铝土矿尾矿协同钒钛磁铁矿尾矿制备刚玉质复相陶瓷
Preparation of Corundum Based Composite Ceramics Using Bauxite Tailings and Vanadium-titanium Magnetite Tailings as Raw Materials
陈靖龙 1郎增瑞 2杨帆 1陈新义 1闵鑫 1房明浩 1黄朝晖 1黄妃慧3
作者信息
- 1. 中国地质大学(北京)材料科学与工程学院,地质碳储与资源低碳利用教育部工程研究中心,非金属矿物与固废资源材料化利用北京市重点实验室,矿物材料国家专业实验室,北京 100083
- 2. 凌源钢铁股份有限公司,辽宁 凌源 122504
- 3. 山东奥福环保科技股份有限公司,山东 德州 251599
- 折叠
摘要
以铝土矿尾矿和钒钛磁铁矿尾矿为原料,经混料、成型和高温烧成等工艺制备了刚玉质复相陶瓷,研究了钒钛磁铁矿尾矿添加量、烧成温度等因素对制得复相陶瓷材料的物相、显微形貌及力学性能的影响规律.结果表明:当铝土矿尾矿与钒钛磁铁矿尾矿质量比为 9∶1 时,在 1 100℃下保温 3 h制得刚玉质复相陶瓷材料的性能最优,其体积密度为 2.71 g/cm3,抗压强度为 276.9 MPa,抗折强度为 67.3 MPa.
Abstract
The corundum based composite ceramics were prepared via a high temperature sintering process,using the bauxite tailings and vanadium-titanium magnetite tailings as raw materials.The effects of vanadium-titanium magnetite tailings addition and sintering temperature on the phase composition,morphology,and mechanical properties of the as-prepared composite ceramics were investigated in detail.The results indicated that the best performances were observed with the content ratio of 9∶1 between bauxite tailings and vanadium-titanium magnetite,after sintering at 1 100℃for 3 h.The optimized volume density,compressive strength,and flexural strength were 2.71 g/cm3,276.9 MPa,and 67.3 MPa,respectively.
关键词
铝土矿尾矿/钒钛磁铁矿尾矿/烧成温度/力学性能/刚玉质复相陶瓷Key words
bauxite tailings/vanadium-titanium magnetite tailings/sintering temperature/mechanical property/corundum based composite ceramics引用本文复制引用
基金项目
国家重点研发计划(2018YFC1901501)
国家重点研发计划(2021YFC1910605)
出版年
2024
国家科技期刊平台
NSTL
万方数据