The behavior of 3d-electrons in pure Ni,Co,Cr metals and Ni-Co-Cr alloys with different compounds has been studied by two-detector coincidence system of Doppler broadening of positron annihilation *** experimental res...
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The behavior of 3d-electrons in pure Ni,Co,Cr metals and Ni-Co-Cr alloys with different compounds has been studied by two-detector coincidence system of Doppler broadening of positron annihilation *** experimental results show that the 3d electron signal for pure Ni metal is relaticely *** replace of some Ni atoms to Co atoms in Ni-Co-Cr alloys leads to an increase in the probility of positron annihilation with 3d *** experimental ratio curves for three Ni-Co-Cr alloys are greatly similar to the corresponding theoretic ratio curves,which indicate that the bonding nature in Ni-Co-Cr alloys is mainly metallic.
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