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- Title
Effect of a thermal factor on the concentration-structure ordering in ion-plasma W-Ti-B condensates.
- Authors
Shpak, A.; Sobol’, O.; Kunitskaya, L.; Barabash, M.; Kunitskii, Yu.; Khomenko, L.
- Abstract
Small-angle X-ray scattering is used to study the effect of deposition and annealing conditions on the concentration-structure ordering in ion-plasma W-Ti-B condensates. At a relatively low condensation temperature of a solid solution (up to Tc = 770 K), the formed modulated structure has a uniform volume distribution of its structural elements. A stage-by-stage transition from a volume-modulated to a two-dimensional modulated structure is revealed when the condensation temperature increases from 570 to 1170 K. As the annealing time of the metastable postcondensation state of an ion-plasma condensate increases, the diffusion mobility of metallic atoms (W, Ti) decreases upon the formation of a modulated ordered structure. The action of a radiation factor in a three-electrode ion sputtering scheme enhances the concentration phase separation in a condensate, decreases the transition temperature, and stimulates an increase in concentration ordering wavelength λod.
- Subjects
X-ray scattering; SOLID solutions; CONDENSATION; PROPERTIES of matter; SEMICONDUCTOR doping; SPUTTERING (Physics); COLLISIONS (Nuclear physics)
- Publication
Technical Physics, 2010, Vol 55, Issue 8, p1150
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/S1063784210080128