本文研究了分散剂、粘结剂及固相含量等流变学因素对喷雾造粒粉体流动性的影响.结果表明,Al2O3/3wt.%nano-TiO2浆料具有剪切变稀的特性,有利于复合陶瓷粉体的喷雾造粒.当固相含量为浆料总质量的60%,分散剂和粘结剂分别为固相质量的0.3%和1.0%时,浆料具有合适的粘度和最佳的分散稳定性,喷雾造粒所得到的粉体形状为球形或近球形,具有较高的松装密度和良好的流动性,满足用于热喷涂的需要.
参考文献
| [1] | E. H. Jordan;M. Gell;Y. H. Sohn;D. Goberman;L. Shaw;S. Jiang;M. Wang;T. D. Xiao;Y. Wang;P. Strutt .Fabrication and evaluation of plasma sprayed nanostructured alumina-titania coatings with superior properties[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1):80-89. |
| [2] | Jianghong He;Julie M;Schoemung .A review on nanostructrured WC-Co coatings[J].Surface and Coatings Technology,2002,157:72-79. |
| [3] | Maurice Gell .Application opportunities for nanostructructured materials and coatings[J].Materials Science and Engineering A,1995,204:246-251. |
| [4] | Shmuel Eideiman;Xiaolong Yang .Three Dimensional simulation of HVOF spray deposition of nanoscale materials[J].Nano-Structured Materials,1997,9:79-84. |
| [5] | Lima RS.;Berndt CC.;Kucuk A. .Evaluation of microhardness and elastic modulus of thermally sprayed nanostructured zirconia coatings[J].Surface & Coatings Technology,2001(2/3):166-172. |
| [6] | D. Goberman;Y.H. Sohn;L. Shaw .Microstructure development of A1_2O_3-13wt. percent TiO_2 plasma sprayed coatings derived from nanocrystalline powders[J].Acta materialia,2002(5):1141-1152. |
| [7] | JIANG Xian-liang;Liu Min.D.C .Plasma-sprayed coatings of nanostrutured alumina-titania-silica[J].Plasma Science and Technology,2002,4:1481-1484. |
| [8] | 陈煌,林新华,曾毅,丁传贤.热喷涂纳米陶瓷涂层研究进展[J].硅酸盐学报,2002(02):235-239. |
| [9] | H.Liang;K.Shinohara;H.Minoshima;K.Matsushima .Analysis of constant rate period of spray drying of slurry[J].Chemical Engineering Science,2001(6):2205-2213. |
| [10] | W R Cannon;R.Becker;K.R.Mikeska.Interations among organic additives used for tape casting[A].American Ceramic Society Westerville,Ohio,1989:525-541. |
| [11] | 陈宗祺;戴闽光.胶体化学[M].北京:高等教育出版社,1984:50-68. |
| [12] | 杨金龙,谢志鹏,汤强,黄勇.α-Al2O3悬浮体的流变性及凝胶注模成型工艺的研究[J].硅酸盐学报,1998(01):41-46. |
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%