| Si3N4粉末表面的非均质成核法包覆及其浆料流变性的研究 |
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| 引用本文： | 李镇江,药佩珍,张灿英,侯耀永.Si3N4粉末表面的非均质成核法包覆及其浆料流变性的研究[J].硅酸盐学报,1999,27(5):562-568. |
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| 作者姓名： | 李镇江 药佩珍 张灿英 侯耀永 |
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| 作者单位： | 1. 西北工业大学401教研室
2. 青岛化工学院高技术陶瓷研究室 |
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| 基金项目： | 国家自然科学基金，化学工业科技研究基金 |
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| 摘 要： | 在研究Ｓｉ３Ｎ４粉末表面包覆工艺及各因素影响规律的基础上，确定了非均质成核法对Ｓｉ３Ｎ４粉末表面包覆改性的最佳工艺范围。利用透射电镜，Ｘ射线粒度分布仪，粘度测定仪、ｚｅｔａ电位测定仪对包覆前后Ｓｉ３Ｎ４浆料进行了分析。结果表明：在最佳包覆工艺范围内，Ｓｉ３Ｎ４粉末表面均匀包覆一层Ａｌ（ＯＨ）３，并包覆后Ｓｉ３Ｎ４浆料的ｚｅｔａ电位发生明显变化，粒度分布更加均匀，流变性能得到明显改善。
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| 关 键 词： | 氮化硅 表面包覆改性 非均质成核 流变性能 |
SURFACE COATING WITH HETEROGENEOUS NUCLEATION OF Si3N4 POWDER AND ITS RHEOLOGICAL PROPERTY |
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| Li Zhenjiang,Yao Peizhen,Zhang Canying,Hou Yaoyong.SURFACE COATING WITH HETEROGENEOUS NUCLEATION OF Si3N4 POWDER AND ITS RHEOLOGICAL PROPERTY[J].Journal of The Chinese Ceramic Society,1999,27(5):562-568. |
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| Authors: | Li Zhenjiang Yao Peizhen Zhang Canying Hou Yaoyong |
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| Abstract: | Each factor affecting Si 3N 4 surface coating for performance modification was investigated. On the basis of the effecting law of each factor, the optimum condition of Si 3N 4 surface coated by the heterogeneous nucleation was determined. Slurry of Si 3N 4 with and without coating was analyzed by TEM, X -ray powder, size distribution apparatus, viscometer, zeta potential apparatus. It is shown that, in the optimum condition range, the surface of Si 3N 4 coated uniformly by Al(OH) 3 and zeta potential in the coated Si 3N 4 slurry change obviously and size distribution is more uniformly, rheological property is much improved. |
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| Keywords: | silicon nitride coated surface modification heterogeneous nucleus rheological property |
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