无机材料学报

• 研究论文 • 上一篇    下一篇

纳米TiO2的光学特性及烧结行为

王浚; 高濂; 宋哲   

  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
  • 收稿日期:1998-03-23 修回日期:1998-04-22 出版日期:1999-02-20 网络出版日期:1999-02-20

Optical Properties and Sintering Behavour of Nano-TiO2 Powder

WANG Jun; GAO Lian; SONG Zhe   

  1. State Key Lab of High Performance Ceramics & Superfine Microstructure; Shanghai institute ofCeramics Shanghai 200050 China
  • Received:1998-03-23 Revised:1998-04-22 Published:1999-02-20 Online:1999-02-20

摘要: 采用钛酸丁酯[Ti(OC4H94]水解法制备了纳米TiO2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TiO2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TiO2块体.

关键词: 纳米TiO2, 反射谱, 系限, 烧结

Abstract: 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.

Key words: nano-titania, reflect spectrum, series limit, hot-pressure sintering

中图分类号: