TY - JOUR
T1 - Crystallite size dependence on electrical properties of LaFeO3.0.1Fe3O4 nanocomposite material
AU - Rhidwan, I.
AU - Triyono, D.
AU - Laysandra, H.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/5/2
Y1 - 2017/5/2
N2 - LaFeO3.0.1Fe3O4 nanocomposite was prepared by sintering method. LaFeO3 was synthesized by the sol-gel method and mixed with Fe3O4. The mixture was pressed and then sintered at 1300°C for 1 h resulting nanocomposite. After that, LaFeO3.0.1Fe3O4 nanocomposite was annealed at temperatures of 1000°C, 1100°C, and 1200°C for 12 h. Structural analysis by using X-ray diffraction (XRD) confirm the double phase of LaFeO3 and Fe3O4. The crystallite sizes calculated by using Scherrer's formula are in the range of 30-60 nm. By using impedance spectroscopy method, the electrical properties were evaluated as functions of frequency (1 kHz-1 MHz) and temperature (RT - 373 K). Electrical properties were represented in Nyquist plot and Bode plot as a function of temperature. Bode plot of Z" vs f shows that relaxation peaks shift to the higher frequency. From the plot of ln τ vs 1/T, the activation energy was calculated.
AB - LaFeO3.0.1Fe3O4 nanocomposite was prepared by sintering method. LaFeO3 was synthesized by the sol-gel method and mixed with Fe3O4. The mixture was pressed and then sintered at 1300°C for 1 h resulting nanocomposite. After that, LaFeO3.0.1Fe3O4 nanocomposite was annealed at temperatures of 1000°C, 1100°C, and 1200°C for 12 h. Structural analysis by using X-ray diffraction (XRD) confirm the double phase of LaFeO3 and Fe3O4. The crystallite sizes calculated by using Scherrer's formula are in the range of 30-60 nm. By using impedance spectroscopy method, the electrical properties were evaluated as functions of frequency (1 kHz-1 MHz) and temperature (RT - 373 K). Electrical properties were represented in Nyquist plot and Bode plot as a function of temperature. Bode plot of Z" vs f shows that relaxation peaks shift to the higher frequency. From the plot of ln τ vs 1/T, the activation energy was calculated.
UR - http://www.scopus.com/inward/record.url?scp=85019658063&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/188/1/012058
DO - 10.1088/1757-899X/188/1/012058
M3 - Conference article
AN - SCOPUS:85019658063
SN - 1757-8981
VL - 188
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012058
T2 - International Symposium on Current Progress in Functional Materials 2016, ISCPFM 2016
Y2 - 26 July 2016 through 27 July 2016
ER -