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- W2942231504 abstract "In this paper, the influence of Nb2O5 single-doping and MgO/Nb2O5 co-doping on the densification, microstructure and wear resistance of Al2O3 has been investigated. The results show that Nb2O5 single-doping can increase the density of alumina effectively, but excessive Nb2O5 will lead to abnormal grain growth. Comparing with Nb2O5 single-doping, MgO/Nb2O5 co-doping can further increase the density and suppress the abnormal grain growth of the alumina. Meanwhile, the co-doped samples also show much lower wear rates. Typically, when 500 ppm MgO/1000 ppm Nb2O5 co-doped, the alumina ceramics has a minimum wear rate of 0.01‰, which is about 1/5 of the alumina ceramics with 1000 ppm Nb2O5 single-doped. The inhibiting effect of co-doping on abnormal grain growth and the reasons for the decrease of wear rate are also discussed." @default.
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- W2942231504 date "2019-10-01" @default.
- W2942231504 modified "2023-09-23" @default.
- W2942231504 title "Effect of Nb2O5 and MgO/Nb2O5 doping on densification, microstructure and wear resistance of alumina" @default.
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- W2942231504 doi "https://doi.org/10.1016/j.ceramint.2019.04.189" @default.
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