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Synthesis and Structural Analysis of Binary Alloy (<TEX>$MoRu_3$</TEX>, <TEX>$MoRh_3$</TEX>)
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1998, v.11 no.3, pp.189-193
Park,
Y. J., Lee,
J., Kim,
J. G., Kim,
J. S., &
Jee,
K.
(1998). Synthesis and Structural Analysis of Binary Alloy (<TEX>$MoRu_3$</TEX>, <TEX>$MoRh_3$</TEX>). Analytical Science and Technology, 11(3), 189-193.
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Abstract
Binary alloys, <TEX>$MoRu_3$</TEX> and <TEX>$MoRh_3$</TEX>, have been prepared using arc melting furnace. Mo and the noble metals Ru and Rh are the constituents of metallic insoluble residues, which were found in the early days of the post-irradiation studies on uranium oxide fuels. Detailed structural informations about these alloys have not been reported on JCPDS files of ICDD (International Centre for Diffraction Data). The results of X-ray diffraction study showed that the alloy was crystallized in hexagonal close-packing, well known as <TEX>${\varepsilon}$</TEX>-phase. The X-ray diffraction patterns of these alloys matched well to that of <TEX>$WRh_3$</TEX> with <TEX>$P6_3/mmc$</TEX> of space group. The lattice parameters, a and c, were calculated using the least squares extrapolation. It was found from X-ray photoelectron spectroscopic measurements that Mo on the surface of the alloy was oxidized to Mo(6+), which could be removed by sputtering with Ar ions for approximately 15 minutes. The changes in binding energy of Mo, Ru, and Rh on the surface of the alloy were not observed. Magnetic susceptibility measurements resulted in the typical Pauli-paramagnetic behavior in the temperature range of 2 to 300 K.
- keywords
- Alloy, Insoluble residue, X-ray diffraction, X-ray photoelectron spectroscopy, Magnetic susceplibility
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