High‐temperature oxidation of a metal particle: Nonisothermal model

Filimonov, I. A.; Luss, Dan

doi:10.1002/aic.10393

Cited by 13 publications

(15 citation statements)

References 25 publications

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“…They have obtained some unreasonable results and try to explain them by the theories non-consistent with the classical combustion [22] and high-temperature oxidation [59] . Have broken the general consistency of the CS science they suggest models contradicting not only to previous investigations [13,14] but even to the common sense. Unfortunately, publication in a top physical Journal isn't a guarantee from mistakes.…”

Section: The Cs State Of Artmentioning

confidence: 96%

“…For example, consider the reactive model of aluminum nanoparticles [12] . The authors use the steady state equation of Poisson equation simplifying the system of temporal diffusion equations [13] used previously and trying to find so called the self-consistent solution which appears to be valid just locally for the equation considered and at the limit of steady-state solution of general system [13] . They forgot the basic principles of philosophy providing the validity of a judgment or a theory.…”

Section: Nanosciencementioning

confidence: 99%

“…Nevertheless, the life appears to be richer and much more complicated. By analogy with galvanic batteries and simultaneously with the electric investigation of the combustion synthesis in separate particles or small samples [11][12][13][14] , the idea of association of separate combustible elements into batteries has been first stated and is now successfully developed in Russia [15][16][17] . Just as the shock wave is formed by a numerable combination of usual weak waves, the SHS electric battery can be formed by a numerable combination of particles or small samples.…”

Section: Electric Shs Batteries and Their Simplest Classificationmentioning

confidence: 99%

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To SHS Aspects other than those of Distributed Electrochemical Systems: From Current-Voltage Generators, Bio-cells, Batteries and Accumulators to Emission and Radiation Effects during SHS, etc

Ia¹

2016

Res. Rev. J Mat. Sci

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Recent Experimental and numerical studies on Combustion Synthesis of Sulfides (CSS) in combination with the current ElectronicTheory of a Solid Body (ETSB) lead us to the conclusion that the CSS chemical reactions are accompanied by electron transitions inside the sulfide valence zone, i.e., by transitions between the energy states of electrons localized in the valence zone. Such a conclusion only can explain the huge difference of energy of sulfur clusters affinity to an electron from the sulfur ionization potential which is available in literature. In addition to the interrelated aspects of CSS and ETSB, we have presented a small review of the existing literature on electrochemical sources of current and voltage (cells, accumulators). This review is devoted to distributed electrochemical systems and to a certain extent supplements some of the earlier reviews written (with the participation of the author) for the sources of electricity based on SHS solely. As the result, it has been made the conclusion about the advantage of the combustion based sources of electric current (Pyrotechnic Sources of Electric Current, PSEC) in comparison with the modern accumulators and bio-cells. The conditions of PSEC stable work were discussed. Incidentally, we have also considered a few works concerning materials synthesis and nanoparticles. Nanoparticles are extremely popular now. The authors of the articles concerning such exotic objects use often in their publications unreasonable approximations or/and unchecked facts. In our opinion, the readers have to realize, where and what conclusions of similar authors deviate from the reality or from the classical results received earlier. To prove a solvency and a coherence of new results and representations is the business of innovators themselves, not of others or us. We just reveal some of their frequent shortcomings here. The comparison of the SHS systems on the specific electric energies generated during the synthesis has been also carried out. The energies appear to depend strongly on the composition, green density and the sample electric resistance. We have shown that in the SHS Semiconductive Systems of a Loosed Density (SLD) the generated specific electric energy is comparably less than that of a fish slope. Therefore, we have suggested new non-system units based on the specific electric energy generated by a fish slope as a useful measure for the SLD generated electric energies. It has appeared that the greatest quantity of specific electric energy is emitted by the loosed mixture of titanium with its nitride. Nevertheless, we have calculated

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Section: The Cs State Of Artmentioning

confidence: 96%

Section: Nanosciencementioning

confidence: 99%

Section: Electric Shs Batteries and Their Simplest Classificationmentioning

confidence: 99%

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To SHS Aspects other than those of Distributed Electrochemical Systems: From Current-Voltage Generators, Bio-cells, Batteries and Accumulators to Emission and Radiation Effects during SHS, etc

Ia¹

2016

Res. Rev. J Mat. Sci

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“…The three types of generated electric signals found in [17][18][19]23] were explained in [24] by different distances from one or both measurement electrodes to the sample end faces and by possible pressure unloading through them. Not downgrading the importance of assumptions made in [23,24], we should note that the idea of the maximum concentration and maximum fluxes of charge carriers in the vicinity of the temperature maximum, which was used in the estimates in [24], is confirmed neither experimentally [20,21,25,26] nor theoretically [27].…”

Section: Generation Of Electric Fieldsmentioning

confidence: 98%

“…A new theoretical model was recently developed in [27,28], which explains the electric fields and currents observed in [20] during combustion of individual metallic particles in oxygen. This model is based on the idea [29][30][31] of electric potential generation by charged defects of the oxide lattice diffusing through the growing oxide layer with different velocities.…”

Section: Generation Of Electric Fieldsmentioning

confidence: 99%

High-Temperature Combustion Synthesis: Generation of Electromagnetic Radiation and the Effect of External Electromagnetic Fields (Review)

Filimonov

Kidin

2005

Combust Explos Shock Waves

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A critical review of recent papers on mechanisms of generation of internal electromagnetic fields and the action of external electromagnetic fields on self-propagating high-temperature synthesis of heterogeneous systems is presented. Generation of an internal electromagnetic field is caused by different rates of diffusion of charged defects through the layer of the growing product in strongly nonequilibrium reactions. Possible emergence of residual magnetic fields is related to orientation of magnetic domains in the arising internal thermal and electromagnetic fields of the synthesis wave. The external electromagnetic action is characterized by thermal, magneto-and electrodynamic, and kinetic factors. The thermal factor is caused by the Joule effect, whereas the electro-and magnetodynamic influence is caused by electromigration, magnetic compression and changes in electrical conductivity of the condensed phase, and ion wind in the gas in pores. The kinetic factor is caused by generation of superequilibrium charge carriers in condensed particles (defects) and by emission of high-energy electrons into the gas surrounding the particles.

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Two-Temperature Model and Simulation of Induced Electric Field During Combustion Synthesis of Zinc Sulfide in Argon

2018

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High‐temperature oxidation of a metal particle: Nonisothermal model

Cited by 13 publications

References 25 publications

To SHS Aspects other than those of Distributed Electrochemical Systems: From Current-Voltage Generators, Bio-cells, Batteries and Accumulators to Emission and Radiation Effects during SHS, etc

To SHS Aspects other than those of Distributed Electrochemical Systems: From Current-Voltage Generators, Bio-cells, Batteries and Accumulators to Emission and Radiation Effects during SHS, etc

High-Temperature Combustion Synthesis: Generation of Electromagnetic Radiation and the Effect of External Electromagnetic Fields (Review)

Two-Temperature Model and Simulation of Induced Electric Field During Combustion Synthesis of Zinc Sulfide in Argon

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