New MoCd2 phase in film coatings of molybdenum-cadmium system
Journal Title: Eurasian journal of physics and functional materials - Year 2018, Vol 2, Issue 4
Abstract
Ion-plasma sputtering and code position of Mo and Cd ultrafine particles have been used for the first time to prepare solid solutions that are alloys with a concentration up to 57.3 at. % Cd in the film; this confirms the thermal-fluctuation and coalescence of small particles. When coatings are formed by molyb-denum and cadmium nanolayers less than 2 nm in the concentrations range of 60-66 at. % Cd, a new phase was found that was prepared directly in the course of film coating formation; it was identified as the MoCd 2 compound with a tetragonal face-centered lattice, with the parameters a = 0.78231 nm and c = 0.77039 nm. X-ray diffraction data for the identification of the intermetallic compound were determined. The unit cell of MoCd 2 has been constructed. Upon accumulation in the lattice, cadmium first replaces the molybdenum atom in the center of the unit cell, then another cadmium atom is embedded in the molybdenum lattice, replacing the atom at one of the cube corners and accompanied by a cubic- to-tetragonal cell transformation where the cadmium atoms are embedded in pairs on the side faces of the cell in the MoCd 2 compound. Thermal stability of the intermetallic compound is limited by 200 ◦ C. Synthesized phase of MoCd 2 has a metallic type of conductivity.
Authors and Affiliations
Yu. Zh. Tuleushev, V. N. Volodin, Y. A. Zhakanbaev
Keywords
Related Articles
- EP ID EP558866
- DOI 10.29317/ejpfm.2018020406
- Views 76
- Downloads 0
Study of the effect of irradiation on nitride ceramic materials
The paper presents the results of a study of the effect of proton and ion radiation on structural changes in nitride ceramics, which have a high potential for using as a structural material for GenIV nuclear reactors. Pr...
Simulation of trajectories in the MAVR High-Resolution Magnetic Spectrometer
Charged-particle trajectories in theMAVRhigh resolution magnetic spectrometer are simulated. The latter has been constructed at the U400 accelerator for purifying the incident beam and identifying the products of nuclear...
Quark-hadron phase transition study in hadron-nucleus interactions in self-affine scaling scenario
In the present work the phase transition and its dependence on target excitation has been studied in two dimensional ( η − φ ) self affine space using the experimental data of pions obtained from π− -AgBr interactions at...
Discovery of elements 113 - 118
Review of discovery and investigation of isotopes of elements 113-118 produced in the reactions of 48 Ca with target nuclei 238 U- 249 Cf is presented. The synthesis of the heaviest nuclei, their summary decay properties...
THE FIRST IDENTIFICATION OF THE PROTON HALO IN THE EXCITED STATE OF 13N
We demonstrate that the radii of excited nuclear states can be estimated using the (3He,t) charge-exchange reaction and relying on the modified diffraction model.The radius of the 13N excited state with an excitation ener...