TITLE:
Structural, Magnetic and Heating Efficiency of Ball Milled γ-Fe2O3/Gd2O3 Nanocomposite for Magnetic Hyperthermia
AUTHORS:
Abdelaziz Sabik
KEYWORDS:
Magnetic Hyperthermia, Iron Oxides Nanoparticles, Maghemite, Ball Milling, XRD, VSM
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.14 No.1,
January
26,
2024
ABSTRACT: The preparation of γ-Fe2O3/Gd2O3 nanocomposite for possible use in magnetic hyperthermia application was done by
ball milling technique. The nanocomposite
was characterized by X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The heating efficiency
and the effect of milling time (5 h and 30 h) on the structural and
magnetic properties of the nanocomposite were reported. XRD analysis confirms
the formation of the nanocomposite, while magnetization measurements show that
the milled sample present hysteresis with
low coercivity and remanence. The specific absorption rate (SAR) under
an alternating magnetic field is investigated as a function of the milling
time. A mean heating efficiency of 68 W/g and 28.7 W/g are obtained for 5 h and
30 h milling times respectively at 332 kHz and 170 Oe. The results showed that
the obtained nanocomposite for 5 h milling time is a promising candidate for
magnetic hyperthermia due to his properties which show an interesting magnetic
behavior and high specific absorption rate.