将显气孔率相近(25％~29％)、不同尖晶石含量(0,25％,50％,75％,100％,质量分数)的多孔方镁石-尖晶石陶瓷与水泥熟料在1600℃下进行反应,研究了不同尖晶石含量下该陶瓷的显微结构与抗水泥熟料侵蚀性能。结果表明：在1600℃下与水泥熟料反应时,该陶瓷中方镁石相向水泥熟料中溶解的速率很慢,而尖晶石相的则很快；随着尖晶石含量的增加,该陶瓷与水泥熟料反应时两者界面处的液相量增多,使其被水泥熟料侵蚀的程度增大,但同时液相黏度的增大阻止了水泥熟料的进一步渗透、减少了两者的接触面积,降低了其侵蚀指数。
The porous periclase-spinel ceramics with similar apparent porosities (25%-29%)and different spinel content (0,25wt%,50wt%,75wt%,100wt%)were reacted with cement clinker at 1 600 ℃,and the microstructures and cement clinker corrosion resistance of the ceramics with different spinel content were studied. The results show that the dissolution rate of periclase phase in the ceramic into cement clinker was slow while that of spinel phase was fast during the reaction with cement clinker at 1 600 ℃.With the increase of spinel content,the liquid phase content produced by the reaction of ceramics and cement clinker increased,resulting in the increase of the corrosion degree by the cement clinker.Meanwhile the increase of liquid phase viscosity hindered further corrosion of the cement clinker and decreased the contact area,resulting in the decrease of corrosion index.
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