| 用粉碎法制备SiC板晶 |
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| 引用本文： | 卢迪芬,陈楷.用粉碎法制备SiC板晶[J].华南理工大学学报(自然科学版),1996(3). |
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| 作者姓名： | 卢迪芬 陈楷 |
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| 作者单位： | 华南理工大学无机材料科学与工程系 |
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| 摘 要： | 通过对ＳｉＣ的细磨、超细分级与按形状分离的方法，探讨了用粉碎法制备ＳｉＣ板晶的可行性。本实验采用了行星磨、振动磨、球磨、瓷瓶磨等四种不同的粉磨设备，在不同的实验条件下粉磨工业ＳｉＣ原块至平均粒径为１．５μｍ。通过对粉磨产品的粒度分布、平均粒径的测定，和ＳＥＭ、ＴＥＭ电镜观测，发现粉磨产品的形貌及板晶的含量与磨机种类、作用方式及操作条件有关。利用不同粒径颗粒在介质中沉降速度的差异，把ＳｉＣ粉末分成若干个粒级，找出不同粒级与板晶含量的关系，并对同一粒级的颗粒再进行按形状分离，使板状晶体含量达到３０％以上。
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| 关 键 词： | SiC板晶 粉碎法 重力沉降法 颗粒分级 按形状分离 |
PREPARATION OF SiC PLATELET BY USING COMMINUTING METHOD |
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| Lu Difen, Chen Kai.PREPARATION OF SiC PLATELET BY USING COMMINUTING METHOD[J].Journal of South China University of Technology(Natural Science Edition),1996(3). |
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| Authors: | Lu Difen Chen Kai |
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| Abstract: | The preparation of SiC platelet by means of mechanical grinding, classification and separation in accordance with shape were discussed in this paper in order for using mechanical method in stead of chemical vapor deposition to prepare SiC platelet. The industrial SiC was pulverized with different kinds of grinding mill under different experimental conditions so as to find the optimum conditions under which a large amount of SiC platelet could be obtained.In order to obtain more platelets it was suitable to apply moderate attrition force for grinding,and the sedimentation method was used to separate platelets from nonplatelets. |
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| Keywords: | s: SiC platelet comminuting method gravitational sedimentation particulate classification shape separation |
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