The Influence of Aluminum Nitride Nanoparticles on the Structure, Phase Composition, and Properties of TiB/Ti-Based Materials Obtained by SHS Extrusion

2019 ◽  
Vol 10 (5) ◽  
pp. 1191-1195 ◽  
Author(s):  
A. V. Bolotskaia ◽  
M. V. Mikheev ◽  
P. M. Bazhin ◽  
A. M. Stolin ◽  
Yu. V. Titova
Keyword(s):  
Phase Composition ◽  
Aluminum Nitride ◽  
Shs Extrusion ◽  
Structure Phase

Extraction of compact ceramic electrode materials based on the Ti‒B‒Fe system modified by nanosized AlN particles by SHS extrusion

2020 ◽  
pp. 51-55
Author(s):  
A. V. Bolotskaya ◽  
M. V. Mikheev
Keyword(s):  
Phase Composition ◽  
Aluminum Nitride ◽  
Electrode Materials ◽  
Combustion Characteristics ◽  
Nanosized Particles ◽  
Shs Extrusion ◽  
Effect Of Additives ◽  
Initial Charge

Compact ceramic electrode materials based on the Ti‒B‒Fe system modified with nanosized particles of aluminum nitride (up to 15 wt. %) were obtained by SHS extrusion. The effect of additives on the combustion characteristics of the studied system, as well as on the structure and phase composition of the obtained materials, is studied. The addition of aluminum nitride increases the content of boride and nitride phases in the final product. It was found that the introduction of modifying nanosized particles of aluminum nitride into the initial charge leads to the grinding of grains of boride and nitride phases, which together increases the microhardness by 10 %, in comparison with unmodified samples.

Preparation by SHS-extrusion method of compact ceramic materials based on the Ti‒B system, modified with nanosized Si3N4 particles

2021 ◽  
pp. 132-135
Author(s):  
A. V. Bolotskaya ◽  
M. V. Mikheev ◽  
P. M. Bazhin ◽  
A. M. Stolin ◽  
Yu. V. Titova
Keyword(s):  
Phase Composition ◽  
Crack Resistance ◽  
Titanium Diboride ◽  
Mechanical Characteristics ◽  
Ceramic Materials ◽  
Shs Extrusion ◽  
Structure Phase ◽  
Initial Charge ◽  
Extrusion Method ◽  
Physical And Mechanical Characteristics

Compact ceramic materials based on the Ti‒B system modified with 5 wt. % of nanosized Si3N4 particles. The results of studies of the structure, phase composition, and physical and mechanical characteristics of the materials obtained are presented. It is shown that the addition of Si3N4 promotes the formation of new phases, in particular, titanium diboride and nitride in the final product. It was found that the introduction of modifying nanosized Si3N4 particles into the initial charge leads to an increase in hardness and microhardness by 15‒20 %, as well as to an increase in crack resistance by 1,5 times in comparison with unmodified samples.

Structure, Phase Composition, and Mechanical Properties of a Boron-Containing High-Nitrogen Austenitic Steel Made by Induction Melting

2020 ◽  
Vol 2020 (12) ◽  
pp. 1439-1445
Author(s):  
I. O. Bannykh ◽  
O. A. Bannykh ◽  
L. G. Rigina ◽  
E. N. Blinova ◽  
K. Yu. Demin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Composition ◽  
Austenitic Steel ◽  
Induction Melting ◽  
High Nitrogen ◽  
Structure Phase

Effect of heat treatment on the structure, phase composition, and mechanical properties of VN-10 alloy

1993 ◽  
Vol 29 (1) ◽  
pp. 56-60 ◽  
Author(s):  
O. I. Eliseeva ◽  
V. I. Kalyandruk ◽  
A. A. Denisova ◽  
V. V. Shirokov
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Phase Composition ◽  
Structure Phase

Preparation and ESR Properties of Silicon Nitride Nanowires

2012 ◽  
Vol 164 ◽  
pp. 69-72
Author(s):  
Jin Chen ◽  
Xiao Gang Wang ◽  
Hai Yan Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Phase Composition ◽  
Silicon Nitride ◽  
Oxidation Resistance ◽  
Raw Materials ◽  
Blue Shift ◽  
Ftir Spectra ◽  
Structure Phase ◽  
Ammonia Atmosphere ◽  
Main Component

We prepared Solid silicon nitride nanowires using carbon nanotubes as precursors., Si and SiO2 were used as raw materials,the reaction was carried out in ammonia atmosphere The structure, phase composition, ESR properties and oxidation resistance of the sample were investigated. The results showed that the sizes of the nanorods are 60–80 nm in diameter and up to several microns in length. In the products α-Si3N4 is the main component; the FTIR spectra of the silicon nitride nanowires have blue shift phenomena;The ESR properties show that the as made materials contains a large number of unpaired electrons

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