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CO oxidation over CuO catalysts supported on CeO2-ZrO2 prepared by microwave-assisted co-precipitation:The influence of CuO content
来源: 《Journal of Rare Earths2014年第2期》——杨志强 毛东森 郭晓明 卢冠忠
and reducibility of CuO,and high oxygen vacancy concentration in the catalyst.关键词:......
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Rare earth metal modified three dimensionally ordered macroporous MnOx-CeO2 catalyst for diesel soot combustion
来源: 《Journal of Rare Earths2018年第1期》——Qing Tang Jun Du Bin Xie Yu Yang Wenchong Yu Changyuan Tao
and the reagent and restraining soot combustion. The doping of Nd into MnOx-CeO2 enhances the catalytic activity because of increased oxygen vacancy, Mn4+content and stronger redox ability. Nd-doping also......
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Solute atom migration in GH4169 superalloy under electrostatic fields
来源: 《International Journal of Minerals Metallurgy and Materials2013年第12期》——Yao Wang Lei Wang Yang Liu Xiu Song Bei-jiang Zhang Jin-hui Du
,and Nb atoms can be accelerated by EFT,which results in the coarsening of γ and γ phases.Meanwhile,lattice distortion can be caused by the segregation of Fe and Cr atoms,owing to the vacancy flows......
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Structural,morphological,and optical properties of tin(Ⅳ) oxide nanoparticles synthesized using Camellia sinensis extract: a green approach
来源: 《International Journal of Minerals Metallurgy and Materials2017年第9期》——J.Celina Selvakumari M.Ahila M.Malligavathy D.Pathinettam Padiyan
was found to decrease with increasing annealing temperature. The O vacancy defects were analyzed using photoluminescence spectroscopy. The increase in the crystallite size, decreasing band gap......
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Effect of Interactions Among Elements on Diffusion Process Associated with γ′ Coarsening in a Ni-Based Single-Crystal Superalloy
来源: 《Acta Metallurgica Sinica2020年第7期》——Guang-Lei Wang Dong-Qing Qi Ji-De Liu Jin-Lai Liu Yi-Zhou Zhou Xu-Dong Sun Hai-Feng Zhang Xiao-Feng Sun
/γ’ microstructure is briefly discussed based on pseudo-binary [Ni]-[Al] phase diagram.Interactions among elements can effectively raise the local vacancy formation and vacancy-atom exchange barriers......
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Influence of Alkalis Doping on the Hydration Reactivities of Tricalcium Silicate
来源: 《Journal Of Wuhan University Of Technology Materials Science Edition2019年第1期》——任雪红 张文生 YE Jiayuan WANG Fazhou
correlation with defects. The oxygen vacancy sites resulting from the substitution of alkalis for Ca could readily account for the acceleration of the initial hydration of C3S.关键词:......
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Mechanical Properties and Defective Effects of 316LN Stainless Steel by First-Principles Simulations
来源: 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2011年第11期》——X.Q. Li,), J.J. Zhao,), J.C. Xu,) and X. Liu,) ) Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian , China ) College of Advanced Science and Technology, Dalian University of Technology, Dalian , China ) School of Chemical Engineering, Dalian University of Technology, Dalian , China
of single vacancy defect further enhances the ductility of the alloy, and the existence of interstitial (Fe, H, He) atoms enhances the Young s modulus.关键词:......
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Inhibition of Electromigration in Eutectic SnBi Solder Interconnect by Plastic Prestraining
来源: 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2011年第11期》——X.F. Zhang), H.Y. Liu), J.D. Guo) and J.K. Shang,) ) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang , China ) Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL , USA
of the deformed samples under current stressing, greatly decreasing the density of dislocation and vacancy in the solder, leading to slower diffusion of Bi atoms.关键词:......
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Long-lasting phosphorescence study on Y3Al5O12 doped with different concentrations of Ce3+
来源: 《JOURNAL OF RARE EARTHS2011年第5期》——张粟 李成宇 庞然 姜丽宏 师丽丽 苏锵
indications that the defect in the Ce3+-doped YAG samples was strongly associated with oxygen vacancy. And the defect levels were studied through thermoluminescence (TL) experiment. The results showed......
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Structures and oxygen storage capacities of CeO2-ZrO2-Al2O3 ternary oxides prepared by a green route:supercritical anti-solvent precipitation
来源: 《JOURNAL OF RARE EARTHS2012年第6期》——黄盼 姜浩锡 张敏华
isopropoxide in the solution affected the concentration of oxygen vacancy and the distortion of oxygen sublattice which were responsible for the oxygen storage capacity.The rapidest oxygen uptake/release rate......