It has showed in experiments that aluminum nano-polycrystalline substances are ferromagnetic. A magnetic hysteresis curve measured by SQUID suggested the ferromagnetism. Al bulk is normally thought to be non-magnetic body. Authors also fabricated core inductors using Al nano-polycrystalline substances and measured the inductances of cored inductors with frequency dependence. Al nano-polycrystalline substance was fabricated by sintering Al nanopaste with Al nanoparticles. Al nanoparticles were prepared by using laser ablation in liquid. The structures and components of the sintered Al nano-polycrystalline substances were analyzed by SEM and EDX. It has been shown that inductor using Al nano-polycrystalline substance with low volume resistivity, which is the same order of metal, works at low frequencies below 500 Hz, while inductor using substance with high volume resistivity works at high frequency of 5 MHz. Our analysis of Al nano-polycrystalline substance with high volume resistivity revealed relative permittivity of 7 at frequency of 1 MHz. It has been expected that these inductors to work at frequency of a few GHz because the magnetic resonance frequency of the Al nano-polycrystalline substances were evaluated to be 5.6 GHz and the high volume resistivity results in suppressing the eddy currents.
| DOI | 10.11648/j.jeee.20170503.13 |
| Published in | Journal of Electrical and Electronic Engineering (Volume 5, Issue 3, June 2017) |
| Page(s) | 98-103 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Al Nano-polycrystalline, Laser Ablation in Liquids, Core Inductors, High Frequency, Ferro-magnetic, SQUID
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APA Style
Mitsuru Inada, Yukio Iida, Taku Saiki, Shinichirou Masuda. (2017). Aluminum Nano-polycrystalline Substance with Ferromagnetics and Application to High-Frequency Core Inductor. Journal of Electrical and Electronic Engineering, 5(3), 98-103. https://doi.org/10.11648/j.jeee.20170503.13
ACS Style
Mitsuru Inada; Yukio Iida; Taku Saiki; Shinichirou Masuda. Aluminum Nano-polycrystalline Substance with Ferromagnetics and Application to High-Frequency Core Inductor. J. Electr. Electron. Eng. 2017, 5(3), 98-103. doi: 10.11648/j.jeee.20170503.13
AMA Style
Mitsuru Inada, Yukio Iida, Taku Saiki, Shinichirou Masuda. Aluminum Nano-polycrystalline Substance with Ferromagnetics and Application to High-Frequency Core Inductor. J Electr Electron Eng. 2017;5(3):98-103. doi: 10.11648/j.jeee.20170503.13
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Download@article{10.11648/j.jeee.20170503.13,
author = {Mitsuru Inada and Yukio Iida and Taku Saiki and Shinichirou Masuda},
title = {Aluminum Nano-polycrystalline Substance with Ferromagnetics and Application to High-Frequency Core Inductor},
journal = {Journal of Electrical and Electronic Engineering},
volume = {5},
number = {3},
pages = {98-103},
doi = {10.11648/j.jeee.20170503.13},
url = {https://doi.org/10.11648/j.jeee.20170503.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20170503.13},
abstract = {It has showed in experiments that aluminum nano-polycrystalline substances are ferromagnetic. A magnetic hysteresis curve measured by SQUID suggested the ferromagnetism. Al bulk is normally thought to be non-magnetic body. Authors also fabricated core inductors using Al nano-polycrystalline substances and measured the inductances of cored inductors with frequency dependence. Al nano-polycrystalline substance was fabricated by sintering Al nanopaste with Al nanoparticles. Al nanoparticles were prepared by using laser ablation in liquid. The structures and components of the sintered Al nano-polycrystalline substances were analyzed by SEM and EDX. It has been shown that inductor using Al nano-polycrystalline substance with low volume resistivity, which is the same order of metal, works at low frequencies below 500 Hz, while inductor using substance with high volume resistivity works at high frequency of 5 MHz. Our analysis of Al nano-polycrystalline substance with high volume resistivity revealed relative permittivity of 7 at frequency of 1 MHz. It has been expected that these inductors to work at frequency of a few GHz because the magnetic resonance frequency of the Al nano-polycrystalline substances were evaluated to be 5.6 GHz and the high volume resistivity results in suppressing the eddy currents.},
year = {2017}
}
TY - JOUR T1 - Aluminum Nano-polycrystalline Substance with Ferromagnetics and Application to High-Frequency Core Inductor AU - Mitsuru Inada AU - Yukio Iida AU - Taku Saiki AU - Shinichirou Masuda Y1 - 2017/06/21 PY - 2017 N1 - https://doi.org/10.11648/j.jeee.20170503.13 DO - 10.11648/j.jeee.20170503.13 T2 - Journal of Electrical and Electronic Engineering JF - Journal of Electrical and Electronic Engineering JO - Journal of Electrical and Electronic Engineering SP - 98 EP - 103 PB - Science Publishing Group SN - 2329-1605 UR - https://doi.org/10.11648/j.jeee.20170503.13 AB - It has showed in experiments that aluminum nano-polycrystalline substances are ferromagnetic. A magnetic hysteresis curve measured by SQUID suggested the ferromagnetism. Al bulk is normally thought to be non-magnetic body. Authors also fabricated core inductors using Al nano-polycrystalline substances and measured the inductances of cored inductors with frequency dependence. Al nano-polycrystalline substance was fabricated by sintering Al nanopaste with Al nanoparticles. Al nanoparticles were prepared by using laser ablation in liquid. The structures and components of the sintered Al nano-polycrystalline substances were analyzed by SEM and EDX. It has been shown that inductor using Al nano-polycrystalline substance with low volume resistivity, which is the same order of metal, works at low frequencies below 500 Hz, while inductor using substance with high volume resistivity works at high frequency of 5 MHz. Our analysis of Al nano-polycrystalline substance with high volume resistivity revealed relative permittivity of 7 at frequency of 1 MHz. It has been expected that these inductors to work at frequency of a few GHz because the magnetic resonance frequency of the Al nano-polycrystalline substances were evaluated to be 5.6 GHz and the high volume resistivity results in suppressing the eddy currents. VL - 5 IS - 3 ER -
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