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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Ca와 Zr을 소량 첨가한 나노결정 Fe-Si-B-Cu계 합금의 미세조직변화와 자기적특성
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안수봉, 장수환, 박원욱, 손근용
Korean J. Met. Mater.
2021;59(3):168-176. Published online 2021 Feb 19
DOI:
https://doi.org/10.3365/KJMM.2021.59.3.168
Abstract
Nanocrystalline Fe-Si-B-Nb-Cu Finemet alloys show low saturation magnetic flux density compared to amorphous Fe-Si-B alloys. In the Fe-Si-B-Cu base amorphous alloys, Cu atoms form clusters which act as heterogeneous nucleation sites for α-Fe crystals. The addition of Ca element atoms, distributed along grain boundaries, helps inhibit grain growth and increase.....
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Web of Science 2
Crossref 2
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Korean J. Met. Mater.
2019;57(6):352-359. Published online 2019 May 16
DOI:
https://doi.org/10.3365/KJMM.2019.57.6.352
Abstract
Electrical steel is a soft magnetic steel material used in electric devices such as transformers and motors. The performance of these electric devices is primarily related to the magnetic properties of electrical steel, and the assessment of the magnetic properties of electrical steel has been considered an important topic. We.....
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Web of Science 4
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퍼멀로이 분말이 혼합된 철계 나노결정립 분말코어의 성형밀도와 연자성 특성에 관한 연구
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신정훈, 정영목, 손근용, 박원욱
Korean J. Met. Mater.
2017;55(9):645-650. Published online 2017 Aug 30
DOI:
https://doi.org/10.3365/KJMM.2017.55.9.645
Abstract
In this paper, the soft magnetic properties and compaction density of Fe-Si-B-Nb-Cu nanocrystalline powder cores, mixed with two kinds of permalloy powders (Ni
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Fe
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or Ni
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Fe
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), have been closely studied. Permalloy powders having an average diameter of 4
μ
m were added in the range of 5 to 15 wt%, and the powder.....
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스크린 인쇄공정으로 제조한 그리드 전도막의 전자기 노이즈 흡수특성
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김민성, 김성수
Korean J. Met. Mater.
2017;55(8):576-580. Published online 2017 Aug 1
DOI:
https://doi.org/10.3365/KJMM.2017.55.8.576
Abstract
To realize focused design near-field conduction noise absorbers for sub-GHz frequencies, this study proposes screen-printed conductive grid films. The films’ advantages include large-scale production and easy control of electrical properties. A conductive grid film with a resistance value of approximately 70 Ω was screen printed on polyimide film substrate and.....
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변형된 사각 루프 주파수 선택 표면의 인덕턴스, 커패시턴스 계산 및 전파흡수특성
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류전, 김성수
Korean J. Met. Mater.
2017;55(6):412-418. Published online 2017 Jun 1
DOI:
https://doi.org/10.3365/KJMM.2017.55.6.412
Abstract
The square loop (SL) is the typical pattern of a frequency selective surface (FSS) with high inductance (L) and capacitance (C). In this study, modified patterns including split square loop FSS (SSL-FSS) and I-type FSS (I-FSS) are proposed, and their L and C values were estimated using the equivalent circuit.....
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Crossref 1
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