scholarly journals Multipurpose setup used to characterize tribo-electrical properties of electrical contact materials

MethodsX ◽  
2021 ◽  
Vol 8 ◽  
pp. 101498
Author(s):  
Bruno Alderete ◽  
Rafael Puyol ◽  
Sebastian Slawik ◽  
Eric Espin ◽  
Frank Mücklich ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Electrical Contact ◽  
Contact Materials ◽  
Electrical Contact Materials

Study on Ag/SnO2/TiO2 Electrical Contact Materials Prepared by Liquid Phase In Situ Chemical Route

2014 ◽  
Vol 936 ◽  
pp. 486-490 ◽  
Author(s):  
Yan Cai Zhu ◽  
Jing Qin Wang ◽  
Li Qiang An ◽  
Hai Tao Wang
Keyword(s):  
Liquid Phase ◽  
Electrical Properties ◽  
Electrical Contact ◽  
Electrical Performance ◽  
Powder Metallurgy Method ◽  
Chemical Route ◽  
Contact Materials ◽  
Electrical Contact Materials ◽  
Distribution State

In order to improve the machinability and electrical performance of the Ag electrical contact materials. A new kind of nano-Ag/SnO2-TiO2 electrical contact materials were prepared by liquid phase in-situ chemical route. The distribution state of elements titanium in copper and their effects on the microstructures and properties have been studied. The results of SEM show that SnO2-TiO2 powders are small, uniform and with no obvious phenomenon of reunion. At last, Ag/SnO2-TiO2 electrical contact materials were prepared by powder metallurgy method and electrical performance were done. Test results show that the electrical properties of Ag/SnO2-TiO2 are superior to the electrical properties of Ag/SnO2. Hence Ag/SnO2-TiO2 may become a new contact material which can replace Ag/SnO2.

Processing and Electrical Properties of Nano-Al2O3/Cu Composites

2017 ◽  
Vol 898 ◽  
pp. 984-991 ◽  
Author(s):  
Yi Liu ◽  
Jin Feng Leng ◽  
Zhi Wei Li ◽  
Pei Yu Zhang ◽  
Qiu Rui Wu
Keyword(s):  
Electrical Properties ◽  
Electrical Contact ◽  
Electrical Equipment ◽  
Copper Matrix ◽  
Vacuum Arc ◽  
Matrix Composites ◽  
Contact Materials ◽  
Mechanical And Electrical Properties ◽  
Electrical Contact Materials ◽  
Pure Cu

Copper matrix composites (CMCs) are widely used in electrical equipment and electrical contact materials due to their excellent electrical properties. Al2O3 powders are widely used as a reinforcing agent to enhance mechanical properties of MMCs. The xAl2O3/Cu (x =0, 0.2, 0.5, 0.7, and 1.0wt. %) composites were prepared via vacuum arc melting method. The mechanical and electrical properties were obtained by measuring the hardness and conductivity. The morphology of copper and Al2O3/Cu composites was characterized by optical microscopy (OM) and scanning electron microscopy (SEM). With the addition of Al2O3 from 0.2 wt. % to 1.0 wt. %, the relative densities of composites decreased from 98.5% to 97.0%. The hardness of the composites increased with increase in the Al2O3 powders content. The hardness of 1.0Al2O3/Cu composites was 57.9 HB, which was higher than that of pure Cu by 18.6%.. With the addition of Al2O3, the IACS% of Al2O3/Cu composites decreased from 88.97 to 86.16.

Material transfer behavior of AgTiB2 and AgSnO2 electrical contact materials under different currents

2017 ◽  
Vol 114 ◽  
pp. 139-148 ◽  
Author(s):  
Hangyu Li ◽  
Xianhui Wang ◽  
Xiuhua Guo ◽  
Xiaohong Yang ◽  
Shuhua Liang
Keyword(s):  
Electrical Contact ◽  
Material Transfer ◽  
Contact Materials ◽  
Transfer Behavior ◽  
Electrical Contact Materials

Properties of doped Ag–SnO2 electrical contact materials with different SnO2 particle sizes

2018 ◽  
Vol 6 (1) ◽  
pp. 016558 ◽  
Author(s):  
Wang Haitao ◽  
Zhang Mei ◽  
Yang Menglin ◽  
Wang Jingqin ◽  
Zhu Yancai
Keyword(s):  
Electrical Contact ◽  
Particle Sizes ◽  
Contact Materials ◽  
Sno2 Particle ◽  
Electrical Contact Materials

scholarly journals Microstructure refinement and physical properties of Ag-SnO2 based contact materials prepared by high-energy ball milling

2013 ◽  
Vol 45 (2) ◽  
pp. 173-180 ◽  
Author(s):  
V. Cosovic ◽  
M. Pavlovic ◽  
A. Cosovic ◽  
P. Vulic ◽  
M. Premovic ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Physical Properties ◽  
Ball Milling ◽  
Electrical Contact ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Powder Metallurgy Method ◽  
Contact Materials ◽  
Energy Ball ◽  
Electrical Contact Materials

High energy ball milling was used in order to improve dispersion of metal oxide in Ag-SnO2 electrical contact materials. The processed Ag-SnO2 (92:8) and Ag-SnO2In2O3 (87.8:9.30:2.9) powder mixtures were subsequently consolidated to bulk solid pieces by conventional powder metallurgy method. The characterization of the prepared samples included microstructural analysis by XRD and SEM, as well as measurements of physical properties such as density, hardness and electrical conductivity. The results of X-Ray analysis point to reduction of crystallite size after milling of about ten times. Microstructures of sintered Ag-SnO2 and Ag-SnO2 In2O3 materials display very fine dispersion of the oxide components in silver matrix. Somewhat higher uniformity was obtained for Ag-SnO2 In2O3 material which was illustrated by results of SEM analysis and more consistent microhardness values. The obtained values of studied physical properties were found to be in accordance with observed higher dispersion of metal oxide particles and comparable to properties of commercial electrical contact materials of this type.

scholarly journals Nanostructured W-Cu Electrical Contact Materials Processed by Hot Isostatic Pressing

2014 ◽  
Vol 125 (2) ◽  
pp. 348-352 ◽  
Author(s):  
V. Tsakiris ◽  
M. Lungu ◽  
E. Enescu ◽  
D. Pavelescu ◽  
Gh. Dumitrescu ◽  
...  
Keyword(s):  
Electrical Contact ◽  
Hot Isostatic Pressing ◽  
Contact Materials ◽  
Isostatic Pressing ◽  
Electrical Contact Materials
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