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Theoretical calculations for L10-MnGa compound indicate a high anisotropy constant, Ku (26 Mergs/cm3) and a saturation magnetization, Ms (116 emu/g), which predict a maximum energy product, (BH)max, of 28 MGOe.
Magnetic field induced martensitic transformation in Fe-Mn-Ga Heusler alloys has been discovered by W. Zhu et. al and T. Omori et. al respectively in 2009 [1, 2]. Thereafter, very few works concerned about this alloy, considering its great potential of giant shape memory strain, large exchange bias and magnetocaloric effect [3]. One obstacle is that the crystal structure transitions of this material...
Chemical ordering has crucial influences on the magnetic and other properties of Heusler alloys [1, 2]. Recently, theoretical investigations predict that highly ordered Fe2CrAl with L21 structure exhibits a half-metallic property with spin polarization of 82%[1]. However, other calculations based on experimental lattice parameters show a non-half-metallic property[2]. Additionally, the theoretical...
Rare earth-cobalt based magnetic materials have attracted considerable attention due to their large anisotropy eld (HA), high saturation magnetizations (Ms), and high Curie temperatures (TC). As the first generation of rare earth-transition metal (RE-TM) based permanent magnet, SmCo5 possesses extraordinary high anisotropy led over 240 kOe, and nanocrystalline SmCo5 magnet bears coercivity as high...
As one of the most important kinds of distributed generation systems, the micro turbine generation system can be flexibly installed near the end user, and becomes an important trend of development in DGS gradually. The high speed permanent magnetic generator (HSPMG) can be properly applied in a micro turbine generation system and benefits the system from high efficiency, high power density, simple...
This paper discusses a thermal reliability testing experiment and failure analysis (FA) in 32nm SOI Si technology chip packages. Thermal performance of the TIM materials is monitored and physical failure analysis is performed on test vehicle packages post thermal reliability test. Thermomechanical modeling is conducted for different test conditions. TIM thermal degradation is observed at the chip...
InSbN alloys are the new narrow bandgap semiconductors capable of broadband and long wavelength infrared photodetection. This paper reports the annealing conditions on the properties and quality of InSbN alloys, fabricated by multi-step ion implantation. The InSbN samples were annealed at different annealing methods, temperatures, and periods of time. They were characterized by various techniques,...
High quality InSb and InSbN alloys were grown epitaxially on InSb (100) by metal-organic chemical vapor deposition. Low temperature photoluminescence spectra of InSb epilayers revealed that in addition to the main band-to-band emission around 5.4 μm, an emission peak around 5.87 μm was also be observed. Our results indicate that the low energy emission peak was originated from the antisite SbIn defects...
This paper describes an automated in-vehicle field measurement systems that can be used to acquire 3D electric field distribution generated from wireless antenna sources placed within a passenger vehicle. One prototype is made out of metal and another Delrin. Comparisons between simulated and measured 2D field distribution within a simple cavity correlate well at 870 MHz. Measurements made within...
InSbN p-n junctions are fabricated by direct implantation of N+ and Mg+ into InSb wafers and their electrical and optical properties are characterized. It is found that high quality p-n junctions can be formed and they can absorb photons to form photocurrent. Furthermore, the peak and cut-off wavelengths absorbed can be controlled by monitoring the incorporated nitrogen and the measured peak wavelengths...
Diffusive gradients in thin films (DGT) is a dynamic, in situ measuring technique that can be used to supply diverse information on concentrations and behaviour of solutes. When deployed in soils and sediments, quantitative interpretation of DGT measurements requires the use of a numerical model. An improved version of the DGT induced fluxes in soils and sediments model (DIFS), working in two dimensions...
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