Results 81 to 90 of about 795,626 (294)

Efficient Process Development for Laser Powder Bed Fusion of a Soft‐Magnetic Metallic Glass Composite

open access: yesAdvanced Engineering Materials, EarlyView.
Iron‐based metallic glass alloys exhibit excellent soft‐magnetic properties, and unprecedented geometrical freedom in the design of soft‐magnetic metallic glass components is made possible by additive manufacturing. An efficient workflow for developing parameters for laser‐based powder bed fusion of a Fe‐based metallic glass alloy is presented along ...
Julia Löfstrand   +7 more
wiley   +1 more source

Magnetoresistance of Granular Ferromagnets - Observation of a Magnetic Proximity Effect?

open access: yes, 1998
We have observed a superparamagnetic to ferromagnetic transition in films of isolated Ni grains covered by non-magnetic overlayers. The magnetoresistance (MR) of the films was measured as a function of the overlayer thickness.
A. Frydman   +26 more
core   +1 more source

Magnetization dynamics in magnetically coupled heterostructures [PDF]

open access: yes, 2009
This thesis focusses on the influence of interlayer coupling on the magnetization dynamics of heterostructure systems. This topic has been investigated by time-resolved photoemission electron microscopy (PEEM) using a pump-probe approach. Magnetic and chemical contrast is provided by the llumination with circularly polarized x-rays due to the x-ray ...
openaire   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Development and Application of a Gyro Steady-State Drilling Tool

open access: yesShiyou jixie, 2023
Due to the formation heterogeneity,unsteady pump rate,high weight on bit and fast rotation,drill strings are associated with multiple kinds of vibration.Severe vibration accelerates the bit failure,increases the tripping operations,and thus impacts the ...
Meng Xiangbo
doaj  

Controllable exchange coupling between two singlet-triplet qubits

open access: yes, 2012
We study controllable exchange coupling between two singlet-triplet qubits. We start from the original second quantized Hamiltonian of a quadruple quantum dot system and obtain the effective spin-spin interaction between the two qubits using the ...
C. P. Slichter   +7 more
core   +1 more source

Magnetically Coupled Impedance-Source Inverters

open access: yesIEEE Transactions on Industry Applications, 2012
Z-source inverters are a new class of inverters proposed with output voltage or current buck-boost ability. Despite their general attractiveness, there are some present limitations faced by existing Z-source inverters, most of which are linked to their requirement for low modulation ratio at high input-to-output gain and the presence of an impedance ...
Loh, Poh Chiang, Blaabjerg, Frede
openaire   +4 more sources

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar   +5 more
wiley   +1 more source

Interlayer Exchange Coupling Mediated by Valence Band Electrons

open access: yes, 2000
The interlayer exchange coupling mediated by valence band electrons in all-semiconductor IV-VI magnetic/nonmagnetic superlattices is studied theoretically.
A. Stachow-Wojcik   +24 more
core   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya   +3 more
wiley   +1 more source

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