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1.
Novozhilova E. A. Malygin A. A. Rychkov A. A. Kuznetsov A. E. 《Russian Journal of Applied Chemistry》2021,94(6):777-786
Russian Journal of Applied Chemistry - Organo-inorganic composite materials based on films of polytetrafluoroethylene and tetrafluoroethylene–hexafluoropropylene copolymer, modified with... 相似文献
2.
The influence of additives such as TiO2, Al2O3 and their mechanical mixture as well as aluminium oxide, the surface of which contains phosphorous and titanium-oxide nanostructures, on the combustibility of foam plast (trade mark PEN-I), produced on the basis of epoxide novolak block-copolymers, was studied. It was stated that the incorporation both phosphorous-containing and titanium-containing oxides in the composition results in significant (in two to five times) decreasing of the samples’ combustibility. The probable mechanism of inhibition of burning process for those combustion retarders was discussed. 相似文献
3.
Unstable form changing (click) of an arched TiNi strip annealed at 773 K is investigated. After the annealing, the strip is
placed into the grips of a deforming machine and is transferred to the martensitic state by bending in the direction opposite
to its initial bend. Subsequent heating of the strip, which carries it to the austenitic state, is accompanied by a click
under the conditions of constrained form changing. Analysis of the martensitic deformation in terms of the theory of diffuse
martensitic transformations makes it possible to establish the conditions under which the form changing process becomes unstable. 相似文献
4.
G. A. Malygin 《Physics of the Solid State》1998,40(4):629-633
This paper discusses theoretically the mechanism that causes the temperature dependences of the yield point and yield stress,
along with their rate coefficients, to deviate from behavior characteristic of thermally activated plastic strain at low temperatures
(<30 K). At this time the existence of such deviations, e.g., anomalous decreases in the values of these characteristics in
this temperature range, is explained by arguing that the process whereby dislocations overcome local barriers has inertia.
It is shown that the observed anomalies can be caused by the development of thermal instability in the plastic strain at low
temperatures. In contrast to inertia-related effects, thermal effects allow us to explain the plasticity of crystals at low
temperatures without contradiction and within the framework of a single mechanism, including the unstable, discontinuous character
of plastic strain that is characteristic of these temperatures.
Fiz. Tverd. Tela (St. Petersburg) 40, 684–689 (April 1998) 相似文献
5.
The nature of thermal transformations of titanium oxochloride surface groups on dispersed silica in the temperature range 25–600°C, both in the course of TiCl4 chemisorption and in subsequent thermal treatments, is considered.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 6, 2005, pp. 881–886.Original Russian Text Copyright © 2005 by Malkov, Sosnov, Malygin. 相似文献
6.
A. V. Klinov G. S. D’yakonov A. V. Malygin 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2007,81(12):1945-1949
Integral equation theory for partial distribution functions was used to suggest an effective method for calculating the derivative of radial distribution function with respect to temperature under isobaric conditions. The thermodynamic expansion, compression, and pressure coefficients and isobaric and isochoric heat capacities were calculated for Lennard-Jones fluids. The calculation results were in close agreement with the known thermodynamic relations. 相似文献
7.
S. A. Trifonov E. A. Sosnov Yu. S. Belova A. A. Malygin N. G. Razinkova G. G. Savkin 《Russian Journal of Applied Chemistry》2007,80(8):1413-1418
The influence of a gas-phase chemical modification of low-density polyethylene with volatile halides of various elements [PCl3, TiCl4, VOCl3, BBr3, and Si(CH3)2Cl2] on the surface layer morphology and vapor permeability of polymeric formulations was examined by atomic-force microscopy, chemical analysis, and adsorption method. 相似文献
8.
A. A. Malkov A. A. Malygin 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2014,88(3):530-536
Based on data from chemical analytical studies, IR, and Raman spectroscopy the relations between the conditions of synthesis, the structure of vanadium oxychloride groups formed on the surface in the interaction of VOCl3 with OH groups of silica, and subsequent transformations in the composition of these groups during vapor-phase hydrolysis and heat treatment has been found. 相似文献
9.
The “high strength-low plasticity resource” dilemma associated with the macrolocalization of plastic deformation in the form
of a neck in a stretched specimen, which leads to ductile failure of the specimen, has been theoretically discussed in the
framework of the dislocation-kinetic approach. It has been quantitatively demonstrated using micro- and nanocrystalline metals
as an example that their low plasticity resource (a small value of uniform strain before the beginning of the neck formation)
and quasi-embrittlement result from the strong increase in the yield strength with a decrease in the grain size and the strain-hardening
coefficient due to the annihilation of dislocations in the boundaries and bulk of grains. 相似文献
10.
V. I. Nikolaev S. A. Pul’nev G. A. Malygin V. V. Shpeizman S. P. Nikanorov 《Physics of the Solid State》2008,50(11):2170-2174
The generation and relaxation of reactive stresses in Cu-Al-Ni shape-memory alloy single crystals studied during a single cycle of temperature variation in the range 293–800 K under conditions of the β-phase decomposition (above 600 K) are found to depend on the degree of β-austenite decomposition at the stage of decreasing temperature. The higher this degree, the lower the stresses relaxed and generated upon decreasing temperature and the higher the critical temperatures of the reverse martensitic transitions. Moreover, loading the alloy by reactive stresses during a heating half-cycle causes not only a reversible martensitic shape memory deformation but also an additional austenitic shape memory deformation to occur when the temperature is decreased. 相似文献