氢氧化镁热分解法制备活性氧化镁(英文).pdf

胡文远等:电荷补偿对ZnO:Eu3+材料荧光性能的影响· 1337 ·第38卷第7期氢氧化镁热分解法制备活性氧化镁刘涛1,马鹏程1,于景坤1,李琳2,刘晓明1,马北越1(1. 东北大学材料与冶金学院,沈阳 110004;2. 沈阳航空航天大学理学院,沈阳 110034) 摘要:以氢氧化镁为原料通过热分解法制备了活性氧化镁粉体。利用X射线衍射仪、扫描电镜、压汞仪和热分析仪对粉体进行了表征。结果表明:氢氧化镁通过一步分解生成氧化镁,%,与理论计算质量损失率相吻合。当煅烧温度从400℃增加到600℃,颗粒状氢氧化镁分解生成片状氧化镁。当煅烧温度为550℃,保温10min后,氢氧化镁完全分解,吸碘值达到最大值,。关键词:氢氧化镁;氧化镁;热分解;吸碘值中图分类号: 文献标志码:A 文章编号:0454–5648(2010)07–1337–04 PREPARATION OF MgO BY THERMAL POSITION OF Mg(OH)2LIU Tao1,MA Pengcheng1,YU Jingkun1,LI Lin2,LIU Xiaoming1,MA Beiyue1(1. School of Materials & Metallurgy, Northeastern University, Shenyang 110004; 2. School of Science, Shenyang University of Aeronautics and Astronautics, Shenyang 110034, China) Abstract: Active magnesium oxide was prepared by thermal position method using Mg(OH)2 as raw materials. X-ray powder diffractometer, scanning electronic microscope, mercury intrusion porosimetry and thermal analyser were employed to characterize the powders. The results show that Mg(OH)2 poses to MgO by one step with a total mass loss of %. When the calcination temperature increases from 400 to 600℃, Mg(OH)2 poses to MgO from spherical-like to plate-like particles. Mg(OH)pletely at 550℃ for 10min, and iodine absorption value reaches a maximum value of . Key words: magnesium hydroxide; magnesium oxide; thermal position; iodine absorption value Magnesium oxide (MgO) is a well-kno