β Scribed by D.Nguyen Manh; G.Dinh Hoai; A. Pasturel; C. Colinet
No coin nor oath required. For personal study only.
A microscopic calculation of the chemical short-range order (CSRO) in the FexB ~_~ metallic glasses is presented. The atomic structure of amorphous metal-metalloid alloys is simulated by using an extended Bethe lattice in which different coordination numbers for Fe and B atoms are taken into account. A tight-binding Hamiltonian including p orbitals for B and sd orbitals for Fe is used to describe the concentration dependence of the electronic structure of this alloy. A generalized Warren-Cowley parameter is calculated and is compared with the experimental one. More particularly, we focus our attention on the cohesive properties of these alloys in correlation with CSRO and we present a discussion on the stability of these alloys in the glass-forming range.
π SIMILAR VOLUMES
We have found significant differences between the low temperature Miissbauer spectra of rapidly quenched and electrochemically prepared samples in the investigated cases even if the room temperature spectra were similar. In the spectra of electrodeposited alloys a new component appears at low temper