...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mineralogy and Petrology >Effect of microstructure and microchemistry on improvement of hydration and slag attack resistance of ilmenite-doped refractory limestone
【24h】

Effect of microstructure and microchemistry on improvement of hydration and slag attack resistance of ilmenite-doped refractory limestone

机译：微观结构和化学性质对掺钛铁矿质耐火石灰石水化和抗渣侵蚀性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This work studies densification, resistance to hydration and slag attack of 0.0-2.0 wt% ilmenite-doped lime refractories in relation to their thermal equilibrium and microfabric after firing at 1,400-1,700 A degrees C. XRF, XRD, SEM-EDAX, transmitted light microscopy and mercury intrusion methods were used to characterize the fired samples. The ternary diagram CaO-C2S-C(4)AF was applied to the thermal equilibrium data. The rates of hydration and attack by steel-slag were also assessed using cathode-luminescence microscope. Doping limestone with 0.5 wt% ilmenite leads maximizes the rate of densification after firing for 2 h at 1,600 A degrees C. A direct-bonded CaO-CaO network is found in the doped sample with separated islands of Ca-silicate, alumino-ferrite and TiO2-rich Ca, Mg- solid solutions all filling the pores and triple points of the lime grains. Due to the dense microstructure of the doped sample with the direct-bonded lime grains, hydration and slag-attack resistance are enhanced compared with the un-doped sample.
机译：这项工作研究了在1,400-1,700 A的温度下烧成的0.0-2.0 wt％的钛铁矿掺杂的石灰质耐火材料的致密性，耐水合性和耐渣侵蚀的性能与它们的热平衡和微织物有关。XRF，XRD，SEM-EDAX，透射光显微镜和汞侵入法被用来表征被烧制的样品。将三元图CaO-C2S-C（4）AF应用于热平衡数据。还使用阴极发光显微镜评估了钢渣的水合和侵蚀速率。在1,600 A的温度下烧制2 h后，用0.5 wt％的钛铁矿铅掺杂石灰石可最大程度地提高致密化速率。在掺杂的样品中发现了直接键合的CaO-CaO网络，其中钙硅酸盐，铝铁氧体和富含TiO2的Ca，Mg固溶体都充满了石灰颗粒的孔隙和三点。由于具有直接键合石灰颗粒的掺杂样品的致密微观结构，与未掺杂样品相比，增强了水合作用和耐渣侵蚀性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号