Structure of Fe-Based Metallic Glass after Crystallization Process

Nowosielski, R.; Babilas, R.; Dercz, Grzegorz; Pająk, L.

doi:10.4028/www.scientific.net/ssp.163.165

Cited by 22 publications

(28 citation statements)

References 4 publications

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“…The welding temperature of the Al alloy is between 400 C and 450 C during the FSW. 14) Accordingly, the Fe-based metallic glass particle was used because its glass transition temperature 15,16) is higher than the welding temperature of the Al alloy and the oxidation does not easily occur. The base material was pure Al plates (1050-H24).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Fe-Based Metallic Glass Particle Reinforced Al-Based Composite Materials by Friction Stir Processing

et al. 2011

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Fe 72 B 14:4 Si 9:6 Nb 4 metallic glass particles and pure Fe particles were separately dispersed into the pure aluminum by the friction stir processing. The microstructure and mechanical properties of the stir zone were analyzed using XRD, SEM, TEM and Vickers hardness tests. As a result, it was found that the Fe metallic glass and pure Fe particles can be uniformly dispersed into the pure aluminum by friction stir processing and the mechanical properties of the stir zone can be improved due to the formation of precipitates.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Fe-Based Metallic Glass Particle Reinforced Al-Based Composite Materials by Friction Stir Processing

et al. 2011

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“…Barium hexaferrite (BaFe12O19) sudah dikenal sebagai material magnet permanen dan merupakan salah satu material yang paling banyak digunakan dibidang media perekaman magnetik, yang tidak dapat dengan mudah diganti dengan magnet lain [1,2,3]. Dari sudut pandang ilmiah, dan aplikasi teknologi, barium hexaferrite menyajikan sesuatu sifat khusus, seperti: remanen tinggi dan koersivitas, stabilitas termal, listrik dan kimia [4,5].…”

Section: Pendahuluanunclassified

PENGARUH SUBSITUSI ION (TI2+,MN4+) terhadap UKURAN PARTIKEL dan SIFAT MAGNET dari BARIUM HEKSAFERRIT DENGAN METODA MILLING dan ULTRASONIK TEKANAN TINGGI

Novizal

Sasito

Manawan

2016

SPEKTRA

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AbstrakTelah dibuat material BaFe12-2x TixMnxO19 ferrit hasil subsitusi dari BHF dengan (Ti 2+ -Mn 4+ ) untuk variasi komposisi x = 0,0, 0,2, 0,4, 0,6 dan 0,8. Material diproses dengan metoda Milling dan dilanjutkan dengan sonikasi. Dilakukan analisa terhadap ukuran partikel dan sifat magnet dari material dengan menggunakan peralatan PSA (particle size analyzer), XRD (X-ray diffraction) dan Permagraph EP.3 magnetometer. Dari sampel yang dianalisa dengan XRD diperoleh ukuran Kristal dibawah 70 nm untuk semua sampel, dari PSA didapat ukuran partikel berkisar 200-400 nm, dari data ini berarti setiap butir partikel merupakan polikristalin. Dilakukan sonikasi selama 6 jam dan diperoleh distribusi partikel untuk x = 0.0 berkisar 49,21 nm dan untuk x = 0,6 dan 0,8 berkisar 120,2 -209,5 nm. Proses ini menunjukkan bahwa proses sonikasi bisa memperkecil ukuran partikel. Sifat magnetik yang dikarakterisasi menggunakan magnetometer menunjukkan magnetisasi saturasi meningkat hingga komposisi x = 0,4 dan penurunan untuk substitusi lebih lanjut, sedangkan nilai koersivitas tetap menurun monoton dengan meningkatnya substitusi. Penurunan ukuran partikel dari 200-50 nm, memberi perubahan terhadap sifat magnet material dari hard menjadi soft magnet dengan koersivitas , tertera pada table 2.Kata-kata kunci: BHF, substitusi, mechanical alloying, sonikasi, nanopartikel, saturasi, koersivitas. AbstractThis research has been made on the material BaFe12-2x TixM xO19 ferrite substituted with (Ti 2+ -Mn 4+ ) with variation of composition x = 0.0, 0.2, 0.4, 0.6 and 0.8. by sonication. Analyzing the particle size and magnetic properties of a material using equipment PSA (particle size analyzer), XRD (X-ray diffraction) and Permagraph EP.3 magnetometer. The result of the XRD analyzed obtained crystal size below 70 nm for all samples, obtained from the PSA particle size range 200-400 nm, from the results of this means that every item is a polycrystalline particles. The prosesing sonication for 6 hours and the particle distribution obtained for x = 0.0 nm and ranges from 49.21 to x = 0.6 and 0.8 range 120,2-209.5 nm. This process shows that the sonication process could reduce the size of the particles. Magnetic properties were characterized using a magnetometer showed saturation magnetization rises to the composition x = 0.4 and decline to further substitution, while the value of coercivity permanent decreases monotonically with increasing substitution. So that decreasing particle size of 200-50 nm, giving a change to the magnetic properties of the hard material becomes soft magnetic coercivity, listed in Table 2.

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“…The bulk density measurement, shrinkage, and magnetic properties of the sintered samples were being observed and analyzed. Theoretically, the BaFe 12 O 19 density is about 5.10-5.56 g/cm 3 [7]; however, according to the comparison value between the experimental and theoretical density, the densification after sintering at 1150 o C only 88.86% achieved due to particle size or compression pressure. A hundred percent densification value can be achieved by reducing the BaFe 12 O 19 powder particle size to submicron or nano size.…”

Section: Introductionmentioning

confidence: 97%

Microstructure, Physical Properties, and Magnetic Flux Density Analysis of Permanent Magnet BaFe₁₂O₁₉using Milling and Sintering Preparation Methods

Sardjono

Супрапеди

Muljadi

et al. 2016

J. Phys.: Conf. Ser.

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Abstract. The purpose of this experiment is to analyze the influence of sintering temperature to the microstructure, physical, and magnetic properties of BaFe 12 O 19 materials. The permanent magnet BaFe 12 O 19 was made by using milling and sintering method, BaFe 12 O 19 commercial powder was used as the raw material in this experiment. The raw material was pulverized by using ball mill for 15 hours and compacted at 400 MPa pressure to obtain a 16mm diameter and 4mm thick pellet. The pellet was sintered with 10 o

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Structure of Fe-Based Metallic Glass after Crystallization Process

Cited by 22 publications

References 4 publications

Fabrication of Fe-Based Metallic Glass Particle Reinforced Al-Based Composite Materials by Friction Stir Processing

Fabrication of Fe-Based Metallic Glass Particle Reinforced Al-Based Composite Materials by Friction Stir Processing

PENGARUH SUBSITUSI ION (TI2+,MN4+) terhadap UKURAN PARTIKEL dan SIFAT MAGNET dari BARIUM HEKSAFERRIT DENGAN METODA MILLING dan ULTRASONIK TEKANAN TINGGI

Microstructure, Physical Properties, and Magnetic Flux Density Analysis of Permanent Magnet BaFe₁₂O₁₉using Milling and Sintering Preparation Methods

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Structure of Fe-Based Metallic Glass after Crystallization Process

Cited by 22 publications

References 4 publications

Fabrication of Fe-Based Metallic Glass Particle Reinforced Al-Based Composite Materials by Friction Stir Processing

Fabrication of Fe-Based Metallic Glass Particle Reinforced Al-Based Composite Materials by Friction Stir Processing

PENGARUH SUBSITUSI ION (TI2+,MN4+) terhadap UKURAN PARTIKEL dan SIFAT MAGNET dari BARIUM HEKSAFERRIT DENGAN METODA MILLING dan ULTRASONIK TEKANAN TINGGI

Microstructure, Physical Properties, and Magnetic Flux Density Analysis of Permanent Magnet BaFe12O19using Milling and Sintering Preparation Methods

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Microstructure, Physical Properties, and Magnetic Flux Density Analysis of Permanent Magnet BaFe₁₂O₁₉using Milling and Sintering Preparation Methods