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Thermal stability of Ti 41 Zr 41 Si 18 metallic glass studied by small‐angle neutron scattering
Author(s) -
Borély S.,
Smirnov L. S.,
Kovneristii Yu. K.,
Nartova T. T.,
Tarasova O. B.,
Yu. Bezzabotnov V.,
Ostanevich Yu. M.
Publication year - 1991
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221640202
Subject(s) - annealing (glass) , scattering , small angle neutron scattering , materials science , small angle scattering , amorphous metal , amorphous solid , neutron scattering , thermal stability , neutron , intensity (physics) , biological small angle scattering , radius , analytical chemistry (journal) , molecular physics , optics , crystallography , chemistry , physics , nuclear physics , composite material , organic chemistry , chromatography , computer security , computer science
The thermal stability of amorphous Ti 41 Zr 41 Si 18 alloys is studied by small‐angle neutron scattering. In as‐quenched samples inhomogeneities of 8.1 nm in radius are observed which disappeared during a low temperature (250 °C) annealing treatment. The annealing carried out a 500 °C for different times (10, 30, 60 min, and 24 h) leads to a considerable increase of the scattered intensity. Because of the interparticle correlation the dimensions of the particles must be determined by the least‐squares fitting of the total scattering cross‐section formula to the measured intensity pattern. The dimensions of the particles obtained in this way do not explain the non‐monotonous time course of the scattered intensity. Therefore it is concluded that the scattering length density of the particles, that is their composition, has changed during the high temperature annealing treatment.