| A NEUTRON DIFFRACTION DETERMINATION OF SHORT RANGE ORDER IN A Ni63.7Zr36.3 GLASS (1985) | |||||||||||||||
Abstract | |||||||||||||||
| A precise determination of the three partial structure factors for the eutectic composition Ni63.7Zr36.3 has been carried out using neutron diffraction on three isotopically substituted glasses. The use of a "zero alloy" yields a direct determination of the Bhatia-Thornton structure factor SCC. Evidence for the existence of strong chemical short-range order and a clear size effect is obtained. Due to this chemical order, the partial structure factors cannot be consistent with the ones calculated for a two components system of hard spheres using the Percus-Yevick equation. Due to the size effect, a short-range order Warren-Cowley parameter cannot be calculated. The deviation from a purely statistical distribution around a nickel is compared to the results recently published for two other Ni-Zr glasses. | |||||||||||||||
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