If the ionic size-mismatch between substituted and the host ions is important, the introduction of Be2+ (ionic radius 0.3 ) may be more effective rather than Li+ (0.60 ). On the other hand, if the changes in electronic configuration are important, the Mg2+ may play a different role from...
Electronic Configuration: The electronic configuration of an atom or an ion is the definite arrangement of all the electrons around the nucleus in the specific shells and energy levels. This can explain some of the concepts including the binding of ligands with the transition metals. Answer ...
When electrons are put together in some definite atomic orbitals, then this process is referred as the electronic configuration. This is important part of chemistry as these configurations affects the chemical reactions of a particular element.
In this configuration, Mg2Ni serves as the contact layer, providing both low interfacial contact resistivity (ρc) and good mechanical bonding strength,52 while Ag is chosen as the soldering layer. SEM combined with EDS (SEM-EDS) analysis of the interfaces reveals no observable secondary phase ...
Nevertheless, the extra-nuclear electronic configuration of TMs in the periodic table is definite67. Besides, we notice that (e/a)i assignment for the e/a-ratio calculation in Hume-Rothery rule is adopted as the usual valences of the constituent elements32,47,68. Therefore, the e/a-ratio...
supercell, which gives a ‘pseudo-dumbbell’ configuration42due to symmetric (equal) atomic charges and magnetic moments of both oxygens despite a long 1.87 Å distance between them. TheOS= 2− leads to formation of the dumbbell (a split interstitial) configuration with the shorter bond ...
In order to accomplish the real-time transfer of mechanism configuration during moving process, a new kinematic pair, named as additional constraint kinematic pair, is proposed. Being different from the traditional kinematic pair this new kinematic pair can supply varying constraint number under certain...
The calculated works of adhesion and interfacial energies showed that the HCP-configuration Mg(0001)/Mg2Pb(110) interface has the smallest interfacial energy (0.92 J/m(2)), the largest adhesive work (0.65 J/m(2)) and the most thermodynamical stability. The thermodynamical stability of the HCP...
We use an ab initio approach based on the formalism of non-empirical pseudo-potential for Mg2+ and Cs+ cores, large Gaussian basis sets, and full-valence configuration interaction. In this context, the (MgCs)+ cation is treated as an effective two-electron system. Adiabatic potential energy ...
Microstructure and mechanical properties of laser welding joints with/without Cu or Pb foil in an overlap steel-on-aluminum configuration are investigated. A good agreement between the experimental results and theoretical predictions for the improved mechanical properties can be seen...