Simon Walters
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View article: The Influence of Structural Relaxation on the Holstein-Primakoff Paraprocess
The Influence of Structural Relaxation on the Holstein-Primakoff Paraprocess Open
Structural relaxations play a large role in forming the properties of magnetic materials. In amorphous alloys, which are metastable materials, obtaining a relatively stable structure requires a properly designed thermal treatment process. …
View article: EraseAnything: Enabling Concept Erasure in Rectified Flow Transformers
EraseAnything: Enabling Concept Erasure in Rectified Flow Transformers Open
Removing unwanted concepts from large-scale text-to-image (T2I) diffusion models while maintaining their overall generative quality remains an open challenge. This difficulty is especially pronounced in emerging paradigms, such as Stable D…
View article: An Ensemble Approach for Brain Tumor Segmentation and Synthesis
An Ensemble Approach for Brain Tumor Segmentation and Synthesis Open
The integration of machine learning in magnetic resonance imaging (MRI), specifically in neuroimaging, is proving to be incredibly effective, leading to better diagnostic accuracy, accelerated image analysis, and data-driven insights, whic…
View article: Influence of the Spin Wave Stiffness Parameter in Amorphous Materials on Saturation Magnetisation Value
Influence of the Spin Wave Stiffness Parameter in Amorphous Materials on Saturation Magnetisation Value Open
Depending on their other constituent elements, Fe-based amorphous materials can exhibit good soft magnetic properties. By determining the directional coefficient b for the relationship of µ0M(µ0H)1/2 according to the best linear fit, it is…
View article: Magnetic Migration Delays in Fe-Based Amorphous Alloys
Magnetic Migration Delays in Fe-Based Amorphous Alloys Open
The amorphous state is characterized by metastability, which results in structural relaxation even at low temperatures.These relaxations contribute to the magnetic properties of amorphous alloys, such as the value of the coercive field, lo…
View article: Migratory Nature of the Disaccommodation Phenomenon Depending on the Relaxation Time
Migratory Nature of the Disaccommodation Phenomenon Depending on the Relaxation Time Open
One of the characteristics of the amorphous state is metastability, which results in structural relaxation even at low temperatures.These relaxations contribute to the magnetic properties of amorphous alloys, such as the value of the coerc…
View article: Magnetic Viscosity in Amorphous Alloys Showing Magnetically Soft Properties
Magnetic Viscosity in Amorphous Alloys Showing Magnetically Soft Properties Open
The phenomenon of magnetic viscosity can be observed when measuring losses on remagnetization.During magnetization of a ferromagnetic with alternating current, apart from the losses caused by magnetization and eddy currents, an additional …
View article: Change in Value of Effective Anisotropy of FeCoB Amorphous Alloys, Depending on Chemical Composition
Change in Value of Effective Anisotropy of FeCoB Amorphous Alloys, Depending on Chemical Composition Open
The magnetisation process of amorphous materials is similar to that of crystalline materials and consists of four stages. Each step influences the formation of the primary magnetisation curve. By using measurements in the “easy,” “intermed…
View article: Investigation into Effect of Cooling Rate on Magnetic Properties of Alloys that Are Based on FeCoB Matrix
Investigation into Effect of Cooling Rate on Magnetic Properties of Alloys that Are Based on FeCoB Matrix Open
The paper presents the results of tests carried out on samples of FeCoB-based alloys. The samples were produced by a technique involving the injection of each liquid alloy into a copper water-cooled mould. The investigated materials are ch…
View article: Change of Magnetic Saturation Polarisation as a Function of Temperature in Bulk Fe-Based Amorphous Alloys
Change of Magnetic Saturation Polarisation as a Function of Temperature in Bulk Fe-Based Amorphous Alloys Open
This paper presents the results of research on the magnetic saturation polarisation, as a function of temperature, for rapidly-cooled iron alloys with an amorphous structure. The rapidly-cooled Fe-based amorphous alloys are characterised b…
View article: Total Core Losses of Fe<sub>70</sub>Y<sub>5</sub>Nb<sub>x</sub>Mo<sub>5-x</sub>B<sub>20</sub> Bulk Amorphous Fe-Based Alloys
Total Core Losses of Fe<sub>70</sub>Y<sub>5</sub>Nb<sub>x</sub>Mo<sub>5-x</sub>B<sub>20</sub> Bulk Amorphous Fe-Based Alloys Open
Remagnetisation losses are one of the most important performance parameters of materials designed for the production of low-loss transformer cores. Classical Fe–Si alloys are characterised by losses of a few W/kg. However, the crystal stru…
View article: Effect of Y on Formation of Hard Magnetic Phases in Fe-Matrix Alloys
Effect of Y on Formation of Hard Magnetic Phases in Fe-Matrix Alloys Open
In this work, the structural and magnetic properties of rapidly-cooled alloys Fe60Co10Y5+xZr5-xB20 were investigated. The chemical composition of the alloy and manufacturing parameters were selected to obtain a partially-crystallised struc…
View article: The Influence of Nb and Mo Content on the Magnetisation Process of Bulk Amorphous Alloys Based on Fe
The Influence of Nb and Mo Content on the Magnetisation Process of Bulk Amorphous Alloys Based on Fe Open
The defects, present in ferromagnetic alloys with amorphous structure, have a major impact on the magnetic properties of these alloys. These defects are present in the forms of point and linear defects. There is no direct method allowing f…
View article: Influence of Co and Zr Content on Creation of Crystalline Phases in Rapidly-Cooled, Injection-Cast Alloys Fe<sub>70</sub>Zr<sub>8-x</sub>Co<sub>x</sub>Nb<sub>2</sub>B<sub>20</sub> (where x=0, 2, 4, 6 or 8)
Influence of Co and Zr Content on Creation of Crystalline Phases in Rapidly-Cooled, Injection-Cast Alloys Fe<sub>70</sub>Zr<sub>8-x</sub>Co<sub>x</sub>Nb<sub>2</sub>B<sub>20</sub> (where x=0, 2, 4, 6 or 8) Open
Rapid solidification techniques allow the manufacture of nanocrystalline alloys using a single-stage production process. There is an issue with the reproducibility of this process. However, careful selection of the chemical composition of …
View article: The Process of Magnetizing FeNbYHfB Bulk Amorphous Alloys in Strong Magnetic Fields
The Process of Magnetizing FeNbYHfB Bulk Amorphous Alloys in Strong Magnetic Fields Open
The structure of amorphous alloys still has not been described satisfactorily due to the lack of direct methods for observing structural defects. The magnetizing process of amorphous alloys is closely related to its disordered structure. T…
View article: The Total Core Losses in Bulk Amorphous Rods of Fe<sub>60</sub>Co<sub>10</sub>Y<sub>8-x</sub>Ni<sub>2+x</sub>B<sub>20</sub> Alloys (Where x=0, 1)
The Total Core Losses in Bulk Amorphous Rods of Fe<sub>60</sub>Co<sub>10</sub>Y<sub>8-x</sub>Ni<sub>2+x</sub>B<sub>20</sub> Alloys (Where x=0, 1) Open
As part of this work, structural investigations were carried out on rapidly-cooled alloys with the following chemical compositions: Fe60Co10Y8−xNi2+xB20 (where x = 0, 1). X-ray diffraction studies confirmed that the tested materials have a…
View article: Microstructure and Soft Magnetic Properties of Fe-Zr-(Pt)-Nb-Cu-B Amorphous Alloys
Microstructure and Soft Magnetic Properties of Fe-Zr-(Pt)-Nb-Cu-B Amorphous Alloys Open
This paper presents the results of investigations into the microstructure and magnetic properties of Fe 86 Zr 7 Nb 1 Cu 1 B 5 , Fe 82 Zr 7 Nb 2 Cu 1 B 8 and Fe 81 Pt 5 Zr 7 Nb 1 Cu 1 B 5 alloys. The alloys were investigated in their as-que…
View article: Structural Relaxation in the Amorphous Alloys: FeMeMoCrNbB (where Me = Ni or Co)
Structural Relaxation in the Amorphous Alloys: FeMeMoCrNbB (where Me = Ni or Co) Open
In this paper, the results of structural and magnetic investigations are presented for the following amorphous alloys: FeMeMoCrNbB (where Me = Ni or Co). The structural investigations were performed using X-ray diffractometry. It was found …
View article: Emerging X-by-Wire capabilities for military crew and platform protection
Emerging X-by-Wire capabilities for military crew and platform protection Open
Improvised Explosive Devices (IEDs) have claimed many lives during recent wars. The response from military vehicle designers has been to provide more and more armour. However, this may not be the best long-term solution, as, amongst other …
View article: On the Optimal Node Ratio between Hidden Layers: A Probabilistic Study
On the Optimal Node Ratio between Hidden Layers: A Probabilistic Study Open
Two-hidden layer feedforward neural networks (TLFNs) have been shown to outperform single-hidden-layer neural networks (SLFNs) for function approximation in many cases.However, their added complexity makes them more difficult to find.Given…
View article: Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons
Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons Open
The paper presents the results of structural and magnetic properties and thermal stability for a group of functional materials based on Fe 61 Co 10 Zr 2.5 Hf 2.5 Me 2 W 2 B 20 (where Me = Mo, Nb, Ni or Y). Samples were obtained in the form…
View article: Influence of 1% Addition of Nb and W on the Relaxation Process in Classical Fe-Based Amorphous Alloys
Influence of 1% Addition of Nb and W on the Relaxation Process in Classical Fe-Based Amorphous Alloys Open
This paper features investigations into the influence of small additions of alloying elements on: structure, as well as the temporal and thermal stability of magnetic properties, and the disaccommodation effect, for the following amorphous…