采用新的动态光散射及激光衍射等技术对较高浓度悬浮液中亚微米氧化铈颗粒的粒度分布进行了测量,分析了分散前处理对动态光散射测量结果的影响,计算了动态光散射测量时不同分布基础的粒度分布结果,并以透射电镜观测结果进行了验证.结果表明,激光衍射测得的粒度分布结果数值较大,其基于体积分布的粒度中位值约为2 μm；动态光散射测量的粒度分布数值较小,基于体积、数量分布的粒度中位值分别为257.0 nm和157.1nm,分散前处理对粒度测量结果有一定的影响；动态光散射测量的基于数量分布的氧化铈颗粒的粒度分布结果与透射电镜观测所得的数值能够较好地吻合.新的动态光散射技术可准确地测量经过充分分散的较高浓度悬浮液中亚微米氧化铈颗粒的粒度分布.
参考文献
| [1] | Gilliss SR;Bentley J;Carter CB .Electron energy-loss spectroscopic study of the surface of ceria abrasives[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2005(1/2):61-67. |
| [2] | 杨国胜,谢兵,任慧平,李学舜,黄绍东.无氟铈基稀土抛光粉制备过程的研究[J].稀土,2008(02):45-49. |
| [3] | 柳召刚,李梅,史振学,胡艳宏,王觅堂,吴锦绣.碳酸盐沉淀法制备超细氧化铈的研究[J].稀土,2010(06):27-31. |
| [4] | A. S. Karakoti;S. Seal .Colloidal Stability by Surface Modification[J].JOM,2005(12):52-56. |
| [5] | 李洁,李培忠,许涛,周晓东.激光散射（衍射）法测定稀土氧化物粒度的条件优化[J].稀土,2010(01):73-76. |
| [6] | Keck CM;Muller RH .Size analysis of submicron particles by laser diffractometry--90% of the published measurements are false.[J].International Journal of Pharmaceutics,2008(1/2):150-163. |
| [7] | Mallorie Tourbin;Christine Frances .A Survey of Complementary Methods for the Characterization of Dense Colloidal Silica[J].Particle & Particle Systems Characterization: Measurement and Description of Particle Properties and Behavior in Powders and Other Disperse Systems,2007(6):411-423. |
| [8] | Chuen-Shii Chou;Cheng-Yang Ho;Che-I Huang .The optimum conditions for comminution of magnetic particles driven by a rotating magnetic field using the Taguchi method[J].Advanced Powder Technology: The internation Journal of the Society of Powder Technology, Japan,2009(1):55-61. |
| [9] | Marta I.L.L. Oliveira;Kexin Chen;Jose M.F. Ferreira .Influence of powder pre-treatments on dispersion ability of aqueous silicon nitride-based suspensions[J].Journal of the European Ceramic Society,2001(13):2413-2421. |
| [10] | John Gregory.Monitoring particle aggregation processes[J].Advances in colloid and interface science,2009:109-123. |
| [11] | Ghosh, S.;Divya, D.;Remani, K.C.;Sreeremya, T.S. .Growth of monodisperse nanocrystals of cerium oxide during synthesis and annealing[J].Journal of nanoparticle research: An interdisciplinary forum for nanoscale science and technology,2010(5):1905-1911. |
| [12] | A.I.Y. Tok;F.Y.C. Boey;Z. Dong .Hydrothermal synthesis of CeO_2 nano-particles[J].Journal of Materials Processing Technology,2007(1/3):217-222. |
| [13] | Verena Goertz;Nico Dingenouts;Hermann Nirschl .Comparison of Nanometric Particle Size Distributions as Determined by SAXS,TEM and Analytical Ultracentrifuge[J].Particle & Particle Systems Characterization: Measurement and Description of Particle Properties and Behavior in Powders and Other Disperse Systems,2009(1/2):17-24. |
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%