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Simulation and experimental study on the properties of Fe, Y co‐doped AgSnO 2 contact materials
Author(s) -
Zhang Ying,
Wang Jingqin,
Kang Huiling
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22893
Subject(s) - doping , contact resistance , materials science , reliability (semiconductor) , anisotropy , powder metallurgy , conductivity , electrical resistivity and conductivity , composite material , electrical engineering , thermodynamics , microstructure , optoelectronics , engineering , chemistry , optics , physics , power (physics) , layer (electronics)
With the aims of environmental protection, manufacturing cost, and reliability of contact materials, we calculate the electrical and mechanical properties of single‐doped and co‐doped SnO 2 contact materials based on density functional theory using the Materials Studio software. By analyzing the energy band, density of states, and elastic constants, our results show that co‐doping leads to stronger interactions among the different atoms, resulting in the highest relative conductivity, decrease in hardness, smallest index of universal elastic anisotropy, good processing performance, and the highest crack resistance. Finally, in the experiment, single and co‐doped SnO 2 powders were prepared by the sol–gel technique, and single and co‐doped AgSnO 2 contacts were prepared by powder metallurgy. The arcing energy, contact resistance, and the actual conductivity and hardness were measured. The results of simulation and experiment match well. It is of great significance to promote environmental protection, low cost, and high reliability of AgSnO 2 contacts. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.