摘要:以分析纯Ca(OH)2和m-ZrO2为原料,按物质的量1:1进行配料,添加不同质量分数Fe2O3粉末作为添加剂,经充分混合后压制成?20 mm×20 mm圆柱试样,再经1600℃保温3 h煅烧制备得到锆酸钙陶瓷试样(CaZrO3)。利用显气孔体密测定仪、X射线衍射仪及扫描电子显微镜分析Fe2O3粉末添加剂对CaZrO3陶瓷材料烧结性能、物相组成及微观结构的影响。结果表明:当没有添加Fe2O3粉末时,试样烧结前后线变化率为12.72%,体积密度为3.92g·cm-3,显气孔率为14.9%,CaZrO3晶粒尺寸为4.22μm;当加入质量分数0.75%Fe2O3粉末时,试样烧结前后线变化率为17.20%,体积密度为4.68 g·cm-3,显气孔率为6.8%,CaZrO3晶粒尺寸为5.21μm。
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