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microstructure (OM) was observed by an Olympus BX53M. Phase constitutions were determined by an U1tima IV X-ray diffractometer using a Cu Kα radiation with a scanning angle from 10° to 90° and a scanning... the necessarily theoretical and experimental basis to prepare Mg alloys with better mechanical properties. 2 Experimental The alloy ingots with nominal compositions of ZTM641-xAl (x=0, 0.5, 1, 2, 3 and 4......
examined by the uniaxial tension and compression tests. Their microstructures were characterized by electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM). Higher strength and better... Foundation of China (No. 51971041), and the Natural Science Foundation of Chongqing, China (No. cstc2019jcyj- msxmX0234). References [1] YAO M Y, ZHOU B X, LI Q, LIU W Q, GENG X, LU Y P......
杂SrTiO3 透明导电薄膜的光电子能谱研究[J]. 物理学报, 2002, 51(1): 187-191.CUI Da-fu, WANG Huan-hua, DAI Shou-yu, ZHOU Yue-liang, CHEN Zheng-hao, YANG Guo-zhen, LIU Feng-qin, IBRAHIM K, QIAN Hai-jie. X-ray photoelectron...等.而B阳离子价态的变化必然会使其配位数发生改变,并引起多面体结构的演变.根据A,B位离子的大小以及部分取代的情况,钙钛石的结构可以发生不同的畸变. 钙钛矿型氧化物具有在保持稳定的晶体结构的基础上,通过A位B位金属离子的部分替换形成如A1-xA’xBO3,AB1-x B’x O3 和A1-x A’x B1-y B’yO3型化合物,对组分元素及价态进行控制,从而使该材料的催化活性呈现丰富的多样性......
] Nagai Y, Yamamoto T, Tanaka T, Yoshida S, Nonaka T, Okamoto T, Suda A, Sugiura M. X-ray absorption fine structure analysis of local structure of CeO2-ZrO2 mixed oxides with the same composition...+[33]的存在则增强了贵金属与CeO2的作用. SINGH等[32]以三聚氰胺为络合剂利用水热法合成了8~10 nm的Ce1-xRuxO2-δ(x=0.05, 0.10)纳米晶体.用XRD,TEM,XPS和EDX进行了表征.该化合物晶体具有萤石结构,Ru为+4价,Ce为(+3~+4)的混合价.部分取代CeO2的Ru4+离子激活晶格氧,Ce1-xRuxO2-x/2 在x=0.05和0.10时分别可逆释放......
of mineral composition and physical and chemical properties of ashes To determine the mineralogical composition of the bottom ash and fly ash, X-ray diffractograms of powdered samples were obtained......
and the compositions of the phases at the different quenching temperatures were analyzed by scanning electron microscopy (SEM; S250MK3) with accessory energy dispersive X-ray micro-analyzer (EDXMA). The segregation... and Compounds, 2007, 436: 155-160. [19] ZHAO X, LIU L, YU Z, ZHANG W, ZHANG J, FU H. Influence of directional solidification variables on the microstructure and crystal orientation of AM3 under high thermal......
compound became larger with increase in pouring temperature. The energy-dispersive X-ray analysis (EDS) results of sand-cast GW103K alloys poured at different pouring temperatures are shown in Figs......
, China[J]. Acta Geologica Sinica, 2012, 86(12): 1957-1971. [17] GLEB S P, BORIS R T, JACQUES S. An in situ X-ray absorption spectroscopy study of gold-chloride complexing in hydrothermal fluids[J.... Fluid inclusion characteristics and stable isotope composition of the Chahansala gold deposit, western Tianshan, Xinjiang, China[J]. Acta Geologica Sinica, 2011, 85(4): 505-515. [21] LAI J Q, CHI Q X......
% Cr2O3), ilmenite paste (0.17% V2O5 and 0.37% Cr2O3) and the final obtained oxides in this study were determined using energy dispersive X-ray fluorescence (EDX) spectrometer Model (Oxford) attached... 12. The previous studies [4] reported that Cr(III) is extracted with the highest yield from the alkaline aqueous solutions by Aliquat 336 as hydroxochromates(III), [Crn(OH)(3n+x)]x-. Cr(OH)4- became......
hypoeutectic Al-Si alloy by micro X-ray fluorescence analysis [J]. Scripta Materialia, 2006, 55(9): 787-790. [21] PRASADA RAO A K, DAS K, MURTY B S, CHAKRABORTY M. On the modification and segregation...Microstructure, mechanical properties and corrosion behavior of Al-Si-Cu-Zn-X (X=Bi, Sb, Sr) die cast alloy Saeed FARAHANY1, Ali OURDJINI2, Hamid Reza BAKHSHESHI-RAD3 1. Department of Materials......
