نتایج جستجو برای: bafe12o19

تعداد نتایج: 137  

Journal: :iranian chemical communication 2016
kamellia nejati shabnam alizade sara samuey zolfaghar rezvani

in the present work, the synthesis of barium hexaferrite (bafe12o19) nanoparticles in thepresence of a large excess amount of oh− anions by the hydrothermal method in the presence and absence of surfactants such as sodium dodecyl benzene sulfonate and triton x-114 was reported. the optimized temperature in the absence of surfactant was determined (200 °c) and then barium hexaferrite nanoparticl...

Journal: :ACS nano 2012
Junli Zhang Jiecai Fu Fashen Li Erqing Xie Desheng Xue Nigel J Mellors Yong Peng

BaFe(12)O(19) single-particle-chain nanofibers have been successfully prepared by an electrospinning method and calcination process, and their morphology, chemistry, and crystal structure have been characterized at the nanoscale. It is found that individual BaFe(12)O(19) nanofibers consist of single nanoparticles which are found to stack along the nanofiber axis. The chemical analysis shows tha...

2010
Simona Ovtar Darja Lisjak

Barium hexaferrite (BaHF) with the chemical formula BaFe12O19 is a hard magnetic material and has high magnetic anisotropy field (MAF), 17 kOe. The easy direction of magnetization corresponds to the crystallographic c-axis and BaHF particles orient in this direction when are exposed to an external magnetic field. Because of the high MAF, a ferromagnetic resonant frequency appears from 45 to 50 ...

Journal: :Metal Indonesia 2022

Penelitian ini bertujuan untuk mensintesis serbuk magnet barium heksaferit (BaFe12O19) dari senyawa klorida menggunakan metode sol-gel dengan variasi waktu aging selama 0 jam, 2 4 jam dan 6 jam. Karakterisasi yang dilakukan pada meliputi pengujian X-Ray Diffraction (XRD) mengetahui fasa terbentuk, Scanning Electron Microscope (SEM) ukuran butir dihasilkan Vibrating Sample Magnetometer (VSM) nil...

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