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Phase Composition And Thermoelectric Properties Of The Nanocomposite Alloys Naxcu2-X-Ys, M. M. Kubenova, M. Kh. Balapanov, K. A. Kuterbekov, R. Kh. Ishembetov, A. M. Kabyshev, Y. Kh. Yulaeva
Phase Composition And Thermoelectric Properties Of The Nanocomposite Alloys Naxcu2-X-Ys, M. M. Kubenova, M. Kh. Balapanov, K. A. Kuterbekov, R. Kh. Ishembetov, A. M. Kabyshev, Y. Kh. Yulaeva
Eurasian Journal of Physics and Functional Materials
Nanocrystalline alloys of the compositions Na 0.05 Cu 1.95 S, Na 0.075 Cu 1.925 S, Na 0.10 Cu 1.90 S, Na 0.125 Cu 1.750 S, Na 0.15 Cu 1.85 S, Na 0.17 Cu 1.80 S, Na 0.20 Cu 1.77 S were synthesized in a melt medium mixtures of hydroxides NaOH and KOH at a temperature of about 165 ◦ C. X-ray phase analysis showed that the alloys are heterophasic and consist of phases of Cu 9 S 5 digenite, CuS 2 copper disulfide, Covellite CuS, Cu 7 S 4 anilite in various combinations. The crystallite sizes range from 16 to …