采用气相爆轰方法制备出金红石和锐钛矿相混合晶型的纳米二氧化钛粉末,并用X射线衍射(XRD)、透射电镜(TEM)等表征手法,研究了环境温度变化对其晶粒尺寸和晶相结构的影响.结果表明,随着环境温度的升高,所生成的二氧化钛颗粒的尺度变大,产物中金红石相含量增加,锐钛矿相含量减少.通过测定爆轰压力的变化,得出了反应发生爆燃转爆轰的过程中.
参考文献
| [1] | Bonhote P et al.[J].Thin Solid Films,1999,350:260. |
| [2] | Diebold U .[J].Surface Science Reports,2003,48:53. |
| [3] | Gopal M.;Dejonghe LC.;Chan WJM. .ROOM TEMPERATURE SYNTHESIS OF CRYSTALLINE METAL OXIDES[J].Journal of Materials Science,1997(22):6001-6008. |
| [4] | Bokhimi X;Pedraza F .Characterization of brookite and a new corundum-like titania phase synthesized under hydrothermal conditions[J].International Journal of Quantum Chemistry,2004(7):2456-2463. |
| [5] | Pacheco F et al.[J].Applied Physics A:Materials Science and Processing,2004,78:531. |
| [6] | Ahonen PP.;Kauppinen EI.;Joubert JC.;Deschanvres JL.;Tapper U. .Aerosol synthesis of Ti-O powders via in-droplet hydrolysis of titanium alkoxide[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1/2):113-121. |
| [7] | 李晓杰,陈涛,李瑞勇,王占垒,曲艳东.爆轰法制备二氧化钛微粉及表征[J].稀有金属材料与工程,2006(11):1788-1791. |
| [8] | 施利毅,李春忠,朱以华.TiCl4高温气相氧化合成纳米二氧化钛颗粒的研究Ⅰ.颗粒粒度控制[J].功能材料,2000(06):622. |
| [9] | Spurr RA;Myers H .[J].Journal of Analytical Chemistry,1957,29:760. |
| [10] | Schulz H;Madler L;Strobel R;Jossen R;Pratsinis SE;Johannessen T .Independent control of metal cluster and ceramic particle characteristics during one-step synthesis of Pt/TiO2[J].Journal of Materials Research,2005(9):2568-2577. |
| [11] | 赵衡阳.气体和粉尘爆炸原理[M].北京:北京理工大学出版社,1996:13. |
| [12] | 胡彦杰,李春忠,顾锋,姜海波,赵尹.多重射流燃烧反应制备的TiO2/SiO2纳米复合颗粒的形态和结构[J].无机化学学报,2006(12):2253-2257. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%