Structural and surface characterization of ultrafine iron carbide particles generated by laser pyrolysis. I. High temperature He treatment

1994 ◽  
Vol 12 (2) ◽  
pp. 443-451 ◽  
Author(s):  
Anantha R. Sethuraman ◽  
John M. Stencel ◽  
Aurora M. Rubel ◽  
Burl Cavin ◽  
Camden R. Hubbard
Keyword(s):  
High Temperature ◽  
Surface Characterization ◽  
Iron Carbide ◽  
Laser Pyrolysis ◽  
Carbide Particles

scholarly journals Chemical and Structural Analysis of Newly Prepared Co-W-Al Alloy by Aluminothermic Reaction

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 658
Author(s):  
Štefan Michna ◽  
Anna Knaislová ◽  
Iryna Hren ◽  
Jan Novotný ◽  
Lenka Michnová ◽  
...  
Keyword(s):  
Phase Composition ◽  
High Temperature ◽  
Structural Analysis ◽  
Surface Coating ◽  
Al Alloy ◽  
Metal Carbides ◽  
Aluminothermic Reaction ◽  
Carbide Particles ◽  
Very High

This article is devoted to the characterization of a new Co-W-Al alloy prepared by an aluminothermic reaction. This alloy is used for the subsequent preparation of a special composite nanopowder and for the surface coating of aluminum, magnesium, or iron alloys. Due to the very high temperature (2000 °C–3000 °C) required for the reaction, thermite was added to the mixture. Pulverized coal was also added in order to obtain the appropriate metal carbides (Co, W, Ti), which increase hardness, resistance to abrasion, and the corrosion of the coating and have good high temperature properties. The phase composition of the alloy prepared by the aluminothermic reaction showed mainly cobalt, tungsten, and aluminum, as well as small amounts of iron, titanium, and calcium. No carbon was identified using this method. The microstructure of this alloy is characterized by a cobalt matrix with smaller regular and irregular carbide particles doped by aluminum.

Surface characterization of Mo-implanted 6H–SiC by high temperature non-reactive wetting tests with the Ni–56Si alloy

2014 ◽  
Vol 40 (5) ◽  
pp. 7227-7234 ◽  
Author(s):  
S.T. Zhao ◽  
F. Valenza ◽  
G.W. Liu ◽  
M.L. Muolo ◽  
G.J. Qiao ◽  
...  
Keyword(s):  
High Temperature ◽  
Surface Characterization ◽  
Reactive Wetting

scholarly journals Surface Characterization of Zr-O/W System at High Temperature

Hyomen Kagaku ◽  
1994 ◽  
Vol 15 (4) ◽  
pp. 268-272
Author(s):  
Suchan LEE ◽  
Hitosi TAMURA ◽  
Masahiko INOUE ◽  
Ryuichi SHIMIZU
Keyword(s):  
High Temperature ◽  
Surface Characterization

A new synthesis of carbon encapsulated Fe5C2 nanoparticles for high-temperature Fischer–Tropsch synthesis

Nanoscale ◽  
2015 ◽  
Vol 7 (40) ◽  
pp. 16616-16620 ◽  
Author(s):  
Seok Yong Hong ◽  
Dong Hyun Chun ◽  
Jung-Il Yang ◽  
Heon Jung ◽  
Ho-Tae Lee ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Treatment ◽  
Iron Carbide ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Iron Oxalate ◽  
Oxalate Dihydrate ◽  
New Synthesis ◽  
Carbide Particles

A novel Fe5C2@C catalyst bearing small iron carbide particles ∼10 nm in diameter was prepared using a simple thermal treatment of iron oxalate dihydrate cubes, employed in high-temperature Fischer–Tropsch synthesis.

scholarly journals Surface characterization of palladium–alumina sorbents for high-temperature capture of mercury and arsenic from fuel gas

Fuel ◽  
2010 ◽  
Vol 89 (6) ◽  
pp. 1323-1325 ◽  
Author(s):  
John P. Baltrus ◽  
Evan J. Granite ◽  
Henry W. Pennline ◽  
Dennis Stanko ◽  
Hugh Hamilton ◽  
...  
Keyword(s):  
High Temperature ◽  
Surface Characterization ◽  
Fuel Gas

Surface Characterization of Silicon Carbide Following Shallow Implantation of Platinum Ions for High Temperature Hydrogen Sensing Applications

2006 ◽  
Vol 929 ◽  
Author(s):  
Claudiu Muntele ◽  
Satilmis Budak ◽  
Iulia Muntele ◽  
Daryush Ila
Keyword(s):  
Silicon Carbide ◽  
High Temperature ◽  
Surface Characterization ◽  
Wide Bandgap ◽  
Electrical Contacts ◽  
Temperature Dependent ◽  
Hydrogen Sensing ◽  
Fast Switching ◽  
Sensing Applications

ABSTRACTSilicon carbide is a promising wide-bandgap semiconductor intended for use in fabrication of high temperature, high power, and fast switching microelectronics components running without cooling. For hydrogen sensing applications, silicon carbide is generally used in conjunction with either palladium or platinum, both of them being good catalysts for hydrogen. Here we are reporting on the temperature-dependent depth profile modifications of tungsten electrical contacts deposited on silicon carbide substrates.

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