采用射频等离子体球化颗粒形状不规则的二氧化硅粉体,研究了加料速率、颗粒大小等因素对球化率的影响.用光学显微镜观察球化前后颗粒的形貌;用流动仪测定球化后粉体的松装密度.结果显示,球化后的二氧化硅颗粒球形度高,细颗粒长大,并且随着球化率的增大粉体松装密度增加.初步查明加料速率、原料粒度等参数对球化率的影响.在适当的条件下可以得到球化率高、球形度好的粉体.
参考文献
| [1] | 张军,宋守志,盖国胜.高纯超细电子级球形石英粉研究[J].电子元件与材料,2004(01):48-51. |
| [2] | 余志伟 .硅微粉增韧环氧树脂的研究[J].华东地质学院学报,1998,21(02):137-142. |
| [3] | X. S. Xing;R. K. Y. Li .Wear behavior of epoxy matrix composites filled with uniform sized sub-micron spherical silica particles[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2004(1/2):21-26. |
| [4] | Chen SL. .Preparation of monosize silica spheres and their crystalline stack[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,1998(1):59-63. |
| [5] | Cedric du Fresne von Hohenesche;Klaus K.Unger;Thomas Eberle .Agglomerated non-porous silica nanoparticles as model carriers in polyethylene synthesis[J].Journal of molecular catalysis, A. Chemical,2004(1/2):185-199. |
| [6] | 梁小平,杨正方,赵世海,袁启明.磨粒对ADZ复合陶瓷材料磨损性能的影响[J].润滑与密封,2004(03):18-19,22. |
| [7] | 赵丽,余家国,程蓓,赵修建.单分散二氧化硅球形颗粒的制备与形成机理[J].化学学报,2003(04):562-566. |
| [8] | STOBER W;FINK A;BOHN E .Controlled growth of monodisperse silica spheres in the micron size range[J].Journal of Colloid and Interface Science,1968,26(01):62-69. |
| [9] | KARMAKAR B;DE G;KUNDU D et al.Silica microspheres from the system tetraethyl orthosilicate-acetic acid-water[J].Journal of Non-Crystalline Solids,1991,135(01):29-36. |
| [10] | IZUTSU H;MIZUKAMI F;NAIR P K et al.Preparation and characterization of porous silica spheres by the sol-gel method in the presence of tartaric acid[J].Journal of Materials Chemistry,1997,7(05):767-772. |
| [11] | KAWAGUCHI T;ONO K .Spherical silica gels precipitated from acid catalyzed TEOS solutions[J].Journal of Non-Crystalline Solids,1990,121(1-3):383-388. |
| [12] | LECLOUX A J;BRONCKART J;NOVILLE F et al.Study of the texture of monodisperse silica sphere samples in the nanometer size range[J].Colloids and Surfaces,1986,19(04):359-374. |
| [13] | Karmakar B.;Ganguli D.;De GT. .Dense silica microspheres from organic and inorganic acid hydrolysis of TEOS[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2000(2/3):119-126. |
| [14] | Wells JD.;de Keizer A.;Koopal LK. .Monodisperse, nonporous, spherical silica particles[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2000(1/3):171-176. |
| [15] | DURNEY T E;MEOLY T P .Particle shape effects due to crushing method and size[J].International Journal of Mineral Processing,1986,16(1-2):109-123. |
| [16] | 李化建,黄佳木,盖国胜,梁保卫.高纯超细球形化硅微粉的研究[J].化工矿物与加工,2002(09):17-18,20. |
| [17] | Boulos M.I. .Thermal plasma processing[J].IEEE Transactions on Plasma Science,1991(6):1078-1089. |
| [18] | BOULOS M I .Heating of powders in the fire ball of an induction plasma[J].IEEE Transactions on Plasma Science,1978,6(02):93-106. |
| [19] | DIGNARD N M;BOULOS M I.Powder spheroidization using induction plasma technology[A].OH:Materials Park,2000:887-893. |
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%