| 液-液掺杂钼镧合金中的稀土相研究 |
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| 引用本文： | 王 攀,杨涤心,魏世忠,李继文,徐流杰.液-液掺杂钼镧合金中的稀土相研究[J].稀有金属材料与工程,2010,39(12):2185-2188. |
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| 作者姓名： | 王 攀 杨涤心 魏世忠 李继文 徐流杰 |
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| 作者单位： | 1. 河南科技大学,河南洛阳,471003
2. 河南科技大学,河南洛阳471003;河南省耐磨材料工程技术研究中心,河南洛阳471003 |
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| 基金项目： | 河南省重点科技攻关项目(092102213111) |
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| 摘 要： | 采用液-液掺杂方式及溶胶-凝胶技术制备出稀土镧掺杂钼粉，经等静压、烧结制成掺镧钼坯。利用XRD、SEM、EDS、TEM等检测手段对不同加工态下材料的组织、形貌及稀土相进行了分析。结果表明：硝酸镧La(NO3)3溶液与仲钼酸铵(NH4)6Mo7O24·4H2O溶液发生化学反应生成钼酸镧La2(MoO4)3，经焙解和还原，稀土相以La2O3的形式存在于Mo粉中，并起到细化钼颗粒的作用；烧结成坯后，La2O3弥散分布在钼基体中
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| 关 键 词： | 液-液掺杂 溶胶-凝胶 氧化镧 弥散 |
| 收稿时间： | 2009/12/19 0:00:00 |
Study on RE Phase of Mo-La Alloy Prepared by a Liquid-Liquid Doping Method |
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| Wang Pan,Yang Dixin,Wei Shizhong,Li Jiwen and Xu Liujie.Study on RE Phase of Mo-La Alloy Prepared by a Liquid-Liquid Doping Method[J].Rare Metal Materials and Engineering,2010,39(12):2185-2188. |
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| Authors: | Wang Pan Yang Dixin Wei Shizhong Li Jiwen and Xu Liujie |
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| Affiliation: | He'nan University of Science & Technology, Luoyang 471003, China |
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| Abstract: | Lanthanum-doped molybdenum powder was prepared by a liquid-liquid doping method and sol-gel technique, and then the lanthanum-doped molybdenum billet was obtained by isostatic pressing and sintering. The microstructure, morphology and RE phases of the materials in different states were analyzed using XRD, SEM, EDS, TEM etc. The results show that a chemical reaction between La(NO3)3 and (NH4)6Mo7O24·4H2O generates La2(MoO4)3. After calcination and reduction, RE phase exists in the molybdenum powder in the form of La2O3 and can refine the powder particles. La2O3 distribute dispersively in the molybdenum matrix after sintering into a billet |
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| Keywords: | liquid-liquid doping sol-gel lanthanum oxide dispersion |
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