| 乙二醇还原生产硬质合金用钴粉 |
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| 引用本文： | 杨声海,潘泽强,张保平,唐谟堂. 乙二醇还原生产硬质合金用钴粉[J]. 矿冶工程, 2002, 22(4): 61-63 |
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| 作者姓名： | 杨声海 潘泽强 张保平 唐谟堂 |
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| 作者单位： | 1.中南大学冶金科学与工程学院, 湖南长沙410083;2.株洲硬质合金厂, 湖南株洲412000 |
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| 摘 要： | 以自制Co(OH)2 为原料, 乙二醇为溶剂和还原剂, 制得了分散性很好的球形超细钴粉。研究了单位体积乙二醇中Co(OH)2加入量对钴粉的粒径和形貌的影响。用SEM 、XRD、BET 和激光粒度分析仪测试粉体的粒子形貌、晶体结构、比表面积和粒度分布。测试结果表明多元醇还原的钴粉为球形, 晶体结构以面心立方为主, 还有微量的简单六方;当Co(OH)2 加入量为60 g/ L 时制得的钴粉粒度分布较窄, 平均粒径为0.88 μm, 比表面积为3.46 m2/ g, 钴含量>99.5%。
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| 关 键 词： | 钴粉 乙二醇 醇还原 硬质合金 |
| 收稿时间： | 2002-07-08 |
| 修稿时间： | 2002-07-08 |
Preparation of Cobalt Powder for Cemented Carbides by Glycol Reduction |
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| YANG Sheng-hai ,PAN Ze-qiang ,ZHANG Bao-ping ,TANG Mo-tang. Preparation of Cobalt Powder for Cemented Carbides by Glycol Reduction[J]. Mining and Metallurgical Engineering, 2002, 22(4): 61-63 |
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| Authors: | YANG Sheng-hai PAN Ze-qiang ZHANG Bao-ping TANG Mo-tang |
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| Affiliation: | 1.School of Metallurgical Science and Engineering, Central South University, Changsha 410083, Hunan, China;2.Zhuzhou Cemented Carbide Works, Zhuzhou 412000, Hunan, China |
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| Abstract: | The spherical, monodispersed, ultrafine cobalt powder has been fabricated by reducing cobalt hydroxide with glycol.The effect of cobalt hydroxide dosage on the morphology and particle size was investigated.The particles were characterized by the X-ray diffraction(XRD), scanning electron microscope(SEM), laser diffraction particle size analyzer and BET specific surface analysis.The XRD shows that the cobalt powder exists mostly in face centered cubic (fcc)structure, a little in simple hexagonal.While the adding of Co(OH)2 is 60 g/L, the cobalt powder' s average particle size, specific surface area,chemical content of cobalt powder were 0.88 μm, 3.46 m2/g and more than 99.5 % respectively. |
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| Keywords: | cobalt powder glycol reducing cemented carbides |
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