The article presents the results of studies of the plastic properties of heated porous powder materials in the sediment tests. A technique for determining the transverse dimensions of porous billets is given, which provides their defect-free dynamic hot pressing in the matrix.

Keywords: plastic property of the material, the study of deformability, ductility of the material, transverse deformation, heating temperature, calculation method, dynamic hot pressing, powder billet, transverse size of the workpiece and the matrix, the initial siz

The article presents the results of studies of the plasticity of heated powder materials from the initial porosity during the sediment tests. It was established experimentally that for the selected deformation conditions, the powder of iron powder PZh4S2 with the initial porosity of 20–30% has the greatest plasticity during the draft

Keywords: plasticity, heating temperature, density of samples, specific work of deformation, sediment, measurement of samples, coefficients of height and transverse deformation, porosity, powder billet

In the article we discuss temperature errors caused by non-stationary thermal processes in a thin-film Hall transducer. When solving the heat conduction equation we show the significant influence of effects of Peltier and Seebeck on the Hall voltage measurement results in the current switching mode. A new twenty-step switching currents algorithm for the Hall transducer is proposed. In this algorithm the additional voltages are measured at the absence of current through the transducer. From the additional voltages we estimate the contribution of the temperature drift. It was experimentally shown that for the PHE602117 converter the additive temperature error decreases by 30 times in comparison with the four-step algorithm while reducing performance by 20%.

Keywords: Hall transducer, additive error, Peltier effect, non-stationary processes, thermo-emf., magnetic measurements, current switching

This article provides information about the device for measurement of physical quantities of ferromagnetic materials. Discussed in detail and clearly shows the structure of the device.

Keywords: ferromagnetic materials, parameters, measuring device design, volumetric stressed state

In the article information is presented about plastic properties of the heated porous powder-like materials from ferrous powders at tests on a bend. Dependence of tangential eτ, radial eρ is set and transversal ez deformations from initial porosity of standards and grain-size distribution. Experimental confirmation of hypothesis of flat sections and unchanging position of neutral surface is got at the bend of the heated porous standards.

Keywords: plastic property, heating, porous powder-like material, bend, tangential deformation, radial deformation and transversal deformation

The article presents a description of the nature of the behavior of the fluidized bed consisting of heterogeneous particles, in the apparatus used for drying the dispersed liquid products. Given a description of the features of the experimental setup and methods of processing of obtained results. Describes the characteristic of the observed inhomogeneities of the layer. Shown types formed in the layer of gas bubbles, and describes their coalescence in the layer. Describes the basic mechanisms of coalescence bubbles in a fluidized bed of heterogeneous particles.

Keywords: fluidization, layer, inert, drying, bubble, channel, mode, heterogeneity

It is marked in the article, that at making of details of difficult form powder-like material must thermoforming of powder-like purveyances have high plasticity that would allow for certain technological terms and chart tensely - the deformed state to provide their shaping of zero-defects. Presented taking about the method of test of the heated porous powder-like standards from ferrous powder on a bend. The constructions of press-form are described for cold-press of powder-like standards and adaptation for their dynamic bend in the heated state.

Keywords: test, thermoforming, press-form, heating, porous powder-like standard, adaptation for the bend of standards

There submitted a HF and SHF field energy density measuring technique developed by authors in this work with application of semiconducting laser interferometer measuring an alteration of a glass plate optical thickness while the plate is placed in the sphere of HF or SHF heating. Operability of the technique is demonstrated by measurement of a microwave oven electromagnetic field energy density distribution

Keywords: laser interferometer, temperature measurement, HF and SHF field sensor

  The approximate formulas for determination of planar electromechanical force factor and piezomodule in the disk-form samples without Poisson coefficient evaluation of the smallest (first) frequency equation root are derived. It simplifies procedure of measurements because measurement of frequency of the first overtone isn't required.

Keywords: piezomaterial, disk, planar electromechanical force factor, piezomodule, Poisson coefficient

  Influence of a method of manufacture of porous ceramic frames on the basis of system Lead zirconate titanate (PZT) on their microstructure is set. It is shown that when using a method of formation of the frame based on deleting a porophore, the microstructure of a target product depends as by nature a steam generator, and the sizes of particles of a porophore and piezo-phase. Frames with preferentially open nature of porosity create porophore systems decaying or being sublimed in case of temperature increase.  If the porophore to its thermal destruction or evaporation melts, the ceramic frame will have, preferentially, closed nature of porosity. Within the second of probed methods of porous frames creation based on expansion of an amorphous phase, synthesized within a method volume «chemical construction», samples with diameter of pores from 70-90 nanometers to 450-500 nanometers and the mixed nature of porosity are received.

Keywords: ceramic frames, piezoelectric phases lead zirconate-titanate (PZT), piezoelectric composites with connection 3 - 3 and 3 – 0

The article describes methods allows to control the degree of anisotropy piezoelectric ceramics based on doped phase PbTiO3. As a model of the object has been selected phase of Pb0,76Ca0,24Ti0,94(Cd0,5W0,5)0,06O3. The model phase was obtained by the following methods: by solid state reaction method and the chemical construction. For comparison phases obtained by these methods were used modern analytical research methods (DTA, TGA, XRF, XRD, power and tunneling microscopy, computer-program research results). Piezoceramic samples were obtained from the synthesized phases and electrical parameters were measured. Were revealed that the samples, obtained from the charge, synthesized by chemical construction had values of  piezoelectric constants d31 and d33 much more than samples obtained by the method of solid state reaction.
Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems.

Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems

We describe the hardware and software package designed to get the dependencies of instantaneous values ​​of the electric field E of the magnetic field H, and, depending on the module surface impedance and phase shift of the electric and magnetic fields on the amplitude of the alternating magnetic field. The digital synchronous detection method applied in this article to analyze the spectral response of the substances. This article gives the results for ferromagnetic materials, paramagnetic materials and dielectrics.

Keywords: surface impedance, ferromagnetisms, alternating magnetic field, alternating electric field, digital synchronous detection.