- Tytuł:
- Structure and Magnetic Properties of Nanocrystalline $NiFe_{2}O_{4}$ Prepared via Precipitation Route
- Autorzy:
-
Žák, T.
David, B.
Ćosović, A.
Ćosović, V.
Živković, D.
Talijan, N. - Powiązania:
- https://bibliotekanauki.pl/articles/1378217.pdf
- Data publikacji:
- 2014-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
61.05.cp
75.50.Tt
81.07.Bc
81.07.Wx - Opis:
- Nanocrystalline Ni-ferrite was synthesized by modified precipitation method in which soluble starch is used as dispersing agent and $Na_{2}CO_{3}$ as a precipitating agent. $NiSO_{4}·6H_{2}O$ and $Fe(NO_{3})_{3}·9H_{2}O$ were used as precursors for nickel and ferric oxide, respectively. The obtained nanocrystalline Ni-ferrite was analysed and discussed through structural, compositional and magnetic characterization. Formation of pure $NiFe_{2}O_{4}$ phase with average crystallite size of 21 nm has been confirmed by X-ray diffraction analysis (XRD). The determined phase composition was additionally supported by results of $\text{}^{57}Fe$ Mössbauer phase (MS) analysis and material's nanocrystalline structure by field emission scanning electron microscopy (FE-SEM). Thermomagnetic behaviour was studied up to 800 °C. The obtained room temperature magnetic hysteresis loop, recorded by means of a vibrating sample magnetometer (VSM), exhibits characteristic "S" shape of the soft magnetic material with the measured coercivity of about 10 kA/m and the specific moment up to 40 $Am^{2}$/kg.
- Źródło:
-
Acta Physica Polonica A; 2014, 126, 1; 142-143
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł