Results 71 to 80 of about 2,523,401 (193)

Magnetization fluctuations and magnetic after-effect probed via the anomalous Hall effect

open access: yesPhysical Review Research
Taking advantage of the anomalous Hall effect, we electrically probe low-frequency magnetization fluctuations at room temperature in a thin ferromagnetic Pt/Co/AlO_{x} layer stack with perpendicular magnetic anisotropy. We observe a strong enhancement of
Nadine Nabben   +4 more
doaj   +1 more source

Cobalt‐Based Metallic Glass Microfibers for Flexible Electromagnetic Shielding and Soft Magnetic Properties

open access: yesAdvanced Electronic Materials, Volume 10, Issue 2, February 2024.
A novel method is used to fabricate flexible Co66Fe4Mo2Si16B12 metallic‐glass microfibers for electronics, boasting a hardness of 11.31±0.60 GPa and an elastic modulus of 110.54±11.24 GPa. Their EMI shielding exhibits clear anisotropy with a factor of 5 and up to 25‐fold increased attenuation in the Ku band.
Elham Sharifikolouei   +10 more
wiley   +1 more source

Residual stress prediction in welds via the Barkhausen Noise Technique

open access: yes, 2011
Aim of this study was to evaluate the use of the Barkhausen Noise as a mean to detect the residual stresses developed in the heat-affected zone (HAZ) of mild steel welds.
Sapountzi, K, Kalliroi Sapountzi
core   +1 more source

Highly Efficient Spin Transport in a Paramagnetic Insulator at Room Temperature

open access: yesAdvanced Physics Research, Volume 3, Issue 2, February 2024.
Efficient transmission of magnon‐mediated spin current is a crucial requirement for the development of futural spintronic devices with lower energy dissipation. The efficient spin transport in a paramagnetic insulator is demonstrated at room temperature and under a very weak magnetic field.
Zhaozhao Zhu   +9 more
wiley   +1 more source

Restoration and Transformation: The Response of Shocked and Oxidized Magnetite to Temperature

open access: yesJournal of Geophysical Research: Solid Earth, Volume 129, Issue 2, February 2024.
Abstract Large impact craters on Earth are associated with prominent magnetic anomalies, residing in magnetite of the shocked target rocks and impactites. Shock experiments on magnetite suggest that up to 90% of magnetic susceptibility is lost at pressures >5 GPa, but can be partially restored by post‐shock thermal annealing.
Bruno Daniel Leite Mendes, Agnes Kontny
wiley   +1 more source

Analysis of Surface Roughness Influence in Non-Destructive Magnetic Measurements Applied to Reactor Pressure Vessel Steels

open access: yesApplied Sciences, 2020
The influence of surface roughness on magnetic measurements of Reactor Pressure Vessel Steels was investigated by applying two types of magnetic, non-destructive measurement on nuclear reactor pressure vessel steel samples: magnetic adaptive testing (MAT)
Gábor Vértesy   +5 more
doaj   +1 more source

A Key Contribution for Concrete Durability: Harnessing Force‐Magnetic Coupling for Stress State Detection in Reinforced Concrete Beams

open access: yesStructural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
Over the past 20 years, more than 200 major bridge‐collapsed accidents have occurred during their service life. The durability of reinforced concrete (RC) beams is a serious threat to the safety performance of the structures. To accurately grasp the service performance of RC beams, a four‐point bending loading experiment was conducted on RC rectangular
Yujie Zhang   +6 more
wiley   +1 more source

Influence of the maximum applied magnetic field on the angular dependence of Magnetic Barkhausen Noise in API5L steels

open access: yes, 2016
This work studies the influence of the maximum applied magnetic field on the angular dependence of the energy of the Magnetic Barkhausen Noise signal in three different API5L pipeline steels.
Espina-Hernández, J.H.   +6 more
core   +1 more source

Magnetic hysteresis and Barkhausen noise emission analysis of magnetic materials and composites [PDF]

open access: yes, 2014
Barkhausen emission studies have been used to analyze the effect of residual stresses in ferromagnetic materials. The stresses generated due to mechanical wear and tear, abrasion and prolonged use can also lead to phase changes within the material. These
Prabhu Gaunkar, Neelam
core   +1 more source

Magnetic Barkhausen emission in lightly deformed AISI 1070 steel [PDF]

open access: yes, 2012
The Magnetic Barkhausen Noise (MBN) technique can evaluate both micro- and macro-residual stresses, and provides indication about the relevance of contribution of these different stress components. MBN measurements were performed in AISI 1070 steel sheet
Padovese, L. R.   +7 more
core   +1 more source

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