Combustion synthesis and characterization of Fe-Ni alloysInternational Journal of Self-Propagating High-Temperature Synthesis - - 2011
Y. H. Kang, L. Wang, L. C. Fu, J. Yang, Q. L. Bi, W. M. Liu
A simple and inexpensive method for combustion synthesis of the series of Fe-x%Ni martensite alloys (x = 15, 20, 23, 25 at %) was developed. XRD, SEM, and TEM examinations showed that all the products were composed of lath martensite and retained austenite. With increasing nickel content, the hardness and yield strength decreased gradually, which originated from the differences in phase compositio...... hiện toàn bộ
Gasless Combustion in Combined Binary Mixtures Containing Low-Melting Reagent: Mathematical ModelInternational Journal of Self-Propagating High-Temperature Synthesis - Tập 30 - Trang 127-131 - 2021
V. G. Prokof’ev, O. V. Lapshin
Gasless combustion in the combined binary mixtures formed by alternating non-activated and mechanically activated layers containing low-melting reagent was mathematically modelled in a macroscopic approximation, with account for a phase transformation (melting) in a low-melting reagent. The phase transition was found to either decelerate or accelerate combustion: the former happens when some amoun...... hiện toàn bộ
Combustion synthesis of PZN-10PT nanopowdersInternational Journal of Self-Propagating High-Temperature Synthesis - Tập 21 - Trang 11-18 - 2012
C. F. V. Raigoza, J. A. Eiras, D. Garcia, R. H. G. A. Kiminami
Discussed is the influence of the fuel and water employed in combustion synthesis of single-phase (perovskite) PZN-10PT nanopowder with an x = 0.10 composition. Pb(NO3)2, Zn(NO3)2 · 6H2O, (NH4NbO(C2O4)2), and C8H20O4Ti were used as cation precursors while urea, glycine, glycine/urea (50/50 ratio), and tetraformal triazine (TFTA), as fuels. Two sets of precursors (denoted as set-1 and set-2) were u...... hiện toàn bộ
Gasless Combustion in Partially Mechanoactivated Binary Mixtures: Mathematical ModelInternational Journal of Self-Propagating High-Temperature Synthesis - - 2021
O. V. Lapshin, V. G. Prokof’ev
In this communication, we report on the mathematical modeling of gasless combustion in partially mechanoactivated binary mixtures. The model involves the equations of heat balance, chemical kinetics, and boundary conditions, with special emphasis on the influence of mechanoactivation parameters on the process of combustion wave propagation over the system under study.
Macroscopic theory of mechanochemical synthesis in heterogeneous systemsInternational Journal of Self-Propagating High-Temperature Synthesis - Tập 16 - Trang 1-11 - 2007
V. K. Smolyakov, O. V. Lapshin, V. V. Boldyrev
Physical and mathematical models of mechanochemical synthesis in the macroscopic approximation were suggested. The mathematical model is based on the equations of (a) heat balance in a reactor, (b) dynamics of excess energy in condensed matter (defining the effect of mechanical activation on the rate of chemical reaction), (c) chemical kinetics, and (d) comminution and change in the surface area o...... hiện toàn bộ