Dolotko O. Phase equilibria and crystal structure of the compounds in the Zr-Zn-{Si,Ge,Sn} and Zr-Zn-{Fe,Co,Ni} systems

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0404U001268

Applicant for

Specialization

  • 02.00.01 - Неорганічна хімія

10-03-2004

Specialized Academic Board

Д 35.051.10

Ivan Franko National University of Lviv

Essay

T3. In this work by means of X-ray phase, X-ray structural, thermal and local X-ray spectral analysis a components interaction in Zr-Zn-{Si, Ge, Ge} and Zr-Zn-{Fe, Co, Ni}ternary systems were investigated. Isothermal sections of state diagrams at 600°C were built for the first time. The 12 new ternary compounds were found in these systems. The crystal structure of the 7 compounds was established, 2 of them (Zr2ZnNi and Zr9ZnNi10 crystallized in own structure type. The crystal structure of 4 ternary and 1 binary compounds was investigated using singlecrystal method. The crystal structures of the 3 ternary compounds were investigated using powder method. The homogeneous regions of the 24 solid solutions based on binary compounds were investigated. Hydrogenation under high pressure and electrochemical hydrogenation of the ZrZnxNi5-x (x=0-1), ZrZnxNi2-x (x=0-0,5) and Zr9ZnNi10 alloys was carried out in real power source elements. It was obtained that hydrogenation increases when a part of Zn in alloys incrases.

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