نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری تربیت مدرس
2 کارشناسی ارشد تربیت مدرس
3 استاد، دانشگاه تربیت مدرس
چکیده
کلیدواژهها
عنوان مقاله [English]
In this study, effect of Carbon Nanotubes (CNT) ferrite samples of Cu0.2Ni0.4Zn0.4Fe2O4, Mg0.95 Zn0.05TiO3
and Ca0.6La0.8TiO3 examined for the reflection loss investigation. In first step the mentioned ferrites were
prepared by solid state reaction and thermal shock techniques. Then, samples with a mixture weight ratios of
ferrite and carbon nanotubes of 98 to 2 percent were placed in an ultrasonic bath. In order to identify the phases
of the synthesized samples, X-ray d iffraction (XRD) was used. Ferrite grain sizes were characterized by field
emission scanning electron microsco py (FESEM). To investigate th e microwave electromagnetic region
properties, the prepared nanocomposites were mixed with xylene solution and the reflection losses curves were
plotted. The maximum reflection losses with appropria te broadband was obtained for Cu0.2Ni0.4Zn0.4Fe2O4
sample. Also, field emission scanning electron microscopy images reveals that the synthesized ferrite materials
have nanoscale grain sizes.
کلیدواژهها [English]