Reduction of Co, Cu, Fe, Mo and Ni Metal Salts Solution

V. M. Nadutov, V. Z. Voynash, A. O. Perekos, V. P. Zalutskiy

G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine

Received: 26.05.2020. Download: PDF

The solution of salts of iron, nickel, cobalt, copper and molybdenum (Fe$_2$C$_2$O$_4\cdot$2H$_2$O, Ni$_2$C$_2$O$_4\cdot$2H$_2$O, Co$_2$C$_2$O$_4\cdot$2H$_2$O, Cu$_2$C$_2$O$_4\cdot$H$_2$O, (NH$_4$)$_2$MoO$_3$) reduces in hydrogen containing atmosphere of Ar + 5 at.% H$_2$ at temperatures of 300, 400, 600, 800, 1000°C for 1 hour and at 1000°C for 2 hours. In addition, the powder, reduced at 1000°C for 2 hours, anneals in argon at 1200°C for 2 hours. By X-ray phase analyses, phase content of powders is determined at every stage of reduction.

Key words: ultra-fine powders, multi-component alloys, reduction, X-ray phase analyses.

URL: http://mfint.imp.kiev.ua/en/abstract/v42/i10/1363.html

DOI: https://doi.org/10.15407/mfint.42.10.1363

PACS: 61.05.cp, 61.43.Gt, 61.46.Df, 81.07.Wx, 81.10.-h

Citation: V. M. Nadutov, V. Z. Voynash, A. O. Perekos, and V. P. Zalutskiy, Reduction of Co, Cu, Fe, Mo and Ni Metal Salts Solution, Metallofiz. Noveishie Tekhnol., 42, No. 10: 1363—1372 (2020) (in Ukrainian)


REFERENCES
  1. I. D. Morokhov, L. I. Trusov, and S. P. Chizhik, Ul’tradispersnye Metallicheskie Sredy [Ultrafine Metallic Media] (Moscow: Atomizdat: 1977) (in Russian).
  2. A. P. Shpak, Yu. A. Kunitskiy, and V. L. Karbovskiy, Klasternye i Nanostrukturnye Materialy [Cluster and Nanostructured Materials] (Kyiv: Akademperiodika: 2001) (in Russian).
  3. A. I. Gusev and A. A. Rempel’, Nanokristallicheskie Materialy [Nanocrystalline Materials] (Moscow: Fizmatgiz: 2001) (in Russian).
  4. N. F. Kushchevskaya, A. E. Perekos, I. V. Uvarova, V. Z. Voynash, T. V. Efimova, V. P. Zalutskiy, E. V. Pol’shin, A. E. Kushchevskiy, and N. D. Rud’, Metallofiz. Noveishie Tekhnol., 30, No. 9: 1259 (2008) (in Russian).
  5. N. F. Kushchevskaya, I. V. Uvarova, and A. I. Oleshko, Nanostrukturnoe Materialovedenie, No. 2: 19 (2005) (in Russian).
  6. N. F. Kushchevskaya, Poroshkovaya Metallurgiya, No. 3/4: 111 (1999) (in Russian).
  7. O. M. Barabash and Yu. N. Koval’, Kristallicheskaya Struktura Metallov i Splavov [Crystal Structure of Metals and Alloys] (Kyiv: Naukova Dumka: 1986) (in Russian).