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 phas...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).展开更多
本文研究了掺杂纳米氧化物的 Ag Sn O2 触头材料的制备过程。分析了溶胶 -凝胶法制备的纳米Sn O2 - Ti O2 的结构与性能的关系 ,由于 Ti4+离子能够进入 Sn O2 晶格 ,使触头导电率得以提高。通过对纳米 Ag Sn O2 触头材料与粉末法制备的 ...本文研究了掺杂纳米氧化物的 Ag Sn O2 触头材料的制备过程。分析了溶胶 -凝胶法制备的纳米Sn O2 - Ti O2 的结构与性能的关系 ,由于 Ti4+离子能够进入 Sn O2 晶格 ,使触头导电率得以提高。通过对纳米 Ag Sn O2 触头材料与粉末法制备的 Ag Sn O2 触头材料性能的对比 ,得出纳米 Ag Sn O2展开更多
基金sponsored by the Natural Science Foundation of China (Grant nos. 51775208)the Hubei Science Fund for Distinguished Young Scholars (No. 0216110085)+2 种基金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)
文摘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).
文摘本文研究了掺杂纳米氧化物的 Ag Sn O2 触头材料的制备过程。分析了溶胶 -凝胶法制备的纳米Sn O2 - Ti O2 的结构与性能的关系 ,由于 Ti4+离子能够进入 Sn O2 晶格 ,使触头导电率得以提高。通过对纳米 Ag Sn O2 触头材料与粉末法制备的 Ag Sn O2 触头材料性能的对比 ,得出纳米 Ag Sn O2
