Table 1 Average crystal sizes from XRD, spinel lattice parametera calculated from XRD spectra, the specific magnetization (M s), remnant magnetization (M r), the ratio of the ratio of remnant magnetization to bulk saturation magnetization (M r/M s), and coercive forces (H c) of the MgFe2O4/PVP composite samples calcined in air at 500, 600, 700, and 800 °C for 2 h
From: Magnesium Ferrite (MgFe2O4) Nanostructures Fabricated by Electrospinning
MgFe2O4sample | Average crystallite size from XRD (nm) | Spinel lattice parametersa(nm) | M sat 10 kOe (emu/g) | M r(emu/g) | M r/M s | H c(Oe) |
|---|---|---|---|---|---|---|
Calcined at 500 °C | 15 ± 4 | 0.8372 ± 0.0007 | 17.0 | 0.6 | 0.035 | 35.8 |
Calcined at 600 °C | 17 ± 1 | 0.8362 ± 0.0012 | 20.7 | 0.8 | 0.040 | 37.6 |
Calcined at 700 °C | 23 ± 2 | 0.8353 ± 0.0011 | 25.7 | 2.4 | 0.095 | 71.2 |
Calcined at 800 °C | 24 ± 3 | 0.8346 ± 0.0030 | 31.1 | 4.7 | 0.151 | 98.9 |