Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys
Аутори
Spasojević, MilicaMarković, Dušan
Spasojević, Miroslav
Vuković, Zoran
Maričić, Aleksa
Ribić-Zelenović, Lenka
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Ni-Fe-W-Cu alloy powders were obtained by electrodeposition from an ammonium citrate bath at current densities ranging between 70 and 600 mA cm-2. As the deposition current density increased, the contents of Fe and W in the alloy increased, and those of Ni and Cu decreased. The total cathodic polarization curve was recorded, and partial polarization curves for Ni, Fe and W deposition and hydrogen evolution were determined. The current efficiency of alloy deposition was measured. The powders contained an amorphous matrix and FCC nanocrystals of the solid solution of Fe, W and Cu in Ni. At high current densities, small-sized nanocrystals exhibiting high internal microstrain values were formed. Powder particles were dendrite-and cauliflower-shaped. The dendrites had a large number of secondary branches and higher-order branches containing interconnected globules. The density of branches was higher in particles formed at high current densities. The powders formed at high current densities ...exhibited higher magnetization. Annealing at temperatures up to 460 °C resulted in structural relaxation, accompanied by an increase in magnetization. At temperatures above 460 °C, amorphous matrix crystallization and FCC crystal growth took place, accompanied by a decrease in magnetization.
Кључне речи:
FCC phase / Magnetization / Nanostructured alloy / Nickel-iron-tungsten-copper alloy / PowderИзвор:
Science of Sintering, 2019, 51, 2, 1-13Финансирање / пројекти:
- Усмерена синтеза, структура и својства мултифункционалних материјала (RS-MESTD-Basic Research (BR or ON)-172057)
DOI: 10.2298/SOS1902209S
ISSN: 0350-820X
WoS: 000496249200008
Scopus: 2-s2.0-85070254600
Институција/група
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Spasojević, Milica AU - Marković, Dušan AU - Spasojević, Miroslav AU - Vuković, Zoran AU - Maričić, Aleksa AU - Ribić-Zelenović, Lenka PY - 2019 UR - https://cherry.chem.bg.ac.rs/handle/123456789/3325 AB - Ni-Fe-W-Cu alloy powders were obtained by electrodeposition from an ammonium citrate bath at current densities ranging between 70 and 600 mA cm-2. As the deposition current density increased, the contents of Fe and W in the alloy increased, and those of Ni and Cu decreased. The total cathodic polarization curve was recorded, and partial polarization curves for Ni, Fe and W deposition and hydrogen evolution were determined. The current efficiency of alloy deposition was measured. The powders contained an amorphous matrix and FCC nanocrystals of the solid solution of Fe, W and Cu in Ni. At high current densities, small-sized nanocrystals exhibiting high internal microstrain values were formed. Powder particles were dendrite-and cauliflower-shaped. The dendrites had a large number of secondary branches and higher-order branches containing interconnected globules. The density of branches was higher in particles formed at high current densities. The powders formed at high current densities exhibited higher magnetization. Annealing at temperatures up to 460 °C resulted in structural relaxation, accompanied by an increase in magnetization. At temperatures above 460 °C, amorphous matrix crystallization and FCC crystal growth took place, accompanied by a decrease in magnetization. T2 - Science of Sintering T1 - Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys VL - 51 IS - 2 SP - 1 EP - 13 DO - 10.2298/SOS1902209S ER -
@article{ author = "Spasojević, Milica and Marković, Dušan and Spasojević, Miroslav and Vuković, Zoran and Maričić, Aleksa and Ribić-Zelenović, Lenka", year = "2019", abstract = "Ni-Fe-W-Cu alloy powders were obtained by electrodeposition from an ammonium citrate bath at current densities ranging between 70 and 600 mA cm-2. As the deposition current density increased, the contents of Fe and W in the alloy increased, and those of Ni and Cu decreased. The total cathodic polarization curve was recorded, and partial polarization curves for Ni, Fe and W deposition and hydrogen evolution were determined. The current efficiency of alloy deposition was measured. The powders contained an amorphous matrix and FCC nanocrystals of the solid solution of Fe, W and Cu in Ni. At high current densities, small-sized nanocrystals exhibiting high internal microstrain values were formed. Powder particles were dendrite-and cauliflower-shaped. The dendrites had a large number of secondary branches and higher-order branches containing interconnected globules. The density of branches was higher in particles formed at high current densities. The powders formed at high current densities exhibited higher magnetization. Annealing at temperatures up to 460 °C resulted in structural relaxation, accompanied by an increase in magnetization. At temperatures above 460 °C, amorphous matrix crystallization and FCC crystal growth took place, accompanied by a decrease in magnetization.", journal = "Science of Sintering", title = "Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys", volume = "51", number = "2", pages = "1-13", doi = "10.2298/SOS1902209S" }
Spasojević, M., Marković, D., Spasojević, M., Vuković, Z., Maričić, A.,& Ribić-Zelenović, L.. (2019). Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys. in Science of Sintering, 51(2), 1-13. https://doi.org/10.2298/SOS1902209S
Spasojević M, Marković D, Spasojević M, Vuković Z, Maričić A, Ribić-Zelenović L. Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys. in Science of Sintering. 2019;51(2):1-13. doi:10.2298/SOS1902209S .
Spasojević, Milica, Marković, Dušan, Spasojević, Miroslav, Vuković, Zoran, Maričić, Aleksa, Ribić-Zelenović, Lenka, "Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys" in Science of Sintering, 51, no. 2 (2019):1-13, https://doi.org/10.2298/SOS1902209S . .