Thermodynamic analysis of the reaction of titanium with boron carbide in a self-propagating high-temperature synthesis regime

1999 ◽  
Vol 38 (3-4) ◽  
pp. 172-175 ◽  
Author(s):  
S. P. Gordienko
Keyword(s):  
High Temperature ◽  
Boron Carbide ◽  
Thermodynamic Analysis ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

Priority compositions of boron carbide crystals obtained by self-propagating high-temperature synthesis

2015 ◽  
Vol 60 (5) ◽  
pp. 667-669
Author(s):  
V. I. Ponomarev ◽  
S. V. Konovalikhin ◽  
I. D. Kovalev ◽  
V. I. Vershinnikov
Keyword(s):  
High Temperature ◽  
Boron Carbide ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

Solid Phase’s Transformations in Boron Carbide Based Composites during Heat Treatment

2008 ◽  
Vol 138 ◽  
pp. 175-180
Author(s):  
Lembit A. Kommel ◽  
Eduard Kimmari
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Boron Carbide ◽  
Environmental Conditions ◽  
Sliding Wear ◽  
Bending Strength ◽  
Reaction Products ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Different Temperatures

Lightweight B4C/Al composites were produced from powders of boron carbide and aluminum by self-propagating high-temperature synthesis (SHS). The effects of postdensification heat treatment at different temperatures and environmental conditions on phase transformations and properties evolution were studied. Heat treatment processing that followed the synthesis was applied using low heating rate in temperature range from 400°C up to 1500°C. An interconnected multiphase (B4C, Al3BC, and c-BN) microstructure was produced in composite as a result of heat treatment at temperatures below 1080°C. The formation of hard and brittle reaction products (AlN, AlB2, Al4C3, and Al8B4C7) at temperatures above 1150°C causes decrease in bending strength and increase in resistance to unlubricated sliding wear.

Thermodynamic Analysis of Ni-Al-WC System during Self-Propagating High Temperature Synthesis

2017 ◽  
Vol 898 ◽  
pp. 1569-1574
Author(s):  
Jian Jun Yuan ◽  
Xin Ying Liu ◽  
Dong Min Li ◽  
Shu Mei Lou
Keyword(s):  
High Temperature ◽  
Ternary System ◽  
Thermodynamic Analysis ◽  
Adiabatic Temperature ◽  
Temperature Synthesis ◽  
Thermodynamic Principle ◽  
High Temperature Synthesis ◽  
Preheating Temperature

Ni-Al-WC ternary system during self-propagating high-temperature synthesis (SHS) was analyzed and calculated based on thermodynamic principle, and the curves of adiabatic temperature (Tad) and preheating temperature (T0) and WC content (wt.%) were drawn. The results showed that adiabatic temperature of the system decreased with the increase of WC content and the maximum of WC content was about 34 wt.% for preheating temperature of 933K. Adiabatic temperature increased with increasing preheating temperature and properly increasing preheating temperature could promote the reaction self-sustaining when WC content was excessive and adiabatic temperature was less than 1912K.

Self-propagating high-temperature synthesis in mechanically activated mixtures of boron carbide and titanium

2017 ◽  
Vol 53 (6) ◽  
pp. 669-677 ◽  
Author(s):  
M. A. Korchagin ◽  
A. I. Gavrilov ◽  
V. E. Zarko ◽  
A. B. Kiskin ◽  
Yu. V. Iordan ◽  
...  
Keyword(s):  
High Temperature ◽  
Boron Carbide ◽  
Temperature Synthesis ◽  
High Temperature Synthesis
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