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

Harshida Parmar; Tan Xiao; Z. Yaoying; V. Chaudhary; Dongdong Peng; Yizhong Huang; R. V. Ramanujan

doi:10.1109/TMAG.2018.2838599

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

Harshida Parmar, Tan Xiao, Z. Yaoying, V. Chaudhary, Dongdong Peng, Yizhong Huang, R. V. Ramanujan^*

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

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 Nd₂₀Fe₅₄Co₁₅Al₃B₈. 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 2μm-thick Ni plating improved corrosion potential to -0.77 and -0.74 V, respectively, and current density to 329 and 144μA/cm², respectively. The 10μm-thick Ni plating provided a high degree of protection against corrosion.

Original language	English
Article number	8385155
Journal	IEEE Transactions on Magnetics
Volume	54
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2018.2838599
Publication status	Published - Nov 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 1965-2012 IEEE.

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Keywords

Corrosion study
nanostructure
NdFeB magnets

Access to Document

10.1109/TMAG.2018.2838599

Cite this

@article{4a9b599f75c649888ef1c2f7fcd36fb7,

title = "Improved corrosion resistance of Co,Al-Alloyed NdFeB magnetic nanostructures processed by microwave synthesis techniques",

abstract = "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 Nd20Fe54Co15Al3B8. 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 2μm-thick Ni plating improved corrosion potential to -0.77 and -0.74 V, respectively, and current density to 329 and 144μA/cm2, respectively. The 10μm-thick Ni plating provided a high degree of protection against corrosion.",

keywords = "Corrosion study, nanostructure, NdFeB magnets",

author = "Harshida Parmar and Tan Xiao and Z. Yaoying and V. Chaudhary and Dongdong Peng and Yizhong Huang and Ramanujan, \{R. V.\}",

note = "Publisher Copyright: {\textcopyright} 1965-2012 IEEE.",

year = "2018",

month = nov,

doi = "10.1109/TMAG.2018.2838599",

language = "English",

volume = "54",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "11",

}

TY - JOUR

T1 - Improved corrosion resistance of Co,Al-Alloyed NdFeB magnetic nanostructures processed by microwave synthesis techniques

AU - Parmar, Harshida

AU - Xiao, Tan

AU - Yaoying, Z.

AU - Chaudhary, V.

AU - Peng, Dongdong

AU - Huang, Yizhong

AU - Ramanujan, R. V.

PY - 2018/11

Y1 - 2018/11

N2 - 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 Nd20Fe54Co15Al3B8. 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 2μm-thick Ni plating improved corrosion potential to -0.77 and -0.74 V, respectively, and current density to 329 and 144μA/cm2, respectively. The 10μm-thick Ni plating provided a high degree of protection against corrosion.

AB - 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 Nd20Fe54Co15Al3B8. 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 2μm-thick Ni plating improved corrosion potential to -0.77 and -0.74 V, respectively, and current density to 329 and 144μA/cm2, respectively. The 10μm-thick Ni plating provided a high degree of protection against corrosion.

KW - Corrosion study

KW - nanostructure

KW - NdFeB magnets

UR - http://www.scopus.com/inward/record.url?scp=85048540208&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048540208&partnerID=8YFLogxK

U2 - 10.1109/TMAG.2018.2838599

DO - 10.1109/TMAG.2018.2838599

M3 - Article

AN - SCOPUS:85048540208

SN - 0018-9464

VL - 54

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 11

M1 - 8385155

ER -

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

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this