Difference between stress and magnetism relationships of ferromagnetic materials under tensile and compressive stresses

Huang, Gang; Zhang, Qingdong; Yu, M. Y.

doi:10.1016/j.rinp.2021.104572

Cited by 9 publications

(2 citation statements)

References 29 publications

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“…During high-temperature treatment, a molten phase is formed, which initially reduces the porosity of the sample and, during subsequent crystallization, forms regions of localized tensile stress. As is known [ 33 ], tension stresses increase saturation magnetization.…”

Section: Resultsmentioning

confidence: 93%

Synthesis of Superhydrophobic Barium Hexaferrite Coatings with Low Magnetic Hardness

2022

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Using the multifunctional material barium hexaferrite as an example, the prospects for treatment at a quasi-equilibrium low temperature in an open atmosphere to form superhydrophobic magnetic coatings with pronounced crystalline and magnetic anisotropy have been demonstrated for the first time. The relationship between plasma treatment conditions, structural-phase composition, morphology, and superhydrophobic properties of (0001) films of barium hexaferrite BaFe12O19 on C-sapphire is studied. X-ray photoelectron spectroscopy (XPS), X-ray diffractometry (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), as well as magnetometry and moisture resistance analysis, were used as research methods. During plasma treatment with a mass-average temperature of 8–10 kK, intense evaporation and surface melting were observed, and texturing of the deposit along (0001) is found. When the treatment temperature was reduced to 4–5 kK, the evaporation of the material was minimized and magnetic and crystal anisotropy increased. However, the increase in the size of crystallites was accompanied by the transition of oxygen atoms from lattice nodes to interstitial positions. All samples exhibited low coercive fields below 500 Oe, associated with the frustration of the magnetic subsystem. Features of growth of materials with a wurtzite structure were used to form a superhydrophobic coating of barium hexaferrite. Plasma treatment regimes for obtaining self-cleaning coatings are proposed. The use of magnetically hard barium hexaferrite to radically change the properties of a coating is demonstrated herein as an example.

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Section: Resultsmentioning

confidence: 93%

Synthesis of Superhydrophobic Barium Hexaferrite Coatings with Low Magnetic Hardness

2022

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“…As is known, tensile stresses facilitate an increase in the saturation magnetization [15]. Mechanical stresses are maximized in the film plane, thus enhancing the coercive field in the in-plane scanning geometry (Fig.…”

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confidence: 95%

Influence of Plasma Treatment Conditions on Structural-Phase Composition and Magnetic Properties of Barium Hexaferrite (M-type) Films on C-Sapphire

Kh.

A.E.

2022

Technical Physics Letters

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In the work investigated the influence of plasma treatment conditions on the structural-phase composition and magnetic properties of barium hexaferrite films (0001) BaFe12O19 on C-sapphire. Two treatment modes were used: with a weight average plasma temperature of 4-5 kK and 8-10 kK. It has been shown that the films obtained at the low treatment temperature have a pronounced magnetic anisotropy and saturation magnetization of 42 emu/g. The films obtained at high temperature have weak magnetic anisotropy, but have a higher saturation magnetization value of 62 emu/g. All films have low coercive fields of less than 500 Oe, which indicates the low magnetic hardness of barium hexaferrite samples and the possibility of their use as magnetic conductors of transformers, electromagnets, in measuring devices. The presented results demonstrate the promise of the plasma treatment technique in the formation of coatings with high anisotropy. Keywords: barium hexaferrite, sapphire, plasmatron, magnetization.

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A Review of the Electromagnetic Radiation Emission and Magnetic Field Generation in Metallic Materials Under Stress

Anand,

Kumar

2023

Trans Indian Inst Met

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Difference between stress and magnetism relationships of ferromagnetic materials under tensile and compressive stresses

Cited by 9 publications

References 29 publications

Synthesis of Superhydrophobic Barium Hexaferrite Coatings with Low Magnetic Hardness

Synthesis of Superhydrophobic Barium Hexaferrite Coatings with Low Magnetic Hardness

Influence of Plasma Treatment Conditions on Structural-Phase Composition and Magnetic Properties of Barium Hexaferrite (M-type) Films on C-Sapphire

A Review of the Electromagnetic Radiation Emission and Magnetic Field Generation in Metallic Materials Under Stress

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