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徐瑞,马景陶,郝少昌,赵兴宇,李自强,邓长生,刘兵.利用毛细管微流体装置辅助内凝胶工艺制备小尺寸ZrO2微球[J].稀有金属材料与工程(英文),2020,49(2):572~576.[Xu Rui,Ma Jingtao,Hao Shaochang,Zhao Xingyu,Li Ziqiang,Deng Changsheng and Liu Bing.Preparation of small-sized ZrO2 microspheres by capillary microfluidic device assisted internal gel process[J].Rare Metal Materials and Engineering,2020,49(2):572~576.]
Preparation of small-sized ZrO2 microspheres by capillary microfluidic device assisted internal gel process
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Received:March 18, 2019  Revised:April 23, 2019
DOI:
Key words: Internal gel process  capillary microfluidic device  room temperature broth  small size microspheres
Foundation item:政府间国际科技创新合作重点专项(2016YFE0100700),清华大学“十三五规划”学科建设基金(2017HYYXKJS1)
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Xu Rui,Ma Jingtao,Hao Shaochang,Zhao Xingyu,Li Ziqiang,Deng Changsheng and Liu Bing  
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Abstract:
      :In this paper, we find a broth formulation that is stable at room temperature for 15h and does not solidify and it is good for forming gel microspheres. And we use a capillary microfluidic device assisted internal gel process to prepare successfully small size (<12m) ZrO2 ceramic microspheres. The factors affecting the size of ZrO2 microspheres are analyzed. The results show that under the same conditions, the larger the flow rate or the viscosity of the silicone oil, the smaller the size of the ZrO2 microspheres. The larger the flow rate of the broth or the larger the throat size of the capillary microfluidic device, the larger the size of the ZrO2 microspheres; the CV value of the ZrO2 microspheres are less than 5% by image recognition, indicating that the ZrO2 ceramic microspheres prepared by the method are uniform in size and monodisperse; the sintered microspheres are dense and showing a cubic phase by SEM and XRD.