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words: rare earth oxide; Gd2O3; Yb2O3; thermal barrier coatings (TBCs); oxidation; impedance spectroscopy (IS) 1 Introduction Thermal barrier coating (TBC) is a surface thermal protection technology... conductivity and better sintering resistance[4-9]. Recently, rare earth (RE) oxide doped zirconia TBCs have attracted increasing attention because of their excellent capability in thermal barrier......
] Slooff L H, Van B A, Polman A, et al. Rare-earth doped polymers for planar optical amplifiers[J]. Journal of Applied Physics, 2002, 91(14): 3955-3980. [3] Krasilnik Z F, Andreev B A, Kryzhkov D I, et......
咏, 韦伟峰, 陈丽芳. 添加稀土元素对粉末冶金Ti合金显微组织和力学性能的影响[J]. 中国有色金属学报, 2004, 14(2): 244-249.TANG Hui-ping, LIU Yong, WEI Wei-feng, CHEN Li-fang. Effect of rare-earth element addition on microstructure and mechanical... titanium alloys by addition of rare earth element[J]. Journal of Materials Science and Technology, 2006, 22(4): 465-469. [14] 莫 畏. 钛[M]. 北京: 冶金工业出版社, 2008: 252-257.MO Wei. Titanium[M]. Beijing......
. [5] LI W, INLSON B, HORITA Z, XIA K. Microstructure observations in rare earth element Gd-modified Ti-44 at% Al[J]. Intermetallics, 2000, 8(5-6): 51-523. [6] AI Tao-tao. Microstructure and mechanical...): 1369-1372. [10] YU Zhi-qing, WU Gao-hui, JIANG Wen-tao. Effect of surface modification of sub-micron Al2O3 particles by rare-earth on interfacial wettability of Al matrix composites [J]. The Chinese......
[M]. Taylor & Fraccis Group, LLC, 2008: 147-153. [4] TANG Hui-min, LIU Yong, WEI Wei-feng, CHEN Li-fang. Effect of rare-earth element addition on microstructure and mechanical properties of P/M......
to the layered rare-earth oxypnictides REZnAsO (RE=Y, La-Nd, Sm, Gd, Er), are semiconductor compounds with band gap of 1.5-2.3 eV in experimental investigation [2, 5] or 0.65-1.3 eV in theoretical calculation...+. LINCKE et al [5] have synthesized well crystallized form REZnAsO (RE = Y, La) from the ingots of rare earth elements, arsenic, and ZnO in NaCl/KCl fluxes in sealed silica ampoules. The REZnAsO......
, and magnetic properties [1-6]. YZnAsO and LaZnAsO, which are isostructural to the layered rare-earth oxypnictides REZnAsO (RE=Y, La-Nd, Sm, Gd, Er), are semiconductor compounds with band gap about 1.5... Mn2+. LINCKE et al [5] have synthesized well crystallized form REZnAsO (RE=Y, La) from the ingots of rare earth elements, arsenic, and ZnO in NaCl/ KCl fluxes in sealed silica ampoules. The REZnAsO......
synthesis; lanthanum hexaboride; Mg3B2O6 1 Introduction Lanthanum hexaboride (LaB6) with divalent rare-earth cubic hexaborides [1] has high melting point (2 715 °C), high hardness, high chemical......
]. Small amounts of reactive elements (such as rare earth elements) can improve the oxidation resistance of chromia-forming alloys, usually called reactive element effect (REE). The beneficial effects of rare earth elements on Fe-Cr alloy in wet atmosphere have also been clearly proved [5-7]. The reactive elements can be introduced as alloying elements and oxide coatings, or they can be implanted onto......
removal from andalusite[J]. Metal Mine, 2001(3): 39-41. [7] Arvidson B R, Henderson D. Rare-earth magnetic separation equipment and applications developments[J]. Minerals Engineering, 1997, 10(2): 127-137. [8] CHANG Ying, WANG Da-peng, LI Wei, et al. Improved electrical insulation of rare earth permanent magnetic materials with high magnetic properties[J]. Journal of Iron and Steel Research......