【摘要】 研究了在镁钙质耐火材料中,以不同的引入方式及引入量添加ZrO2,对试样烧结性和抗水化性的影响.通过XRD等分析测试手段对试样进行了检测,结果表明:ZrO2能够促进试样的烧结,1610℃为试样的最佳烧成温度;烧后试样主晶相为方镁石、锆酸钙和游离氧化钙;试样在1610℃烧后,ZrO2加入量为12%时,抗水化性最好;以凝胶方式引入ZrO2的试样其综合性能优于以纳米氧化锆引入的试样.更多还原

【Abstract】 This paper aims to study the influence of introduction of ZrO₂（nano ZrO₂ and gel Zr（OH）₄） with different quantity on the character of sintering and hydration resistance of MgO-CaO refractories.The results showed that 1610℃ was the best sintering temperature and ZrO₂ could accelerate the sintering of the samples.And the main phases of the sintered samples were periclase,calcium zirconate and free calcium oxide.The samples which were sintered at 1 610℃ with 12% ZrO₂ generated the best hydration resistance.Compared with the way of adding nano ZrO₂,the character of sintering and hydration resistance of MgO-CaO-ZrO₂ refractories was better than with adding Zr（OH）₄ gel.更多还原