| 并流共沉淀法制备铜锡镧复合预合金粉末的研究 |
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| 引用本文： | 潘超,秦海青,吕智,王进保,程柳,张振军,陈光.并流共沉淀法制备铜锡镧复合预合金粉末的研究[J].珠宝科技,2010(2):35-39. |
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| 作者姓名： | 潘超 秦海青 吕智 王进保 程柳 张振军 陈光 |
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| 作者单位： | [1]桂林理工大学材料科学与工程学院,广西桂林541004 [2]国家特种矿物材料工程技术研究中心,广西桂林541004 [3]桂林矿产地质研究院,广西桂林541004 |
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| 基金项目： | 国家科技部专项资金资助（国科发财[2009]204号）; 广西科技开发计划应用基础研究专项（桂科基0991027）; 广西科技基础条件平台建设项目计划资助（08-05-01B）; 广西科技开发计划（桂科攻0992001-10）; 广西科学基金资助（桂科青0832089） |
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| 摘 要： | 文章研究了Cu^2＋,Sn^2＋,La^3＋,OH^-,C2O2^4-,Cl^-,H2O体系中金属离子的分布特点、变化规律及pH值对Cu-Sn-La共沉淀过程的影响。本次实验的目标是制备Cu84.5Sn15La0.5预合金粉末。通过ICP-AES法测定了Cu-Sn-La预合金粉末前驱体的沉淀率。在空气气氛中铜锡镧复合氢氧化物煅烧成铜锡镧复合金属氧化物;在氢气还原气氛中,铜锡镧复合金属氧化物被还原为Cu84.5Sn15La0.5预合金粉末。用X射线衍射仪（XRD）分析其物相组成,扫描电子显微镜（SEM）观察其形貌特征。结果表明,通过共沉淀反应前的设计,可以控制预合金粉末的成分。
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| 关 键 词： | 超硬材料 共沉淀反应 pH值 预合金粉末 |
Study on Cu-Sn-La pre-alloyed powder made by coprecipitation |
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| PAN Chao,QIN Hai-qing,LV Zhi,WANG Jin-bao,CHENG Liu,ZHANG Zhen-jun,CHEN Guang.Study on Cu-Sn-La pre-alloyed powder made by coprecipitation[J].Jewellery Science and Technology,2010(2):35-39. |
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| Authors: | PAN Chao QIN Hai-qing LV Zhi WANG Jin-bao CHENG Liu ZHANG Zhen-jun CHEN Guang |
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| Affiliation: | 1.Materials Science and Engineering College of Guilin University of Technology,Guilin,Guangxi 541004,China;2.National Special Mineral Materials Engineering Research Center,Guilin,Guangxi 541004,China;3.Guilin Research Institute of Geology for Mineral Resources,Guilin,Guangxi 541004,China) |
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| Abstract: | The rule of metal ions in distribution and variation in the system of Cu^2＋,Sn^2＋,La^3＋,OH^-,C2O2^-4,Cl^-,H2O,and the effects of pH value on the Cu-Sn-La coprecipitation process are studied.The objective of this experiment is to prepare Cu84.5Sn15La0.5 pre-alloyed powder.The sedimentation rate of precursor of Cu-La-Sn powder is determined by ICP-AES method.The Cu-Sn-La composite hydroxide can be calcined into Cu-Sn-La composite oxide in the air.In hydrogen atmosphere,Cu-Sn-La composite oxide is reduced into uniform Cu84.5Sn15La0.5 pre-alloyed powder.The phase composition was analyzed by X-ray diffraction（XRD） and the morphology was observed by scanning electronic microscope（SEM）.The result shows that the components can be controlled by process conditions. |
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| Keywords: | superhard materials coprecipitation pH value pre-alloyed powder |
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