| 分级钨粉提高钡钨阴极发射性能的研究 |
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| 引用本文： | 李汉广,饶翡珍,赵秦生.分级钨粉提高钡钨阴极发射性能的研究[J].中南大学学报(自然科学版),1990(1). |
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| 作者姓名： | 李汉广 饶翡珍 赵秦生 |
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| 作者单位： | 中南矿冶学院材料科学与工程系，中南矿冶学院化学系，中南矿冶学院有色冶金系 |
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| 摘 要： | 提出采用流态化技术分级的新方法分级制备钡钨阴极用原料钨粉。该法能减少或避免粉末的假颗粒化和分级设备的壁效应现象,有效地制备在粒度组成上符合钡钨阴极特殊要求的钨粉。试验结果表明,用分级钨粉制备的钡钨阴极发射性能有了明显的提高和改善,从而显示出这种方法的巨大潜力。
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| 关 键 词： | 钡钨阴极 钨粉 分级 |
INVESTIGATIOL ON CLASSIFICATION OF TUNGSTEN POWDER FOR IMPR0VING EMISSION PROPERTY OF BARIATED TUNGSTEN CATHODE |
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| Li Hanguang,Rao Feizhen,Zhao Qinsheng.INVESTIGATIOL ON CLASSIFICATION OF TUNGSTEN POWDER FOR IMPR0VING EMISSION PROPERTY OF BARIATED TUNGSTEN CATHODE[J].Journal of Central South University:Science and Technology,1990(1). |
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| Authors: | Li Hanguang Rao Feizhen Zhao Qinsheng |
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| Institution: | Li Hanguang;Rao Feizhen;Zhao Qinsheng Department of Materials Science Department of Chemistry Department of Nonferrous Metallurgy |
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| Abstract: | A classification method using fluidized technique was adapted for thepreparation of tungsten powder for bariated tungsten cathodes (BTC) in electro-nics industry. Simplicity, economy, practicability and a strong likelihood tobe applied in commercial production are features of this method. In addition, itcan reduce or avoid the agglomeration of tungsten powder and wall effect, thusproducing a tungsten powder with a desirable particle size distribution for BTC.The experiment showed that the emissivity of BTC was distinctly improved. Thismethod also has great potentialities for classificafion of other powders. |
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| Keywords: | Bariated tungsten cathode tungsten powder classification |
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