High temperature synthesis of nickel aluminide alloys with tungsten carbide

2020 ◽  
pp. 31-34
Author(s):  
S. N. Khimukhin ◽  
◽  
V. B. Deev ◽  
E. Kh. Ri ◽  
E. D. Kim ◽  
...  
Keyword(s):  
High Temperature ◽  
Tungsten Carbide ◽  
Nickel Aluminide ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

scholarly journals Self-propagating High-temperature Synthesis of Materials Based on Tungsten Carbide for One-Pot Hydrolysis-Hydrogenolysis of Cellulose Into Ethylene Glycol and 1,2-Propylene Glycol

2019 ◽  
pp. 269-281
Author(s):  
Nikolay V. Gromov ◽  
Тatiana B. Medvedeva ◽  
Ivan А. Lukoyanov ◽  
Alekasandr А. Zhdanok ◽  
Vladimir А. Poluboyarov ◽  
...  
Keyword(s):  
High Temperature ◽  
Ethylene Glycol ◽  
Tungsten Carbide ◽  
Propylene Glycol ◽  
Reaction Rate ◽  
Total Yield ◽  
Temperature Synthesis ◽  
One Pot ◽  
Catalytic Systems ◽  
High Temperature Synthesis

Catalytic systems based on tungsten carbide (WnC) containing mainly W2C were obtained by the method of self-propagating high-temperature synthesis from a mechanochemically activated mixture of tungsten oxide, metallic magnesium, carbon black and CaCO3. The phase composition of the formed materials was shown to depend on the amount of CaCO3. The catalytic properties of the materials were tested in the hydrolysis-hydrogenation of cellulose to ethylene glycol (EG) and 1,2-propylene glycol (PG). It was established that in the presence of WnC the main products of the reaction were EG and PG with a ratio of PG/EG – 1.5-1.8. The deposition of nickel nanoparticles on the WnC surface increased the reaction rate and product yields. The maximum total yield of diols was 47.1 mol. %.

Induction-activated self-propagating, high-temperature synthesis of nickel aluminide

2017 ◽  
Vol 28 (11) ◽  
pp. 2974-2979 ◽  
Author(s):  
M. Shekari ◽  
M. Adeli ◽  
A. Khobzi ◽  
M. Kobashi ◽  
N. Kanetake
Keyword(s):  
High Temperature ◽  
Nickel Aluminide ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

New isopropanol dehydration catalyst based on tungsten carbide prepared by modified self-propagating high-temperature synthesis

2011 ◽  
Vol 52 (6) ◽  
pp. 851-854 ◽  
Author(s):  
A. R. Zurnachyan ◽  
Kh. V. Manukyan ◽  
S. L. Kharatyan ◽  
V. A. Matyshak ◽  
R. A. Mnatsakanyan
Keyword(s):  
High Temperature ◽  
Tungsten Carbide ◽  
Temperature Synthesis ◽  
Isopropanol Dehydration ◽  
High Temperature Synthesis

Fabrication of Dense Nickel Aluminide Monolithic and Composite Bodies By Combined Self Propagating High Temperature Synthesis and in Situ Containerless Hot Isostatic Pressing

1990 ◽  
Vol 213 ◽  
Author(s):  
Michael Concannon ◽  
Edwin S. Hodge ◽  
Andrew C. Nyce ◽  
Christopher P. Turmel
Keyword(s):  
High Temperature ◽  
Nickel Aluminide ◽  
Room Temperature ◽  
Hot Isostatic Pressing ◽  
Nickel Aluminum ◽  
Temperature Synthesis ◽  
Isostatic Pressing ◽  
High Temperature Synthesis ◽  
Cold Pressed

ABSTRACTMonolithic Ni 3Al and composite Ni3Al/ceramic whisker bodies were fabricated by combined Self Propagating High Temperature Synthesis and in situ containerless Hot Isostatic Pressing (SHS/HIP), starting from cold pressed blends of nickel, aluminum, and boron powders, with and without additions of alumina whiskers. The resultant bodies were dense and had good ductility and mechanical strength at room temperature.

Obtaining of Composite Alloys Based on Nickel Aluminides with Rare Metals

2021 ◽  
Vol 887 ◽  
pp. 73-78
Author(s):  
Sergey N. Khimukhin ◽  
E.D. Kim ◽  
Ri Khosen
Keyword(s):  
High Temperature ◽  
Nickel Aluminide ◽  
Reduction Process ◽  
Intermetallic Alloys ◽  
Positive Experience ◽  
Tungsten Carbides ◽  
Rare Metals ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
A Charge

The paper presents the research results on the production of doped composite materials by the method of out-of-furnace liquid-phase self-propagating high-temperature synthesis using oxides and mineral concentrates containing Zr and W as a charge. The positive experience of producing ingots of intermetallic alloys based on the Ni-Al system in one stage of the reduction process of joint metallothermy is shown. The use of Zr in the charge leads to grinding of microstructure of the ingots and the formation of intermetallic compounds containing Zr. The additional use of C, B2O3, and W in the charge results in the formation of complex borides and tungsten carbides in the ingots. Additional introduction of Cr2O3 into the charge is necessary for the formation of W carbides in the nickel aluminide matrix.

Sign in / Sign up

Export Citation Format

Share Document