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Study on the Densification and Mechanical Properties of Cu/(NiFe_2O_4-10NiO) Cermets Doped with CaO

Gang Zhang

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Abstract

Cu/(NiFe2O4-10NiO) cermets doped with CaO were fabricated by cold pressing-sintering,and their relative densities and mechanical properties were studied.The results showed that the relative densities of Cu/(NiFe2O4-10NiO) cermets containing Cu 5%,10% and 17%,which were sintered at 1 200℃ and doped with 2% CaO(mass fractions),were 97.63%,96.10% and 95.05% respectively.Compared with the cermet of undoped with CaO at the same condition,the relative density of Cu/(NiFe2O4-10NiO) cermet of doped CaO was improved about 15%,which was close to the cermet of undoped with CaO sintered at 1 250℃.The effect on the bending strength and thermal shock resistance of Cu/(NiFe2O4-10NiO) cermet doped with 2% CaO was less when their relative densities were near.

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Cu/(NiFe2O4-10NiO) cermets doped with CaO were fabricated by cold pressing-sintering,and their relative densities and mechanical properties were studied.The results showed that the relative densities of Cu/(NiFe2O4-10NiO) cermets containing Cu 5%,10% and 17%,which were sintered at 1 200℃ and doped with 2% CaO(mass fractions),were 97.63%,96.10% and 95.05% respectively.Compared with the cermet of undoped with CaO at the same condition,the relative density of Cu/(NiFe2O4-10NiO) cermet of doped CaO was improved about 15%,which was close to the cermet of undoped with CaO sintered at 1 250℃.The effect on the bending strength and thermal shock resistance of Cu/(NiFe2O4-10NiO) cermet doped with 2% CaO was less when their relative densities were near.

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Available abstract

Cu/(NiFe2O4-10NiO) cermets doped with CaO were fabricated by cold pressing-sintering,and their relative densities and mechanical properties were studied.The results showed that the relative densities of Cu/(NiFe2O4-10NiO) cermets containing Cu 5%,10% and 17%,which were sintered at 1 200℃ and doped with 2% CaO(mass fractions),were 97.63%,96.10% and 95.05% respectively.Compared with the cermet of undoped with CaO at the same condition,the relative density of Cu/(NiFe2O4-10NiO) cermet of doped CaO was improved about 15%,which was close to the cermet of undoped with CaO sintered at 1 250℃.The effect on the bending strength and thermal shock resistance of Cu/(NiFe2O4-10NiO) cermet doped with 2% CaO was less when their relative densities were near.

Key concepts: Cermet, Relative density, Materials science, Sintering, Doping, Flexural strength, Thermal shock, Hot pressing

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Study on the Densification and Mechanical Properties of Cu/(NiFe_2O_4-10NiO) Cermets Doped with CaO — Research Paper | ScholarLens