氧化锆超细粉的绿色合成及粉末性能表征  

The Process and Properties of Nanometer Zirconia Powder by Environmental Benign Method

作　　者：黄传勇[1] 唐子龙[1] 张中太[1] 金苗[1] 陈清明[1] 

机构地区：[1]清华大学材料科学与工程系

出　　处：《材料工程》2000年第8期21-24,共4页Journal of Materials Engineering

摘　　要：以低温强碱绿色合成法制备的氧化锆为研究对象 ,借助于 X射线荧光光谱、 X射线衍射、透射电镜、粒径分析等测试方法对粉末性能进行了表征。研究表明 ,绿色合成法具有较大的参数可调容量 ,制备的粉末纯度高、杂质少 ,没有检测到较难清除的氯离子并对此进行了分析。粉末主晶相为四方 /立方相的氧化锆 ,无单斜相存在 ;其一次颗粒尺寸约为 7nm ,二次颗粒分布狭窄约为 1μm;粉末团聚体完全破碎时的压力为 2 5 0 MPa;其单斜相和四方 /立方相保持平衡共存的临界粒径为 12 .6 nm。WT5BZ] Nanometer zirconia powder was prepared by the environmental benign method and the properties of ultrafine zirconia were studied with aids of XRF, XRD, TEM, particle size analysis, etc The experiments show that the method has great accommodation and the powders have high purity, activity and less chlorion The cause was also investigated in the paper In the powder the main phase is t/c zirconia and no monoclinic zirconia is found Compared with the particle size of powder (about 7nm), the agglomerate is narrowly distributed at about 1μm and is crushed under the pressure of nearly 250MPa The coexisting critical size of m and t/c phase is 12 6nm

关 键 词：表征 氧化锆 超细粉 绿色合成 粉末性能 纳米陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业] TB383[化学工程—硅酸盐工业]