학술논문
Solvothermal synthesis of high-performance magnetic cobalt nanowires and bonded anisotropic magnets prepared thereof.
Document Type
Article
Author
Source
Subject
*NANOWIRES
*MAGNETIC properties
*MAGNETS
*COBALT
*MAGNETIZATION
*COERCIVE fields (Electronics)
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Language
ISSN
1388-0764
Abstract
In this research, we report the effects of the solvothermal synthesis including the reaction temperature (Tr), reaction time (tr), and hexadecylamine concentrations (HDAc) on the morphology and magnetic properties of Co nanowires (Co NWs). The obtained results reveal the great impact of Tr, tr, and HDAc on magnetic properties of Co NWs and magnets prepared thereof. The best magnetic properties were found in the Co NWs of the aspect ratio m between the length L and diameter D, m = L/D ~ 10 synthesized at Tr = 175 °C, tr = 20 h, and HDAc = 0.6 mmol with the saturation magnetization (Ms) of 146 emu/g and coercivity (iHc) of 4.1 kOe. These Co NWs were used for preparing bonded anisotropic magnet with the mass density ρ = 5.8 g/cm3, Ms = 6.31 kG, Mr = 5.85 kG, iHc = 6.76 kOe, bHc = 5.18 kOe, and energy product (BH)max = 7.74 MGOe. [ABSTRACT FROM AUTHOR]