| TiB2/Al2O3复合粉体的喷雾干燥造粒与特性研究 |
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| 引用本文： | 唐文军,傅正义,张金咏,王玉成,王为民.TiB2/Al2O3复合粉体的喷雾干燥造粒与特性研究[J].陶瓷学报,2006,27(4):370-375. |
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| 作者姓名： | 唐文军 傅正义 张金咏 王玉成 王为民 |
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| 作者单位： | 武汉理工大学材料复合新技术国家重点实验室,430070 |
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| 基金项目： | 国家自然科学基金;教育部科学技术研究重点项目 |
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| 摘 要： | 利用喷雾干燥技术对TiB_2/Al_2O_3复合粉体进行造粒,研究了浆料固相含量及粘结剂含量对喷雾干燥粉体颗粒形貌、结构、松装密度、流动性等的影响。结果表明：当浆料固相含量为47．6%,分散剂和粘结剂分别为固相质量的0．4%和1．0%时,浆料具有合适的粘度和最佳的分散稳定性,喷雾造粒得到的粉体为球形或近球形,具有较高的松装密度和流动性,能满足各种压制成型的需要。
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| 关 键 词： | 喷雾干燥 复合粉体 |
| 文章编号： | 1000-2278(2006)04-0370-06 |
| 收稿时间： | 2006-04-16 |
| 修稿时间： | 2006年4月16日 |
STUDY ON SPRAY DRYING AND CHARACTERISTICS OF TiB2/Al2O3 COMPOSITE POWDERS |
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| Tang Wenjun,Fu Zhengyi,Zhang Jinyong,Wang Yucheng,Wang Weimin.STUDY ON SPRAY DRYING AND CHARACTERISTICS OF TiB2/Al2O3 COMPOSITE POWDERS[J].Journal of Ceramics,2006,27(4):370-375. |
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| Authors: | Tang Wenjun Fu Zhengyi Zhang Jinyong Wang Yucheng Wang Weimin |
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| Affiliation: | State Key Lab of Advanced Technology for Materials and Processing, Wuhan University of Technology, 430070 |
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| Abstract: | TiB_2/Al_2O_3 composite powders were prepared by spray drying.The effects of solid loading and binder content on the morphology,microstructure,loose packed density and flow rate of the spray dried granules were studied.When solid content is 47.6wt% of total mass,the dispersant and binder concentration are 0.4wt% and 1.0wt% of solid loading respectively,the slurry has suitable viscosity and good dispersant stability.The optimized slurry was spray-dried successfully to produce spherical granules with good spherical shape and uniform size distribution.The composite powders have good flow rate and high packing densities. |
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| Keywords: | TiB2 Al2O3 |
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