The study shows that the CVCC produced from Pt/2 NANO IM MSA/PBS interface is located inside the CVCC produced from the interface Pt/2 NANO IM MSA/ y ml P. aeruginosa AT CC 27853 in PBS. Nanobiosensor has been constructed, and electrochemical method for registration of P. aeruginosa AT CC 27853 complementary antigens in laboratory conditions has been developed in this study. Anode and cathode currents of voltamperometric maximums of this biosensor with nanoshifts along electrochemical reaction coordinates at high exposure times in the solution have been shown to be caused by specific interaction with P. aeruginosa AT CC 27853 complementary antigen, and exceed the similar currents from Pt/PBS interface by more than 200.

In this paper, it is established that modification of multiwalled carbon nanotubes phenildiazonium salt increases the current of oxidation of polyaniline matrix in 10,7 times. The modification alters the conformational state of macrochains polyaniline, resulting is to change the morphology, structure and chemical composition of the composite.

The rotation of Ge-Ge and Si-Si addimers on top of the substrate dimer rows of Ge(001) have been investigated by using ab initio using high level quantum chemistry calculations. The optimal pathways for A→B and reversed transformations have been found by using UB3LYP/N21-3** method. The energy barriers for Si-Si and Ge-Ge addimer rotation have estimated to be 0.3 eV and 0.4 eV for BA transformation, respectively. The optimal pathways for AB transformation are a correlated movement of the Si, Ge adatom. Such correlated piecewise rotation pathways are in good agreement with the STM data. Si, Ge addimers on Ge(001) surface in the A, B and transition state configurations have a multiconfiguration character.

*Донбасская государственная машиностроительная академия, г. Краматорск, Донецкой обл., Украина
**Донецкий национальный университет, г. Донецк

In the present work results of tests for thermal stability of thin wearproof coverings on a basis diboride of transition metals are presented. Structural transformations occurring in films are described at influence of heats. Physico-mechanical characteristics of coverings before thermal influence on them are estimated. Recommendations about a possible scope of the given type of coverings in mechanical engineering are made. In particular processings of metals by cutting.

In the presented work the physical processes occurring at formation of structure of film coverings диборидов of transitive metals, received by a method магнетронного dispersions are described.

This paper is devoted to structural changes during the fast surface deformation.
One of the types of explosive technology which is closely associated with structural changes during the shock-wave treatment of metals is the strengthening during the explosion. When the charge of explosive detonates in contact with metal in a superficial layer there is a deformation hardening. It is connected with formation of a plenty of defects. Hardness and depth of hardening area depends on initial defamation properties of metal and the nature of shock–wave loading. Wear resistance and durability of details from various kinds of steels are increased at a correct choice of parameters of loading superficial hardness. Deformation of metals with high speeds leads also to changes in structure and properties, which intensify processes of diffusion at chemical-heat thermal processing in further.

1 Національний університет «Львівська політехніка»
2 Міжнародна лабораторія сильних магнітних полів та низьких температур, м. Вроцлав, Польща

Проведені магнітні та температурні дослідження магнітних властивостей аморфного матеріалу Fe80Mo7Au1B12, в залежності від напруженості прикладеного магнітного поля та зміни температури. Дослідження проводилися одночасно у двох напрямах: вимірювання магнітного моменту від температури та магнітного моменту від магнітного поля.

In this article the structure Si(001) surface covered by the pre-adsorbed (~1–3 nm) of Ti and Cr at room temperature after annealing at 4500C was studied. It was found that after annealing on silicon surface formed island’s coverage. The investigation of stoichiometry shows that island’s composed of disilicide’s structure.

ВЛИЯНИЕ ТЕРМИЧЕСКОЙ ОБРАБОТКИ НА РАСПРЕДЕЛЕНИЕ МАЛОРАСТВОРИМЫХ ПРИМЕСЕЙ И ФОРМИРОВАНИЕ

This paper presents the results of studying the effect of hardening regime and the subsequent low-temperature annealing on the distribution of low-soluble impurities and the formation of titanium carbide TiC in commercial pure titanium VT1-0.

Titanium alloy VT16 after cold rolling on various degree of deformation have been studied by means of transmission electronic microscopy and X-ray diffraction. Metastable α " phases under the influence of cold plastic deformation by rolling undergo phase transformations with hexagonal close packing lattice α '-phases formation. It is was established that with the degree of deformation increasing by rolling there is a crushing of orthorhombic martensite α˝ plates with grain-subgrain nanostructure formation. Morphology features of disperse crystallites allocated on various stages of disintegration α΄ and α˝-phases had been investigated by high-resolution microscopy. Temperature and time conditions decomposition of metastable phases and law of hardness change after various degrees cold rolling and ageing had been established

В работе проведен вейвлет-анализ экспериментальной зависимости скорости осаждения алмазного покрытия (АП) в CVD-методе относительно различных групп частиц, являющихся компонентами газоплазменного облака. Обнаружена тонкая структура на вейвлет спектрограмме, указывающая на наличие различных по эффективности групп частиц, вносящих свой вклад в скорость роста алмазной фазы. Полученная вейвлет спектрограмма дает возможность приближенно оценить относительные концентрации активных частиц в газоплазменном облаке вблизи поверхности подложки.

In model of nonlocal thermoelastic peak the droplet sputtering of nanocrystalline metal targets at bombardment by noble gas ions with energy Е from 25 eV to 10 keV is theoretically investigated. It is shown that the droplet sputtering of amorphous iron by ions heavier of 40Ar can be observed. Threshold energy of the droplet sputtering of amorphous iron is increased with mass of noble gas ion. The higher the ion weight is the bigger can be grain of sputtered material.