Changes in physical properties such as density, porosity, hardness and electrical conductivity of the Ag-SnO2 and Ag-SnO2In2O3 electrical contact materials induced by introduction of metal oxide nanoparticles were investigated. Properties of the obtained silver- metal oxide nanoparticle composites are discussed and presented in comparison to their counterparts with the micro metal oxide particles as well as comparable Ag-SnO2WO3 and Ag-ZnO contact materials. Studied silver-metal oxide composites were produced by powder metallurgy method from very fine pure silver and micro- and nanoparticle metal oxide powders. Very uniform microstructures were obtained for all investigated composites and they exhibited physical properties that are comparable with relevant properties of equivalent commercial silver based electrical contact materials. Both Ag-SnO2 and Ag-SnO2 and Ag-SnO2In2O3 composites with metal oxide nanoparticles were found to have lower porosity, higher density and hardness than th...eir respective counterparts which can be attributed to better dispersion hardening i.e. higher degree of dispersion of metal oxide in silver matrix.
Keywords:
silver based electrical contacts / metal oxide nanoparticles / powder metallurgy / physical properties
Source:
Journal of Mining and Metallurgy B: Metallurgy, 2012, 48, 1, 131-141
TY - JOUR
AU - Ćosović, Vladan
AU - Talijan, Nadežda M.
AU - Živković, Dragana
AU - Minic, D.
AU - Zivkovic, Z.
PY - 2012
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/993
AB - Changes in physical properties such as density, porosity, hardness and electrical conductivity of the Ag-SnO2 and Ag-SnO2In2O3 electrical contact materials induced by introduction of metal oxide nanoparticles were investigated. Properties of the obtained silver- metal oxide nanoparticle composites are discussed and presented in comparison to their counterparts with the micro metal oxide particles as well as comparable Ag-SnO2WO3 and Ag-ZnO contact materials. Studied silver-metal oxide composites were produced by powder metallurgy method from very fine pure silver and micro- and nanoparticle metal oxide powders. Very uniform microstructures were obtained for all investigated composites and they exhibited physical properties that are comparable with relevant properties of equivalent commercial silver based electrical contact materials. Both Ag-SnO2 and Ag-SnO2 and Ag-SnO2In2O3 composites with metal oxide nanoparticles were found to have lower porosity, higher density and hardness than their respective counterparts which can be attributed to better dispersion hardening i.e. higher degree of dispersion of metal oxide in silver matrix.
PB - Technical Faculty, Bor
T2 - Journal of Mining and Metallurgy B: Metallurgy
T1 - Comparison of properties of silver-metal oxide electrical contact materials
VL - 48
IS - 1
SP - 131
EP - 141
DO - 10.2298/JMMB111101013C
ER -
@article{
author = "Ćosović, Vladan and Talijan, Nadežda M. and Živković, Dragana and Minic, D. and Zivkovic, Z.",
year = "2012",
abstract = "Changes in physical properties such as density, porosity, hardness and electrical conductivity of the Ag-SnO2 and Ag-SnO2In2O3 electrical contact materials induced by introduction of metal oxide nanoparticles were investigated. Properties of the obtained silver- metal oxide nanoparticle composites are discussed and presented in comparison to their counterparts with the micro metal oxide particles as well as comparable Ag-SnO2WO3 and Ag-ZnO contact materials. Studied silver-metal oxide composites were produced by powder metallurgy method from very fine pure silver and micro- and nanoparticle metal oxide powders. Very uniform microstructures were obtained for all investigated composites and they exhibited physical properties that are comparable with relevant properties of equivalent commercial silver based electrical contact materials. Both Ag-SnO2 and Ag-SnO2 and Ag-SnO2In2O3 composites with metal oxide nanoparticles were found to have lower porosity, higher density and hardness than their respective counterparts which can be attributed to better dispersion hardening i.e. higher degree of dispersion of metal oxide in silver matrix.",
publisher = "Technical Faculty, Bor",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "Comparison of properties of silver-metal oxide electrical contact materials",
volume = "48",
number = "1",
pages = "131-141",
doi = "10.2298/JMMB111101013C"
}
Ćosović, V., Talijan, N. M., Živković, D., Minic, D.,& Zivkovic, Z.. (2012). Comparison of properties of silver-metal oxide electrical contact materials. in Journal of Mining and Metallurgy B: Metallurgy
Technical Faculty, Bor., 48(1), 131-141.
https://doi.org/10.2298/JMMB111101013C
Ćosović V, Talijan NM, Živković D, Minic D, Zivkovic Z. Comparison of properties of silver-metal oxide electrical contact materials. in Journal of Mining and Metallurgy B: Metallurgy. 2012;48(1):131-141.
doi:10.2298/JMMB111101013C .
Ćosović, Vladan, Talijan, Nadežda M., Živković, Dragana, Minic, D., Zivkovic, Z., "Comparison of properties of silver-metal oxide electrical contact materials" in Journal of Mining and Metallurgy B: Metallurgy, 48, no. 1 (2012):131-141,
https://doi.org/10.2298/JMMB111101013C . .
