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典型文献
Effect of erbium doping on phase composition,mechanical and thermal properties of ZrO2-based ceramics
文献摘要:
ErxTi0.1Zr0.9-xO2-1.5x(x=0.04,0.05,0.06,0.07,0.08)ceramics were synthesized by a solid-state reaction method.The influence of the Er3+addition on the phase composition,Vickers hardness,fracture toughness,and thermal conductivity of this ceramic material was investigated.The X-ray diffraction results reveal that the c-ZrO2 content increases from 1.85 vol%to 33.89 vol%,and the percentage of t-ZrO2 decreases from 98.15 vol%to 66.11 vol%with the increase in Er3+content from 4 mol%to 8 mol%.Moreover,the addition of Er3+is beneficial to the volume expansion of the unit cell.At the same time,the incorporation of Er3+weakens the coordination of oxygen ions around the metal cations,resulting in a corresponding decrease in the tetragonality of the t-ZrO2.The Vickers hardness and fracture toughness of the ErxTi0.1Zr0.9-xO2-1.5x ceramics show increasing and decreasing trends,respectively.The thermal conductivity has a significant decline due to point defects caused by the Er3+doping.The 8ETZ ceramic exhibits the highest Vickers hardness(12.7 GPa),the lowest fracture toughness(7.6 MPa·m1/2),and the lowest average thermal conductivity(1.85 W/(mK))in the temperature range of 200-1000℃.All of the above properties are higher than those of the Y2O3-stabilized ZrO2 ceramic.
文献关键词:
作者姓名:
Zheng Cao;Shengli An;Xiwen Song
作者机构:
School of Metallurgy and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,Inner Mongolia University of Science and Technology,Baotou 014010,China;School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010,China
引用格式:
[1]Zheng Cao;Shengli An;Xiwen Song-.Effect of erbium doping on phase composition,mechanical and thermal properties of ZrO2-based ceramics)[J].稀土学报(英文版),2022(10):1628-1634
A类:
ErxTi0,1Zr0,Er3+addition,Er3+content,Er3+is,Er3+weakens,tetragonality,Er3+doping,8ETZ
B类:
Effect,erbium,phase,composition,mechanical,thermal,properties,ZrO2,ceramics,xO2,5x,were,synthesized,by,solid,state,reaction,method,influence,Vickers,hardness,fracture,toughness,conductivity,this,material,was,investigated,ray,diffraction,results,reveal,that,increases,from,percentage,decreases,Moreover,beneficial,volume,expansion,unit,cell,At,same,incorporation,coordination,oxygen,around,metal,cations,resulting,corresponding,show,increasing,decreasing,trends,respectively,significant,decline,due,point,defects,caused,exhibits,highest,GPa,lowest,m1,average,mK,temperature,range,All,above,are,higher,than,those,Y2O3,stabilized
AB值:
0.443441
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