Self-Propagating high-temperature synthesis. Combustion front, dissemination, and structure

Refractories ◽  
1992 ◽  
Vol 33 (11-12) ◽  
pp. 490-492
Author(s):  
V. I. Sumin ◽  
Yu. N. Makurin
Keyword(s):  
High Temperature ◽  
Combustion Front ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

scholarly journals Self-Propagating High-Temperature Synthesis under the Conditions of Rotation and Characteristic Heat and Concentration Limits on the Example of Oxide Systems

2011 ◽  
Vol 13 (3-4) ◽  
pp. 149
Author(s):  
Georgij I. Ksandopulo
Keyword(s):  
High Temperature ◽  
Combustion Front ◽  
Temperature Synthesis ◽  
Oxide Systems ◽  
High Temperature Synthesis ◽  
Adiabatic Regime ◽  
Continuous Technology ◽  
Technology Of Production ◽  
Concentration Limits ◽  
Melted Metal

Potential economic possibility of using centrifugal force for production of noble ferroalloys is shown. Connected with this process, the limits of stable combustion are conditioned by formation of adiabatic regime of combustion due to the effect of acceleration of the combustion front by centrifuged particles of melted metal product. There appears the possibility to create a continuous technology of production of ferroalloys on the basis of aluminothermy and of significantly decreased low limit concentration of the sought for metal in the initial row material.

The Mechanism of the Formation of MoSi2 by Self-Propagating High-Temperature Synthesis

2007 ◽  
Vol 280-283 ◽  
pp. 1467-1470 ◽  
Author(s):  
Jian Ying Gao ◽  
Wan Jiang ◽  
Gang Wang
Keyword(s):  
High Temperature ◽  
Combustion Front ◽  
Experimental Results ◽  
Reactive Diffusion ◽  
Temperature Synthesis ◽  
Precipitation Mechanism ◽  
High Temperature Synthesis

A combustion front quenching (CFQ) technique was used to investigate the mechanism of selfpropagating high-temperature synthesis (SHS) of MoSi2 from Mo and Si powders. Based on the experimental results, a combination of reactive diffusion and dissolution-precipitation mechanism of the formation of MoSi2 was proposed, and a model corresponding to this mechanism was drawn.

Mechanical Activation as a New Method for SHS

2006 ◽  
Vol 45 ◽  
pp. 979-988 ◽  
Author(s):  
Frédéric Bernard ◽  
Sébastien Paris ◽  
Eric Gaffet
Keyword(s):  
High Temperature ◽  
Mechanical Activation ◽  
Combustion Front ◽  
Front Velocity ◽  
Thermal Heating ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
End Products ◽  
Elemental Powder Mixture ◽  
Short Time

The use of mechanical activation (the elemental powder mixture is milled for a short time at given frequency and impact energy) as a precursor to self-propagating high-temperature synthesis (SHS) results in the formation of nanostructured porous materials. The mechanical activation step was found necessary (i) to modify the thermal parameters of the combustion front (i.e. combustion front velocity, thermal heating rate…) in the cases of Mo-Si, Fe-Al, Ni-Si (ii) to initiate a combustion front in the case of systems having a low exothermicity. Nevertheless, the control of the mechanically activated mixture characteristics and, the understanding of the mechanical activation role on the SHS parameters are essential to produce end-products with expected microstructure.

Hardening of metal surface via self-propagating high-temperature synthesis in thin films

2007 ◽  
Vol 43 (4) ◽  
pp. 239-242
Author(s):  
S. Kh. Suleimanov ◽  
O. A. Dudko ◽  
V. G. Dyskin ◽  
Z. S. Settarova ◽  
M. U. Dzhanklych
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Metal Surface ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

Effect of Additives on the Characteristics of Amorphous Nano Boron Powder Fabricated by Self-Propagating High Temperature Synthesis

2015 ◽  
Vol 25 (12) ◽  
pp. 659-665
Author(s):  
Sin Hyong Joo ◽  
Hayk H. Nersisyan ◽  
Tae Hyuk Lee ◽  
Young Hee Cho ◽  
Hong Moule Kim ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Synthesis ◽  
Boron Powder ◽  
Effect Of Additives ◽  
High Temperature Synthesis
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