Improved corrosion resistance of Co,Al-alloyed NdFeB magnetic nanostructures processed by microwave synthesis techniques

Improved corrosion resistance of Co,Al-alloyed NdFeB magnetic nanostructures processed by microwave synthesis techniques

Co,Al-alloyed NdFeB nanostructures were synthesized by microwave combustion, followed by the reduction-diffusion process. Al and Nd substitution of Fe improved the corrosion resistance of nanostructured Nd 20 Fe 54 Co 15 Al 3 B 8 . The corrosion resistance value was comparable to those of sintered N...

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Bibliographic Details
Main Authors: Parmar, Harshida, Xiao, Tan, Yaoying, Z., Chaudhary, Varun, Peng, Dongdong, Huang, Yizhong, Ramanujan, Raju V.
Other Authors: School of Materials Science and Engineering
Format: Journal Article
Language:English
Published: 2020
Subjects:
Engineering::Materials
Corrosion
Iron
Online Access:https://hdl.handle.net/10356/145531
Description
Summary:Co,Al-alloyed NdFeB nanostructures were synthesized by microwave combustion, followed by the reduction-diffusion process. Al and Nd substitution of Fe improved the corrosion resistance of nanostructured Nd 20 Fe 54 Co 15 Al 3 B 8 . The corrosion resistance value was comparable to those of sintered NdFeB magnets. X-ray diffraction and TEM revealed a multiphase system and the presence of Nd-rich phase. The 2 μm-thick Ni plating improved corrosion potential to -0.77 and -0.74 V, respectively, and current density to 329 and 144 μA/cm 2 , respectively. The 10 μm-thick Ni plating provided a high degree of protection against corrosion.

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