| SiC/纳米TiN水基复合料浆特性及喷雾干燥 |
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| 引用本文： | 郭兴忠,李海淼,朱潇怡,杨辉,傅培鑫,高黎华.SiC/纳米TiN水基复合料浆特性及喷雾干燥[J].无机材料学报,2008,23(6):1211-1215. |
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| 作者姓名： | 郭兴忠 李海淼 朱潇怡 杨辉 傅培鑫 高黎华 |
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| 作者单位： | 1. 浙江大学材料科学与工程系,杭州,310027
2. 浙江东新密封有限公司,乐清,325604 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金，浙江省科技攻关项目 |
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| 摘 要： | 以四甲基氢氧化铵(TMAH)为分散剂,纳米TiN、亚微米SiC粉体为原料,分别制备单组分水基料浆及复合料浆,分析了SiC/纳米TiN复合料浆的分散稳定机制以及喷雾干燥行为.研究结果表明,TMAH在纳米TiN、SiC颗粒表面形成特征吸附,通过静电作用和空间位阻协同作用提高颗粒的分散性;当pH=8、TMAH加入量为0.75wt%时,复合浆料分散稳定,喷雾干燥制备的SiC/纳米TiN复合粉体流动性好,且分布均匀.
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| 关 键 词： | 纳米TiN 水基料浆 复合粉体 喷雾干燥 |
| 收稿时间： | 2007-12-10 |
| 修稿时间： | 2008-2-22 |
Characteristics of SiC/nano-TiN Aqueous Mixed Slurry and Its Spray Drying Behavior |
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| GUO Xing-Zhong,LI Hai-Miao,ZHU Xiao-Yi,YANG Hui,FU Pei-Xin,GAO Li-Hua.Characteristics of SiC/nano-TiN Aqueous Mixed Slurry and Its Spray Drying Behavior[J].Journal of Inorganic Materials,2008,23(6):1211-1215. |
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| Authors: | GUO Xing-Zhong LI Hai-Miao ZHU Xiao-Yi YANG Hui FU Pei-Xin GAO Li-Hua |
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| Affiliation: | 1.DepartmentofMaterialsScienceandEngineering,ZhejiangUniversity,Hangzhou310027,China;2.ZhejiangDongxinSealsLimitedCompany,Yueqing325604,China |
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| Abstract: | The aqueous slurries were prepared usingtetramethyl ammonium hydroxide (TMAH) as dispersant, nano-TiN and submicron SiC powders as starting materials. The dispersion, stabilization mechanism and spray drying behaviors of SiC/nano-TiN aqueous mixed slurry were analyzed. The results show that TMAH can be absorbed on the surface of nano-TiN and SiC particles, and the dispersibility of particles is cooperatively improved by electrostatic and steric effects. The mixed slurry possesses better dispersion and stabilization when pH value is 8 and the amount of TMAH is 0.75wt%, and the SiC/nano-TiN composite powders prepared by spray drying distribute uniformly with good fluidity. |
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| Keywords: | SiC TMAH |
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