典型文献
Grain growth kinetics and densification mechanism of(TiZrHfVNbTa)C high-entropy ceramic under pressureless sintering
文献摘要：
The grain growth kinetics and densification mechanism of(TiZrHfVNbTa)C high-entropy carbide ceramic are investigated in this work.A single phase carbide with a rock-salt structure is formed until 2300℃,below which an apparent aggregation of V,Zr and Hf exists.It is associated with the slow diffusion rate of V element as well as the relatively poor solubility of VC in HfC(as well as ZrC).The grain growth mechanism gradually changes from surface diffusion to volume diffusion and then grain boundary dif-fusion with increasing sintering temperature.This is attributed to the variation of activation energy of grain growth.The densification mechanism is principally dominated by the mass transport through lat-tice diffusion with the activation energy of 839±53 kJ/mol.Through the design of two-step sintering,it is verified that the solid solution formation can effectively promote the densification process.
文献关键词：
中图分类号：
作者姓名：
Wen Zhang;Lei Chen;Chenguang Xu;Xuming Lv;Yujin Wang;Jiahu Ouyang;Yu Zhou
作者机构：
School of Materials Science and Engineering,Institute for Advanced Ceramics,Harbin Institute of Technology,Harbin 150001,China;National Key Laboratory of Science and Technology on Advanced Composites in Special Environment,Harbin Institute of Technology,Harbin 150001,China;Science and Technology on Particle Transport and Separation Laboratory,Tianjin 300180,China
文献出处：
引用格式：
[1]Wen Zhang;Lei Chen;Chenguang Xu;Xuming Lv;Yujin Wang;Jiahu Ouyang;Yu Zhou-.Grain growth kinetics and densification mechanism of(TiZrHfVNbTa)C high-entropy ceramic under pressureless sintering)[J].材料科学技术（英文版）,2022(15):57-64
A类：
TiZrHfVNbTa
B类：
Grain,growth,kinetics,densification,mechanism,high,entropy,ceramic,under,pressureless,sintering,grain,carbide,investigated,this,work,single,phase,rock,salt,structure,formed,until,below,which,apparent,aggregation,exists,It,associated,slow,diffusion,rate,element,well,relatively,poor,solubility,VC,HfC,ZrC,gradually,changes,from,surface,volume,then,boundary,increasing,temperature,This,attributed,variation,activation,energy,principally,dominated,by,mass,transport,through,tice,kJ,Through,design,two,step,verified,that,solid,solution,formation,can,effectively,promote,process
AB值：
0.553566
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