A Common Regularity of Stoichiometry-Induced Morphology Evolution of Transition Metal Carbides, Nitrides, and Diborides during Self-Propagating High-Temperature Synthesis

2012 ◽  
Vol 12 (6) ◽  
pp. 2814-2824 ◽  
Author(s):  
Shenbao Jin ◽  
Ping Shen ◽  
Dongshuai Zhou ◽  
Qichuan Jiang
Keyword(s):  
High Temperature ◽  
Transition Metal ◽  
Morphology Evolution ◽  
Metal Carbides ◽  
Temperature Synthesis ◽  
Transition Metal Carbides ◽  
High Temperature Synthesis

Facile, low-temperature synthesis of tungsten carbide (WC) flakes for the sensitive and selective electrocatalytic detection of dopamine in biological samples

2019 ◽  
Vol 6 (8) ◽  
pp. 2024-2034 ◽  
Author(s):  
Muthaiah Annalakshmi ◽  
Paramasivam Balasubramanian ◽  
Shen-Ming Chen ◽  
Tse-Wei Chen ◽  
Pei-Hung Lin
Keyword(s):  
Low Temperature ◽  
Transition Metal ◽  
Tungsten Carbide ◽  
Biological Samples ◽  
Electronic Conductivity ◽  
Metal Carbides ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Transition Metal Carbides ◽  
Electrochemical Applications

Transition metal carbides have shown potential for use in electrochemical applications due to their excellent electronic conductivity, stability and electrocatalysis.

Rare-earth transition-metal intermetallic compounds produced via self-propagating, high-temperature synthesis

2010 ◽  
Vol 25 (4) ◽  
pp. 718-727 ◽  
Author(s):  
Joel P. McDonald ◽  
Mark A. Rodriguez ◽  
Eric D. Jones ◽  
David P. Adams
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Transition Metal ◽  
Intermetallic Compounds ◽  
High Speed ◽  
High Speed Photography ◽  
Material System ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Metal Metal

Several binary intermetallic compounds—each containing a rare-earth (RE) element paired with a transition metal (TM)—were prepared by self-propagating, high-temperature synthesis (SHS). Thin multilayers, composed of alternating Sc or Y (RE element) and Ag, Cu, or Au (TM), were first deposited by direct current magnetron sputtering. Once the initially distinct layers were stimulated and caused to mix, exothermic reactions propagated to completion. X-ray diffraction revealed that Sc/Au, Sc/Cu, Y/Au, and Y/Cu multilayers react in vacuum to form single-phase, cubic B2 structures. Multilayers containing Ag and a RE metal formed cubic B2 (RE)Ag and a minority (RE)Ag2 phase. The influence of an oxygen-containing environment on the reaction dynamics and the formation of phase were investigated, providing evidence for the participation of secondary combustion reactions during metal-metal SHS. High-speed photography demonstrated reaction propagation speeds that ranged from 0.1–40.0 m/s (dependent on material system and foil design). Both steady and spin-like reaction modes were observed.

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