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Si_3N_4粉末表面的非均质成核法包覆及其浆料流变性的研究

Release time:2021-03-15 Hits:

Key Words:氮化硅;;表面包覆改性;;非均质成核;;流变性能
 Abstract: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．
 Issue:05
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