Point defects in annealed B2-phase FeAl samples in the range 47-53 at.% Fe were studied using 57Fe Mössbauer spectroscopy. Spectra were analyzed using local environment models according to which point defects in atomic shells close to probe atoms induce shifts in the nuclear monopole interaction. For well-annealed samples, better results were obtained assuming only the presence of FeAl antisite...

A carbon tool steel plate was coated with an aluminum foil a thickness of 100 μm by explosive welding. This aluminum-coated heat-treated in the temperature range 973−1273 K for up to 3.6 ks atmosphere form Fe-Al alloy layer on surface. The basically composed Fe2Al5, two kinds FeAl (Al-rich and Fe-rich FeAl), Fe3Al containing (Fe3Al(C)) ferrite stabilized diffusion (α-Fe(Al)). FeAl2 also detecte...

The linear cryptanalysis proposed by Matsui is one of the most effective attacks on block ciphers, and he demonstrated an experimental cryptanalysis against DES at CRYPTO 1994. In this paper, we show how to optimize the linear cryptanalysis on modern microprocessors. Nowadays, there are two methods of implementing the linear cryptanalysis. Method 1 reduces the time complexity by reducing the nu...

Soil properties are important factors modifying metal bioavailability to ecological receptors. Twenty-one soils with a wide range of soil properties (USA; http://soils.usda.gov/technical/classification/taxonomy/) were amended with a single concentration of Pb (2,000 mg/kg) to determine the effects of soil properties on Pb bioavailability and toxicity to earthworms. Earthworm mortality ranged fr...

A two stage process including a sintering under a cyclic loading is proposed as an alternative fabrication method of dense FeAl intermetallics from elemental powder mixtures. The first stage (pre-sintering) is conducted at two temperature values (620 °C and 670 °C, respectively) under a static and a cyclic loading with a frequency of 20, 40 and 60 Hz. The second one includes a pressureless sint...

To achieve a large terahertz (THz) amplitude from spintronic THz emitter (STE), materials with 100\% spin polarisation such as Co-based Heusler compounds the ferromagnetic layer are required. However, these known to loose their half-metallicity in ultrathin film regime, it is difficult L2$_1$ ordering, which has become bottleneck for growth. Here, successful deposition using room temperature DC...

With the recent development of a number of new ciphers, especially block ciphers, there is a need for a set of tools to help analyse them, in order to obtain some comparative measure of their relative security, and to assist in identifying any shortcomings in their design. This project uses a number of tests to provide a better determination of a cipher's capabilities than previous attempts, an...

Electromagnetic pulse welding is a new promising method for solid-state joining of dissimilar materials. However, little understanding the dynamic phenomena that leads interface morphology and intermetallic compounds to change. Initially, using Ansys Maxwell proved eddy current heat had softening effect on aluminum alloy, could press into stainless steel in semi-melted state. IMCs layer transfe...

A new endstation has recently been commissioned at 6-m toroidal grating monochromator beamline to perform high-resolution photoemission studies in the photon energy range of 10–180 eV. The new endstation is equipped with Phoibos-150 analyzer with a channelplate and charge coupled device (CCD) camera readout to measure the kinetic energy of the electron and its emission angle simultaneously. The...