为辉石相,微晶玻璃层主晶相是辉石相和黄长石相。在陶瓷1220℃烧结温度,微晶玻璃880℃析晶温度的最佳条件下,复合材料耐磨性能显著提高,其磨损体积比单体材料降低1倍以上。陶瓷-微晶玻璃紧密结合的过渡层以及微晶玻璃析晶均匀和增加的辉石相有利于复合材料表面性能的改善。

To improve the property of MSC, a novel composite material slag ceramics-blast furnace slag glass ceramics were prepared. The result shows that composite with better mechanism property can be obtained by the secondary sintering method. The complex has bending strength of 57.7 MPa and grinding pit volume of 5.8 mm 3 . The ceramic layer has a column structure and the glass-ceramic layer has a granular-stumpy structure. Interface between the two layers is not obvious. The principal crystalline phase of the glass ceramic is dominated by melilite and diopside, which is similar to that of non-composite glass ceramic