摘要
采用表面诱导沉淀法，制备了Ａｌ２Ｏ３－ＺｒＯ２（１５ｖｏｌ％）纳米复合粉料，利用透射电子显微镜对其形貌进行了表征．结果表明：在ｐＨ＝５时，可以使ＺｒＯ２前驱体均匀地包裹在Ａｌ２Ｏ３颗粒表面，经过８００℃煅烧之后，Ａｌ２Ｏ３颗粒表面均匀地结合着粒径约为３０ｎｍ的ＺｒＯ２颗粒，ＺｒＯ２颗粒尺寸均匀．该粉体经过２４ｈ球磨和超声波处理之后，未发生ＺｒＯ２颗粒脱落现象，表明ＺｒＯ２颗粒与Ａｌ２Ｏ３颗粒表面结合紧密．
Al2O3-ZrO2(15vol%) nanometer composite powder was prepared by surface-induced precipitation under the condition of PH=5. Zeta potential and TEM were applied for characterizing the specimen. The results show that the structure of the composite powder calcined at 800℃ is tightness and uniform and the average size of ZrO2 particles combined on the surface of Al2O3 particle is about 30urn.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第6期1089-1092,共4页
Journal of Inorganic Materials
基金
国家高新技术发展计划资助项目!(863-715-06-0100)
