【摘要】 研究了以正硅酸乙酯和硝酸铝为原料 ,采用溶胶—凝胶法结合CO2 超临界流体低温干燥技术合成莫来石超细粉的制备参数控制 ,并利用XRD、TEM和BET技术研究了溶胶—凝胶过程中溶胶胶粒大小的控制和凝胶结构的控制及超临界流体干燥技术的控制。更多还原

【Abstract】 This paper dicussed the preparative parameteres synthesized mullite ultrafine powder by Sol-Gel and CO 2 SCFD (Supercritical Fluid Drying) method from Teos and Al(NO 3) 3·9H 2O as raw materials.The control parameteres of the colloidal particle size forming in Sol-Gel process and the gel structure and the SCFD were studied by XRD、TEM and BET techniques.更多还原