典型文献
Single-phase formation mechanism and dielectric properties of sol-gel-derived Ba(Ti0.2Zr0.2Sn0.2Hf0.2Ce0.2)O3 high-entropy ceramics
文献摘要：
Single-phase Ba(Ti0.2Zr0.2Sn0.2Hf0.2Ce0.2)O3(BTZSHC)high-entropy ceramics(HECs)with the perovskite structure were successfully prepared via the sol-gel method.The results reveal that the as-prepared ce-ramics exhibit a single cubic phase belonging to the Pm3m space group.The high entropy is the driv-ing force of the formation of single-phase ceramics.A larger entropy(ΔSmix)and a negative enthalpy(ΔHmix)are conducive to the formation of single-phase compounds.Herein,ΔSmix=0.323R mole-1 andΔHmix=-43.88 kJ/mol.The sluggish-diffusion effect ensures the thermal stability of high-entropy sys-tems.Dielectric measurements reveal that the as-prepared BTZSHC high-entropy ceramics are relaxor ferroelectrics,and the degree of relaxor(γ)is 1.9.The relaxor behavior of the as-prepared ceramics can be ascribed to the relaxation and thermal evolution of their polar units(PUs).The findings of this work provide a theoretical basis and technical support for the preparation of single-phase high-entropy ceram-ics.
文献关键词：
中图分类号：
作者姓名：
Jia Liu;Cuiying Ma;Lianli Wang;Ke Ren;Hongpei Ran;Danni Feng;Huiling Du;Yiguang Wang
作者机构：
College of Materials Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;Institute of Advanced Structure Technology,Beijing Institute of Technology,Beijing 100081,China;State Key Laboratory of Advanced Materials and Electronic Components,Guangdong Fenghua Advanced Technology Holding Co.,Ltd.,Zhaoqing 526020,China
文献出处：
引用格式：
[1]Jia Liu;Cuiying Ma;Lianli Wang;Ke Ren;Hongpei Ran;Danni Feng;Huiling Du;Yiguang Wang-.Single-phase formation mechanism and dielectric properties of sol-gel-derived Ba(Ti0.2Zr0.2Sn0.2Hf0.2Ce0.2)O3 high-entropy ceramics)[J].材料科学技术（英文版）,2022(35):103-111
A类：
2Sn0,BTZSHC,ramics,Pm3m,Hmix,323R,ceram
B类：
Single,phase,formation,mechanism,dielectric,properties,sol,gel,derived,Ba,Ti0,2Zr0,2Hf0,2Ce0,O3,high,entropy,ceramics,HECs,perovskite,structure,were,successfully,prepared,via,method,results,reveal,that,exhibit,single,cubic,belonging,space,group,driv,force,larger,Smix,negative,enthalpy,conducive,compounds,Herein,mole,kJ,sluggish,diffusion,effect,ensures,thermal,stability,sys,tems,Dielectric,measurements,relaxor,ferroelectrics,degree,behavior,can,ascribed,relaxation,evolution,their,polar,units,PUs,findings,this,work,provide,theoretical,basis,technical,support,preparation
AB值：
0.471688
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
