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Separation of middle rare earths by solvent extraction using 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant Loris Pietrelli1,Danilo Fontana1 (1.ENEA, Italian National Agency for New Technologies, Energy and the Environment Via Anguillarese 301, 1-00123 Roma, Italy) Abstract:The extraction of the trivalent middle rare earths from chloride media by kerosene solutions......
Surface ζ potential and photocatalytic activity of rare earths doped TiO2 SONG Mianxin1,BIAN Liang1,ZHAO Xiaoyong1,ZHOU Tianliang2 (1.Key Laboratory For Advanced Building Materials of Sichuan Province,South West University of Science and Technology,Mianyang 621010,China;2.Baotou Research Institute of Rare Earths,Baotou 014010,China) Abstract:The iso-electric point of different rare earths (La......
a contrary trend. Proper amount of rare earth in the steels can improve the anisotropy of impact toughness above -20 ℃ and it does not affect the type of microstructures which are still composed of ferrites..., refined and dispersed, and thus improves the distribution of inclusions. Key words:metal materials; Nb-Ti-bearing steel; property; microstructure; inclusion; rare earths; [全文内容正在添加中] ......
adsorption, tem-perature-programmed desorption of ammonia (NH_3-TPD), and Fourier transform infrared spectroscopy (FT-IR) techniques. The results showed that with the addition of rare earths the BET...Physicochemical and isomerization property of Pt/SAPO-11 catalysts promoted by rare earths LIU Weiqiao1,SUN Yuhan2,SHANG Tongming1,REN Jie2,ZHOU Quanfa1 (1.School of Chemistry and Chemical......
Effect of Rare Earths on Mechanical Properties and Microstructures of Si3N4-based Ceramics YOU Xiang-qun1,LIU Da-wei2,LIU Bing-yu1,MU Bai-chun1,GU Zhi-gang1,LI Ming3 (1.Department of Material... properties can be obtained by adding rare earths oxides in Si3N4. The fracture toughness and the flexural strength of Si3N4 added with both Y2O3 and La2O3 are 7.8 MPa.m1/2 and 962 MPa, respectively......
Effects of Rare Earths on Properties and Microstructure of Automotive Friction Materials Bai Jing1,Lu Liguo1,Xu Yue1 (1.School of Materials Science & Engineering, Beijing University of Aeronautics... 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......
earth alloy in surfacing can fine its microstructure, improve hardness and impact toughness. Key words:metal materials; surfacing; precipitated carbide; rare earths alloy; [全文内容正在添加中] ...Study on Y-Base Rare Earth Alloy in Ultra-High Hardfacing 李午申1,王宝森1,冯灵芝1,张亚梅1 (1.School of Materials Science & Engineering, Tianjin University, Tianjin 300072, China) Abstract:The effect of Y-base......
Synthesis and Properties of Heteropoly Tungstovanadogermanic Complexes with Rare Earths 赵儒铭1,单永奎2,彭军3,周百斌2,马慧媛3 (1.Department of Chemistry, Wuhan University, Wuhan 430072, China;2.Department... by the acid-alkali titration indicates that the range of pH in which the heteropoly anions can exist stably is pH=3.3~7.6 at room temperature. Key words:rare earths; heteropoly anions; Keggin structure......
sulphides indicate that most sulphur is derived from the magmas. The ores are similar in rare earth element(REE) patterns to the granitic rocks. The granitic magma activity results in ore-bearing structures...J. Cent. South Univ. Technol. (2007)04-0568-07 DOI: 10.1007/s11771-007-0109-x Bainiuchang super-large silver-polymetallic ore deposit related to granitic magmatism in Mengzi, Yunnan LIU Ji-shun(刘继......
Effect of Rare Earths on Properties of BNbRE Rail Steel 王荣1,李春龙1,智建国1 (1.Baotou Iron & Steel (Group) Abstract:The development and properties of BNbRE rail steel and the effect of RE on rail steel... materials; rail steel; property; rare earths; [全文内容正在添加中] ......
