利用复合工业废渣制备CaO-MgO-Al2O3-SiO2微晶玻璃
来源期刊:有色金属2011年第1期
论文作者:南雪丽 卢学峰 傅希圣
文章页码:118 - 122
关键词:环境工程; 微晶玻璃; 综合利用; 镍渣; 粉煤灰
Key words:environment engineering; glass-ceramics; comprehensive utilization; Ni-slag; fly-ash
摘 要:以镍渣和粉煤灰为主要原料采用熔融法制备微晶玻璃。利用正交设计方法确定工业废渣复合微晶玻璃的最佳原料配比:镍渣34%、粉煤灰28%、钙盐18%、钠盐4%、形核剂TiO2+ZnO(适量)、还原剂11%。通过XRD、SEM分析技术、物理化学性能测试等手段确定微晶玻璃的主晶相、微观结构及性能特征。结果表明,在最佳条件下制备的微晶玻璃主晶相为细小均匀的块状辉石,弯曲强度为58.2MPa,显微硬度为842HV,体积密度为2.87g/cm3,吸水率为0.02%,耐酸性0.02%,耐碱性0.18%,光泽度89光泽单位。
Abstract: The glass-ceramic is produced with nickel slag and fly-ash as primary material.By using orthogonal design method,the optimum composition ratio of raw materials is determined as 34% nickel slag,28%fly-ash,18%calcium salt,4% sodium salt,nucleant TiO2+ZnO,11% reducer.The phase compositions,microstructures and characteristics of glass-ceramics products are determined by the comprehensive methods such as XRD,SEM,physical and chemical properties test.The test results show that the major crystalline phase of the complex glass-ceramics is pyroxene and it has a bending strength of 582MPa,a microhardness of 842HV,a volume density of 2.87g/cm3,a water absorption of 0.02%,a acid resistance of 0.02%,a alkali resistance of 0.18% and glossiness 89.
南雪丽1,卢学峰2,傅希圣1
(1.甘肃省兰州市兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室
2.兰州理工大学 有色金属合金及加工教育部重点实验室,兰州 730050)
摘 要:以镍渣和粉煤灰为主要原料采用熔融法制备微晶玻璃。利用正交设计方法确定工业废渣复合微晶玻璃的最佳原料配比:镍渣34%、粉煤灰28%、钙盐18%、钠盐4%、形核剂TiO2+ZnO(适量)、还原剂11%。通过XRD、SEM分析技术、物理化学性能测试等手段确定微晶玻璃的主晶相、微观结构及性能特征。结果表明,在最佳条件下制备的微晶玻璃主晶相为细小均匀的块状辉石,弯曲强度为58.2MPa,显微硬度为842HV,体积密度为2.87g/cm3,吸水率为0.02%,耐酸性0.02%,耐碱性0.18%,光泽度89光泽单位。
关键词:环境工程; 微晶玻璃; 综合利用; 镍渣; 粉煤灰