Author:
Dmytrenko O.E.,Kolodiy I.V.,Yanko T.B.,Borysenko V.M.,Irwin K.,Vasilenko R.L.
Abstract
A comprehensive study of the technical parameters and conditions for the synthesis of ternary alloys in the Ti-Zr-Ni system by the “hydride cycle” method was carried out. The influence on the synthesis process of such parameters as: temperature and annealing time, heating rate, cooling conditions, material composition, dispersion, hydrogen content in the hydrides used, the presence of impurities, mixing and pressing methods, and the degree of pressing of the starting components was determined. The alloys of the following compositions were synthesized and investigated: Ti40.5Zr31.9Ni27.6, Ti41.5Zr41.5Ni17, Ti40Zr40Ni20, Ti44Zr40Ni16. The optimal technological parameters and conditions for the synthesis of ternary alloys are determined. It has been established that the key factors in the process of compound formation during hydride dissociation are the dispersion and homogeneity of the initial compacted components. It was found that the synthesis of ternary alloys in the Ti-Zr-Ni system occurs during a short-term exothermic reaction in the “thermal explosion” mode, which begins in the temperature region corresponding to the α↔β polymorphic transformation of zirconium and titanium.
Publisher
Problems of Atomic Science and Technology
Reference20 articles.
1. R.M. Stroud, A.M. Viano, E.H. Majzoub, P.C. Gibbons, K.F. Kelton. Ti-Zr-Ni quasicrystals: structure and hydrogen storage // Materials Research Society. Symp. Proc. 1996, N 400, p. 255-260.
2. R.M. Stroud, K.F. Kelton, S.T. Misture. High-temperature x-ray and calorimetric studies of phase transformations in quasicrystalline Ti-Zr-Ni alloys // J. Mater. Res. 1997, N 12(2), p. 434-438.
3. I. Zavaliy, G. Wojcik, G. Mlynarek, I. Saldan, V. Yartys, M. Kopczyk. Phase-structural characteristics of (Ti1-xZrx)4Ni2O0.3 alloys and their hydrogen gas and electrochemical absorption-desorption properties // Journal of Alloys and Compounds. 2001, N 314, p. 124-131.
4. O.Ye. Dmytrenko, I.V. Kolodiy. Influence of the hydrogen saturation temperature on the structure of melt-spun Ti30Zr45Ni25 alloys // Problems of Atomic Science and Technology. Series “Vakuum, Pure materials, Superconductors” (22). 2018, N 1(113), p. 162-168.
5. V.M. Azhazha, A.M. Bovda, S.D. Lavrinenko, L.V. Onishchenko, S.V. Malykhin, A.T. Pugachev, M.V. Reshetnyak, A.N. Stetsenko, B.A. Savitsky. Synthesis and stability of Ti-Zr-Ni quasicrystals // Problems of Atomic Science and Technology. Series “Vacuum, Pure materials, Superconductors”. 2007, N 4, p. 82-87.