A Study of Current Chopping Characteristics in Metal-Carbide Composite Contact Materials

2009 ◽  
Vol 129 (4) ◽  
pp. 548-552
Author(s):  
Atsushi Yamamoto ◽  
Takashi Kusano ◽  
Tsutomu Okutomi ◽  
Kunio Yokokura ◽  
Mitsutaka Homma
Keyword(s):  
Metal Carbide ◽  
Contact Materials ◽  
Carbide Composite ◽  
Composite Contact

A study of current chopping characteristics in metal-carbide composite contact materials

2012 ◽  
Vol 179 (1) ◽  
pp. 15-20
Author(s):  
Atsushi Yamamoto ◽  
Takashi Kusano ◽  
Tsutomu Okutomi ◽  
Kunio Yokokura ◽  
Mitsutaka Homma
Keyword(s):  
Metal Carbide ◽  
Contact Materials ◽  
Carbide Composite ◽  
Composite Contact

scholarly journals Thermal, mechanical, and electrical properties of LSCo/mullite composite contact materials for solid oxide fuel cells

2020 ◽  
Vol 17 (5) ◽  
pp. 2051-2061
Author(s):  
Yeong‐Shyung Chou ◽  
Nathan Canfield ◽  
Jeff F. Bonnett ◽  
John S. Hardy ◽  
Jeffry W. Stevenson
Keyword(s):  
Fuel Cells ◽  
Electrical Properties ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Contact Materials ◽  
Mechanical And Electrical Properties ◽  
Composite Contact

Migration of Composite Contact Materials Components at High Current Arcing

2007 ◽  
Vol E90-C (7) ◽  
pp. 1377-1384 ◽  
Author(s):  
E. WALCZUK ◽  
P. BORKOWSKI ◽  
K. FRYDMAN ◽  
D. WOJCIK-GRZYBEK ◽  
W. BUCHOLC ◽  
...  
Keyword(s):  
High Current ◽  
Contact Materials ◽  
Composite Contact

Superconducting graphite-transition metal carbide composite fibers via decomposition of polymer complexes

1988 ◽  
Vol 23 (2) ◽  
pp. 255-261 ◽  
Author(s):  
M.M. Labes ◽  
J.H. Chen ◽  
C.L. Lin ◽  
G.H. Myer ◽  
D. Ivkovich
Keyword(s):  
Transition Metal ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
Composite Fibers ◽  
Polymer Complexes ◽  
Carbide Composite

scholarly journals The Influence of Mechanical Alloying and Plastic Consolidation on the Resistance to Arc Erosion of the Ag–Re Composite Contact Material

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3297
Author(s):  
Dariusz Kołacz ◽  
Stanisław Księżarek ◽  
Piotr Borkowski ◽  
Joanna Karwan-Baczewska ◽  
Marcin Lis ◽  
...  
Keyword(s):  
Mechanical Alloying ◽  
Alternating Current ◽  
Constant Current ◽  
Contact Material ◽  
Contact Materials ◽  
Arc Erosion ◽  
Die Forging ◽  
Bulk Chemical ◽  
Composite Contact ◽  
Dc Current

The article presents the influence of mechanical alloying and plastic consolidation on the resistance to arc erosion of the composite Ag–Re material against the selected contact materials. The following composites were selected for the tests: Ag90Re10, Ag95Re5, Ag99Re1 (bulk chemical composition). Ag–Re materials were made using two methods. In the first, the materials were obtained by mixing powders, pressing, sintering, extrusion, drawing, and die forging, whereas, in the second, the process of mechanical alloying was additionally used. The widely available Ag(SnO2)10 and AgNi10 contact materials were used as reference materials. The reference AgNi10 material was made by powder metallurgy in the process of mixing, pressing, sintering, extrusion, drawing, and die forging, while the Ag(SnO2)10 composite was obtained by spraying AgSniBi alloy with water, and then the powder was pressed, oxidized internally, sintered, extruded into wire, and drawn and die forged. The tests of electric arc resistance were carried out for loads with direct current (DC) and alternating current (AC). For alternating current (I = 60 A, U = 230 V), 15,000 switching cycles were made, while, for constant current 50,000 (I = 10 A, U = 550 V). A positive effect of the mechanical alloying process and the addition of a small amount of rhenium (1% by mass) on the spark erosion properties of the Ag–Re contact material was found. When DC current of 10 A was used, AgRe1 composite was found to be more resistant than commonly used contact materials (AgNi10 and Ag(SnO2)10).

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