纳米TiO_2的光学特性及烧结行为  

Optical Properties and Sintering Behavour of Nano-TiO_2 Powder

作　　者：王浚[1] 高濂[1] 宋哲 

机构地区：[1]中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室,上海200050

出　　处：《无机材料学报》1999年第1期171-174,共4页Journal of Inorganic Materials

摘　　要：采用钛酸丁酯［Ti（OC_4H_9）_4］水解法制备了纳米TiO_2粉体，通过制备过程工艺参数的控制，获得了不同粒径和形貌的粉料．光反射谱研究表明，纳米TiO_2的吸收线系限与粉体的粒径和相结构密切相关；在30MPa和850℃进行热压烧结，得到了相对密度为93．3％，颗粒大小为200um左右的TiO_2块体．Nano-titania was prepared by Ti(OC4Hg)4 hydrolysis precipition approach, its particle sizeand agglomeration can be controlled by adjusting some parameters of the process. Reflect spectrarevealed that the series limit of nano-titania was influenced by its particle size and crystal structureas well. Titania compact with a grain size about 200um and 93.3% relative density was obtainedvia hot-pressure sintering.

关 键 词：反射谱 烧结 二氧化钛陶瓷 纳米粉体 

分 类 号：TQ174.758[化学工程—陶瓷工业] TF123.25[化学工程—硅酸盐工业]