%0 Journal Article
%T Preparation of TiO2 Ultrafine Powder in Terms of SCFD Technique<br>超临界流体干燥法制备纳米级TiO2的研究
%A ZHANG Jing-Chang
%A CAO Wei-Liang
%A YU Ding-Xin
%A SHI Jin-Hua
%A DOU Zheng-Chang
%A <br>张敬畅
%A 曹维良
%A 于定新
%A 石锦华
%A 窦正仓
%J 无机材料学报
%D 1999
%I Science Press
%X Titanium dioxide ultrafine powders were prepard by sol-gel and supercritical fluid drying(SCFD) methods from cheap inorganic salts as raw materials. The ultrafine powders were characterized in terms of XRD, DTA-TG and TEM techniques. The dependence of particle size onsolution PH value, concentration, ageing time and SCFD condition was also investigated. It wasfound that the ultrafine powders so obtained eXhibit small crystallite sizes of 3-6urn, better thermal stability and less weight loss.
%K supercritical fluid drying
%K nanometer material
%K TiO_2
%K gasgel<br>超临界流体干燥
%K 二氧化钛
%K 气凝胶
%K 纳米材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=D7CBA5B00F075495&yid=B914830F5B1D1078&vid=F3583C8E78166B9E&iid=CA4FD0336C81A37A&sid=771469D9D58C34FF&eid=6209D9E8050195F5&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=80&reference_num=13