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1.
本文较详细地全面地论述了玻璃工业对稀土的广泛应用,不同的童量稀土所赋邓玻璃的不同性能,并不四川丰富的稀土资源,提出了应大力开发稀土在玻璃工业中的应用。  相似文献   

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介绍了美国稀土工业发展的主要状况。内容包括美国稀土资源、稀土原料及冶炼产品生产、稀土应用领域、稀土贸易与市场以及对美国稀土工业发展前景的评价。  相似文献   

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加强我国稀土工业的宏观控制作用□北京有色冶金设计研究总院林河成□80年代以来,在国家的改革开放大政方针指引下,在国家高度重视和支持下,我国的稀土工业获得了高速度的发展,并取得了巨大的成就。目前,我国的稀土地质勘探、开采、选矿、冶炼、材料加工和应用等方...  相似文献   

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林河成 《有色矿冶》1998,14(5):58-62,68
本文介绍了我国台湾省的稀土工业发展主要状况。内容包括稀土资源,稀土原料和产品的生产,稀土产品的应用开拓及发展领域;稀土产品的进出口贸易及市场态势;今后稀土工业的发展前景,并对有关问题作出评价。  相似文献   

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江西省科学技术委员会组织省冶金总公司、地矿厅等单位的同志赴包头、天津、北京等地考察了北方稀土的分离、冶炼及稀土应用材料的开发、推广情况,从中得到不少启示,对江西省稀土产业的发展有不少借鉴之处。1稀土行业的发展动态包头作为中国稀土最早被开发利用的代表地...  相似文献   

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本文介绍了稀土在轻纺工业中的应用情况,它的应用具有节约染料、助剂,并可改善废水危害等好处,是染色行业技术发展的方向之一。  相似文献   

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戴兰芳  王绍斌  唐中杰 《稀土》2005,26(3):79-82
介绍了用粉末技术合成金刚石的一种新方法,试验研究中采用加入少量稀土的NiFe合金粉末作为原料,在超高压、高温的条件下,经一定的工艺流程合成了高品级金刚石。该方法的显著特点是提高金刚石的粗粒度百分比,金刚石样品质量高,颜色黄。  相似文献   

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稀土在铁基粉末冶金材料中的作用综述   总被引:4,自引:0,他引:4  
张弘  宋子濂 《稀土》2004,25(4):63-64
介绍了稀土在铁基粉末冶金材料中的作用机理,总结了到目前为止在这一领域的相关结论和研究进展。  相似文献   

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稀土在钢铁焊接材料中的应用   总被引:5,自引:0,他引:5  
本文参阅了近年来发表的大量文献,对稀土在焊接材料中的应用及其作用机理作了综述与评价。  相似文献   

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王文  林美娟  章文贡 《稀有金属》2004,28(5):825-828
选择了几种功能不同的Pr,Eu,Gd,Th,Dy,Ho和Er的三异丙氧基化合物与苯乙烯本体聚合获得稀土掺杂聚苯乙烯,采用ESEM,DMTA,冲击强度测试研究了不同稀土对聚合物力学性能的影响,结果表明不同稀土引入聚苯乙烯中均能使韧性得以提高,它们的力学性能与稀土的原子序数、原子半径大小有关。  相似文献   

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周谨 《稀土》2012,33(3):86-89
全面分析稀土复合混凝剂混凝机理,重点研究稀土复合混凝剂应用现状,并且对稀土复合混凝剂目前问题、发展方向进行探讨。  相似文献   

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Rare earth compounds as modifiers used widely in modern friction materials can enhance the interracial binding of constituents of materials and improve the comprehensive properties of materials evidently. However, there are still few reports on application of rare earth in automotive friction materials. In order to study the effect mechanism of rare earths in friction materials, a rare earth compound was selected as additive and the effects of materials doped with or without rare earth on friction and wear properties of materials were studied. The microstructure and worn surface morphology were observed by scanning electron microscopy and the macro performance was discussed. Worn surface element constitution of materials was analyzed by energy dispersive spectroscopy. Effect mechanism of rare earths on friction and wear behaviors of friction materials were discussed. The results show that doping rare earths in friction materials can stabilize friction Coefficient, lower the wear rate of materials and increase the impact strength of materials. The flexibility and fracture resistance of materials is greatly improved. Worn surface of materials doped with rare earth is compact and the surface adhesion is greatly enhanced.  相似文献   

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加混合稀土WC—8Co合金的组织和性能   总被引:4,自引:0,他引:4  
探讨了添加超细混合稀土氧化物微粉对WC-8Co硬质合金组织结构和性能的优化机理.结果表明,混合稀土氧化物提高WC-8CO合金强韧性的原因,不仅是由于WC晶粒尺寸的细化、不连续长大的粗晶WC的消除和立方钻相含量的提高,还与合金制品宏观应力的增加有关。  相似文献   

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Examination of Plasma Nitriding Microstructure with Addition of Rare Earths   总被引:2,自引:0,他引:2  
Medium-carbon alloy steel was plasma nitrided with rare earths I_a, Ce and Nd into the nitriding chamber respectively. The nitriding layer microstructures with and without rare earths were compared using optical microscope, normal SEM and high resolution SEM, as well as TEM. It was found that the extent of the influence on plasma nitriding varies with different contents of rare earth. The effect of plasma nitriding is benefit from adding of Ce or Nd. The formation of hard and brittle phase Fe2-3N can be prevented and the butterfly-like structure can be improved by adding Ce or Nd. However, pure La may prevent the diffusion of nitrogen and the formation of iron nitride, and reduce the depth of diffusion layer.  相似文献   

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Effect of Rare Earths on Properties of BNbRE Rail Steel   总被引:1,自引:0,他引:1  
The development and properties of BNbRE rail steel and the effect of RE on rail steel were studied. The results show that the properties of rail steel (δb ≥980 MPa, δ5≥ 8 % ) can be improved by adding RE and niobium and adjusting the content of C, Si and Mn in steel. At the same time, the abrasion resistance, contact fatigue and fatigue property of BNbRE rail steel are excellent. It also shows that RE in rail steel has the functions of purifying steel, modifying inclusion and micro-alloy action effect. The improved steel-making process enhances the quality of molten steel. Although the content of RE is low, excellent properties of BNbRE rail steel are achieved.  相似文献   

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介绍了稀土三基色粉的性能特点及其在新型节能日光灯上的应用。  相似文献   

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