TY - JOUR
T1 - Crystal Structure Evolution of Magnetite Ferrofluids
T2 - International Conference on Condensed Matters and Advanced Materials 2018, IC2MAM 2018
AU - Taufiq, Ahmad
AU - Hidayat, Nurul
AU - Eko Saputro, Rosy
AU - Sunaryono,
AU - Susanto, Hendra
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019
Y1 - 2019
N2 - This work aimed at investigating the crystal evolution, crystallite phase, morphology, and particle size of the magnetite ferrofluids as the effects of heating temperature. The iron sand was used to prepare magnetite ferrofluids by employing a simple chemical method. The high-resolution transmission microscopy characterization presented that the particle size and morphology were expanded from small to bigger size in nanometric size with aggregation. The electron and X-ray diffractions patterns exhibited that the magnetite particles in the fluids evolved from Fe3O4 (cubic structure) structure to α-Fe2O3 (rhombohedral structure) as the effect of heating treatment. At a temperature of 500 °C, the magnetite particles had a mixed crystallite phases consisting of α-Fe2O3 and Fe3O4 structures. Interestingly, at the temperature of 600 °C or higher, the magnetite particles in the fluids changed to the pure α-Fe2O3 structure. Such evolution phenomenon gives significant information in designing new sophisticated application of the magnetite ferrofluids, especially for the temperature sensor.
AB - This work aimed at investigating the crystal evolution, crystallite phase, morphology, and particle size of the magnetite ferrofluids as the effects of heating temperature. The iron sand was used to prepare magnetite ferrofluids by employing a simple chemical method. The high-resolution transmission microscopy characterization presented that the particle size and morphology were expanded from small to bigger size in nanometric size with aggregation. The electron and X-ray diffractions patterns exhibited that the magnetite particles in the fluids evolved from Fe3O4 (cubic structure) structure to α-Fe2O3 (rhombohedral structure) as the effect of heating treatment. At a temperature of 500 °C, the magnetite particles had a mixed crystallite phases consisting of α-Fe2O3 and Fe3O4 structures. Interestingly, at the temperature of 600 °C or higher, the magnetite particles in the fluids changed to the pure α-Fe2O3 structure. Such evolution phenomenon gives significant information in designing new sophisticated application of the magnetite ferrofluids, especially for the temperature sensor.
UR - http://www.scopus.com/inward/record.url?scp=85065658738&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/515/1/012004
DO - 10.1088/1757-899X/515/1/012004
M3 - Conference article
AN - SCOPUS:85065658738
SN - 1757-8981
VL - 515
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012004
Y2 - 5 September 2018
ER -