This should be mainly caused by the different original state of the materials. In this study, ECAP was performed on the extruded ZN20 alloy, and the extrusion was carried out at low temperature and high extrusion ratio. Therefore, there were lots of substructure grains in the as-extruded ZN...
【简答题】用标准加入法测定离子浓度时,在100mL铜盐中加入1mL0.10mol·L-1Cu(NO3)2,电动势增加了4mV,求铜盐溶液中原来的铜的浓度。 查看完整题目与答案 【单选题】铁在等物质的量浓度下列溶液中被腐蚀时由快到慢的顺序是 () A. e>d>a>b>c>f B. e>f>c>a>b>d C. e>c>f>a>b>d ...
This document is part of Subvolume A11 'Structure Types. Part 11: Space Groups (135) P 4 2 / mbc - (123) P 4/ mmm ' of Volume 43 'Crystal Structures of Inorganic Compounds' of Landolt-Brnstein - Group III 'Condensed Matter'. It contains the standardized crystallographic data s...
Single phase MgMoO4 as catalyst for the synthesis of bundled multi-wall carbon nanotubes by CVD Y. Li a, X.B. Zhang a,*, X.Y. Tao a, J.M. Xu b, F. Chen a, L.H. Shen a, X.F. Yang a, F. Liu a, G. Van Tendeloo c, H.J. Geise d a State Key Laboratory of ...
It was found that Li4MgReO6 crystallizes in space group C2/m with lattice parameters, a=5.0978(3) Angstrom, b=8.8163(5) Angstrom, c=5.0815(3) Angstrom, and beta=109.835(2)degrees. This structure is an ordered variant of Li2SnO3 in which Li+, Mg2+, and Re6+ ions occupy the Sn4...
spaceofMg–Allayereddoublehydroxide.Theintercalationcompoundsadsorbedmercuryandsliverionseffectively,whereastherewasnoadsorptionofcopperionpractically.©2007ElsevierInc.Allrightsreserved.Keywords:Mg–Allayereddoublehydroxide;Intercalation;Adsorption;Mercaptocarboxylicacid;Solid-stateNMR;Mercuryion1.IntroductionHydrotalcite...
As a matter of record, the model T was offered in other colors for a short while, but Ford eventually withdrew the option. It has to be remembered that the model T was not celebrated as a great car -- it was celebrated as a great car for the price. By a combination of simplified ...
2Experimental 2.1Samples preparation NPs of (Mn1−xMgx)0.8Li0.1Fe2.1O4, (x: 0–1, step 0.2) were synthesized by the sol–gel autocombustion route. Appropriate amounts of the specified metal nitrates: [Fe(NO3)3.9H2O], [LiNO3], [Mg(NO3)2.6H2O] and [Mn(NO3)2], were dissolved in ...
Fluorescence and energy transfer in CaMgP2O7:Ce3+, Tb3+ phosphor A series of Ce3+ or Tb3+ doped and Ce3+/Tb3+ co-doped CaMgP2O7 phosphors were prepared by the solid state reaction method. The fluorescence and energy tran... Z Yang,Y Hu,C Li,... - 《Materials Science & ...