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(AFM), and transmission electron microscopy (TEM). It was found that Co substitution was significantly effective in improving the magnetic properties and the thermal stability of nanocrystalline...-free samples to 1.041 T and 155.1 kJ/m3 for the 12at% Co-substituted samples, respectively. About 10 K increase in Curie temperature was observed for the 2:14:1 phase with 1at% Co substitution......
却随Al含量的增加而明显降低. 关键词:贮氢合金; Al替代Ni; X射线衍射; 电化学性能; hydrogen storage alloy; Al substitution for Ni; X-ray diffraction; electrochemical performances; [全文内容正在添加中] ......
Influences of Ti substitution on the structure and electrochemical properties of Mg1-xTixNi(x=0,0.1, 0.2, and 0.3) hydrogen storage alloysHUANG Hongxiaa, b, HUANG Kelonga, LIU Suqina, and CHEN... was partially substituted by Ti to improve the cycle stability of the alloys. The effects of the substitution of Ti for Mg on the microstructure and electrochemical performances of the alloys were investigated......
Luminescence Properties and Site Substitution of Eu3+and Bi3+ in Me2Y8(SiO4)6O2林君,李彬摘 要:LuminescencePropertiesandSiteSubstitutionofEu3+andBi3+inMe2Y8(SiO4)6O2LinJun(林君);LiBin(李彬)(InstituteofMaterialsScienc?..关键词:......
; electrochemical performance; elemental substitution 1 Introduction Mg-based hydrogen storage materials have attracted much attention during last decades due to their high capacity, relatively low cost...; This order coincides well with that of Eq. (2), suggesting that the lattice parameters of the Mg-Co- based BCC alloys could be a factor in discharge capacity. One can find that the substitution of Zr......
that the capacity of LiMnPO 4 could be largely increased by Fe2+ substitution. At a current rate of C/20, the capacity of the three samples (x=0,0.2,0.4) were 47, 107 and 150 mA·h·g-1 , respectively. CV result showed that the Fe2+ substitution could decrease the polarization during charging/discharging, accelerating the electrochemical process. EIS result showed that the Fe2+ substitution could......
Effect of component substitution on the microstructure and mechanical properties of MCoCrFeNiTix (M = Cu, Al) solid-solution alloysZHOU Yunjun, ZHANG Yong, WANG Xuefei, WANG Yanli, and CHEN Guoliang...: molar ratio, x = 0, 0.5) alloys were prepared using the new alloy-design strategy of equal-atomic ratio and high entropy. By the component substitution of Al for Cu, the microstructure changes from......
Influence of Sn substitution for Co in RCo2 (R=Gd,Tb,Dy) alloys on the structure and magnetocaloric effectZHUANG Yinghong1), DENG Jianqiu1), LI Junqin2), ZHAN Yongzhong1), ZHU Qiming1), and ZHOU... and the magnetocaloric effect in the alloys R(Co1-xSnx)2 with x=0, 0.025, 0.050, 0.075, and 0.100 were investigated by X-ray diffraction analysis and magnetization measurement. The substitution of Sn in RCo2......
替代硬铬的镀钴合金及其复合镀层的研究现状及展望 胡振峰1,汪笑鹤1,徐滨士1 (1.装甲兵工程学院装备再制造技术国防科技重点实验室,北京,100072) 摘要:六价硬铬电镀工艺严重污染环境,以电沉积钴基合金及其复合镀替代硬铬具有较广的应用前途.综述了电沉积钴基合金及其复合镀层的研究现状,指出非晶钴合金,钴合金纳米复合镀及稀土钴合金在今后的发展中将有更广阔的应用前景. 关键词:代铬镀层; 钴合金; 复合镀层; 电镀硬铬; substitution of electroplated Cr coating; cobalt alloy coating; composite coating; hard chromium electroplating; [全文内容正在添加中] ......
Enhancement of luminescence and afterglow in Ca0.8Zn0.2TiO3:Pr3+ by Nb5+ substitution for Ti4+黄平,武雅乔,崔彩娥,郭瑨Department of Physics and Optoelectronics,Taiyuan University of Technology摘 要:Nb5+ doped Ca0.8Zn0.2TiO3:Pr3+ red long afterglow phosphors were synthesized by solid-state reaction methods. X-ray diffraction, photoluminescence spectroscopy......