Thermodynamic Description of Chemical Reactions in a Titanium–Aluminum–Hexamethylenetetramine System under Conditions of Self-Propagating, High Temperature Synthesis

2020 ◽  
Vol 56 (4) ◽  
pp. 469-473
Author(s):  
A. N. Yushchishina ◽  
D. I. Chelpanov ◽  
N. I. Kuskova
2007 ◽  
Vol 555 ◽  
pp. 73-81
Author(s):  
Maxim V. Kuznetsov ◽  
Yuri G. Morozov ◽  
Ivan P. Parkin

The results of a new potentiometric technique for in situ diagnostics of self-propagating high-temperature synthesis (SHS) of different complex oxides are presented. This technique is based on electrochemical processes. The characteristic peaks attributed to the electric responses from cation streams of alkali, alkaline-earth and some elements of group VI are discovered and the respective routes of the corresponding chemical reactions found.


2017 ◽  
Vol 62 (1) ◽  
pp. 141-147 ◽  
Author(s):  
W. Wołczyński

AbstractA new thermodynamic description for the self-propagating high temperature synthesis (SHS - reaction) is presented in the “inverse” version. This description is worked out for the diffusion barrier, thickness of which is at the limit, i.e. its value is infinitesimally small. The solution to the diffusion equation delivered in the description can be easily extended for the diffusion barrier of a greater thickness. The Ni/Al multi-layers system is treated as a virtual eutectic alloy solidifying with the rate equal to that involved by the self-propagating reaction. It is suggested to inverse the curves obtained for solidification in order to characterize the melting completed by the formation of the AlNi - intermetallic phase required in the self-propagating synthesis.


2021 ◽  
Vol 23 (2) ◽  
pp. 111
Author(s):  
A.J. Seidualiyeva ◽  
K. Kamunur ◽  
R.G. Abdulkarimova ◽  
U. Onuralp ◽  
A.N. Batkal

Borides and carbides attract the attention of developers of heat-resistant and super hard structural materials due to a unique combination of their resistance to high-temperature oxidation, high hardness, wear resistance, electrical and thermal conductivity and etc. The article presents experimental results on obtaining composites based on TiB2-TiC-Al2O3, CrB2-Al2O3 by a method combining self-propagating high-temperature synthesis (SHS) and mechanical activation (MA). The influence of the composition of the initial components, the conditions of SHS and preliminary MA on the formation of the microstructure and phase composition of the SHS-composite based on titanium carbide and titanium, chromium borides has been studied. The SHS products were examined by X-ray diffraction analysis and a scanning electron microscope. High-temperature phases of borides of chromium, titanium, aluminum oxide and their spinel are found in SHS products.


2007 ◽  
Vol 43 (4) ◽  
pp. 239-242
Author(s):  
S. Kh. Suleimanov ◽  
O. A. Dudko ◽  
V. G. Dyskin ◽  
Z. S. Settarova ◽  
M. U. Dzhanklych

2015 ◽  
Vol 25 (12) ◽  
pp. 659-665
Author(s):  
Sin Hyong Joo ◽  
Hayk H. Nersisyan ◽  
Tae Hyuk Lee ◽  
Young Hee Cho ◽  
Hong Moule Kim ◽  
...  

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