High-strength and corrosion-resistant Fe/Al2SiO5 soft magnetic composites fabricated by a nanoscale solid-reaction coating method

Ma, Jie; Yuan, Yingbo; Zou, Haihan; Yang, Bai; Zhou, Bohui; Yu, Rong

doi:10.1016/j.jallcom.2022.165174

Cited by 14 publications

(4 citation statements)

References 62 publications

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“…Meanwhile, beads coated with kollicoat have smooth surfaces after the tablet is crushed with low mechanical strength because of low bond areas between the beads. Low tabletability is produced with kollicoatcoating 33 .…”

Section: Fig 5: the Contact Area Between Particles After Coating And ...mentioning

confidence: 99%

Efforts in Improving Tablets’ Tensile Strength With a Coating System and Brittle Excipient: A Review

Ainurofiq,

Wuslatush Sholekah,

Hanifah

et al. 2023

Bulletin of Pharmaceutical Sciences Assiut University

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Tablets are the most in-demand pharmaceutical preparation by pharmaceutical companies or users because they provide the best capabilities from all oral preparations. Maintaining the grade and quality of tablets need to be of great concern. Factors affecting the physical quality of tablets must always be evaluated, including tensile strength. Tensile strength directly affects the process of distribution, storage, disintegration, and dissolution of tablets. Tensile strength problem is often found during tablet production with the wet granulation method, in which overgranulation often occurs, especially in high-shear wet granulation (HSWG). The solution for over granulating is the addition of brittle excipients to form a strong bond when combined, thus increasing tensile strength. An ideal tensile strength may be achieved because the mechanical strength of the tablet is increased proportionally to the increased area of the bond. Another solution to increase tensile strength is by using a coating system using the Multiple Unit Pellet Systems (MUPS). The MUPS coating system often experiences problems such as caking. This problem can be overcome using a coating polymer that is stable on high RH and supports a strong tablet formulation. The solution to the tensile strength problem with the addition of brittle excipients and coating will be reviewed in this article to increase tensile strength.

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Section: Fig 5: the Contact Area Between Particles After Coating And ...mentioning

confidence: 99%

Efforts in Improving Tablets’ Tensile Strength With a Coating System and Brittle Excipient: A Review

Ainurofiq,

Wuslatush Sholekah,

Hanifah

et al. 2023

Bulletin of Pharmaceutical Sciences Assiut University

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“…To overcome these deficiencies, ferromagnetic materials such as ferrite-type systems, Mn-Zn ferrites, Ni-Zn ferrites, and Fe x O y (especially Fe 3 O 4 ) have been considered as the suitable insulating layer [ 8 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Additionally, several studies present the elaboration of SMCs with an inorganic double-insulating layer that enhances heat resistance and enables enhanced magnetic and mechanical performance by high-temperature annealing [ 4 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Fe@Fe3O4/ZnFe2O4 Powders and Their Consolidation via Hybrid Cold-Sintering/Spark Plasma-Sintering

Mesaros,

Neamțu,

Marinca

et al. 2024

Nanomaterials

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Our study is focused on optimizing the synthesis conditions for the in situ oxidation of Fe particles to produce Fe@Fe3O4 core–shell powder and preparation via co-precipitation of ZnFe2O4 nanoparticles to produce Fe@Fe3O4/ZnFe2O4 soft magnetic composites (SMC) through a hybrid cold-sintering/spark plasma-sintering technique. XRD and FTIR measurements confirmed the formation of a nanocrystalline oxide layer on the surface of Fe powder and the nanosized nature of ZnFe2O4 nanoparticles. SEM-EDX investigations revealed that the oxidic phase of our composite was distributed on the surface of the Fe particles, forming a quasi-continuous matrix. The DC magnetic characteristics of the composite compact revealed a saturation induction of 0.8 T, coercivity of 590 A/m, and maximum relative permeability of 156. AC magnetic characterization indicated that for frequencies higher than 1 kHz and induction of 0.1 T, interparticle eddy current losses dominated due to ineffective electrical insulation between neighboring particles in the composite compact. Nevertheless, the magnetic characteristics obtained in both DC and AC magnetization regimes were comparable to those reported for cold-sintered Fe-based SMCs.

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“…The Fe-based soft magnetic composites have received widespread concern due to their excellent magnetic properties, including high permeability, high electrical resistivity, and low core loss [ 3 , 4 , 5 , 6 , 7 , 8 ]. Among these properties, low core loss in a magnetic field is crucial for energy conservation and carbon reduction.…”

Section: Introductionmentioning

confidence: 99%

Novel Functional Soft Magnetic CoFe2O4/Fe Composites: Preparation, Characterization, and Low Core Loss

Wang

Ouyang

et al. 2023

Materials

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In this study, composites CoFe2O4/Fe were successfully synthesized by in situ oxidation, and their composition, structure, and magnetic properties have been investigated. According to the analysis of X-ray photoelectron spectrometry measure results, the cobalt ferrite insulating layer was completely coated on the surface of Fe powder particles. The evolution of the insulating layer during the annealing process has been discussed, which is correlated to effects on the magnetic properties of the composites CoFe2O4/Fe. The amplitude permeability of the composites reached a maximum of 110, and their frequency stability reached 170 kHz with a relatively low core loss of 253.6 W/kg. Therefore, the composites CoFe2O4/Fe has potential application in the field of integrated inductance and high-frequency motor, which is conducive to energy conservation and carbon reduction.

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High-strength and corrosion-resistant Fe/Al2SiO5 soft magnetic composites fabricated by a nanoscale solid-reaction coating method

Cited by 14 publications

References 62 publications

Efforts in Improving Tablets’ Tensile Strength With a Coating System and Brittle Excipient: A Review

Efforts in Improving Tablets’ Tensile Strength With a Coating System and Brittle Excipient: A Review

Preparation of Fe@Fe3O4/ZnFe2O4 Powders and Their Consolidation via Hybrid Cold-Sintering/Spark Plasma-Sintering

Novel Functional Soft Magnetic CoFe2O4/Fe Composites: Preparation, Characterization, and Low Core Loss

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