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Microstructure and properties of Ag/SnO2 functional material manufactured by selective laser melting 被引量:6

Microstructure and properties of Ag/SnO2 functional material manufactured by selective laser melting
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摘要 Ag/SnO2,as a promising and environment-friendly electrical contact material,is widely applied in low-voltage apparatus.But the properties of Ag/SnO2 composites is difficult to improve due to the poor distribution phases and difficult component design.In this work,the Ag/SnO2 composites are prepared by selective laser melting.To get better performance,Ag/SnO2 composites with different energy density were studied.The microstructure was observed by field emission scanning electron microscope.In addition,reinforced SnO2 phase was characterized by X-ray diffraction and transmission electron microscope.The results indicated that the microstructure,relative density and hardness of are influenced by energy density,while Ag/SnO2 composites with homogeneous microstructure,high relative density,higher hardness and lower electrical resistivity can be obtained by proper energy density(E?68 J/mm^3). Ag/SnO2, as a promising and environment-friendly electrical contact material, is widely applied in low-voltage apparatus. But the properties of Ag/SnO2 composites is difficult to improve due to the poor distribution phases and difficult component design. In this work, the Ag/SnO2 composites are prepared by selective laser melting. To get better performance, Ag/SnO2 composites with different energy density were studied. The microstructure was observed by field emission scanning electron microscope. In addition, reinforced SnO2 phase was characterized by X-ray diffraction and transmission electron microscope. The results indicated that the microstructure, relative density and hardness of are influenced by energy density, while Ag/SnO2 composites with homogeneous microstructure, high relative density, higher hardness and lower electrical resistivity can be obtained by proper energy density(E=68 J/mm3).
出处 《Nano Materials Science》 CAS 2019年第3期208-214,共7页 纳米材料科学(英文版)
基金 sponsored by the Natural Science Foundation of China (Grant nos. 51775208) the Hubei Science Fund for Distinguished Young Scholars (No. 0216110085) the National Key Research and Development Program “Additive Manufacturing and Laser Manufacturing”(No. 2016YFB1100101) Wuhan Morning Light Plan of Youth Science and Technology (No. 0216110066) the Academic frontier youth team at Huazhong University of Science and Technology (HUST)
关键词 SELECTIVE laser MELTING AG/SNO2 COMPOSITES Electrical CONTACT material Selective laser melting Ag/SnO2 Composites Electrical contact material
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