典型文献
High-entropy(Ca0.2Sr0.2Ba0.2La0.2Pb0.2)TiO3 perovskite ceramics with A-site short-range disorder for thermoelectric applications
文献摘要:
Novel high-entropy perovskite-type(Ca0.2Sr0.2Ba0.2La0.2Pb0.2)TiO3(CSBLP)ceramics with cubic structure of Pm-3m space group were successful prepared by solid-state reaction method.Results of XRD,SEM-EDS,HRTEM confirmed a homogeneous distribution and equimolar arrangement of multicomponent cations on the A-site.The high-entropy CSBLP ceramics showed long-range structural order and short-range chemical disorder with widely dispersed nanoscale grains varying sizes of 4-6 nm in the microstructure.Because of increased configurational entropy,the CSBLP ceramic has an enhanced Seebeck coefficient(|S|=272 μV/K at 1073 K)and low thermal conductivity(κ=1.75 W/m·K at 1073 K)when annealed at 1300℃.This work demonstrates the possibility of effectively reducing thermal conductivity and improv-ing the performance of thermoelectric oxides through high-entropy composition design.
文献关键词:
中图分类号:
作者姓名:
Ping Zhang;Zhihao Lou;Mengjie Qin;Jie Xu;Jiatong Zhu;Zongmo Shi;Qian Chen;Michael J.Reece;Haixue Yan;Feng Gao
作者机构:
State Key Laboratory of Solidification Processing,MIIT Key Laboratory of Radiation Detection Materials and Devices,School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China;NPU-QMUL Joint Research Institute of Advanced Materials and Structure,Northwestern Polytechnical University,Xi'an 710072,China;School of Engineering and Materials Science,Queen Mary University of London,London E1 4NS,United Kingdom
文献出处:
引用格式:
[1]Ping Zhang;Zhihao Lou;Mengjie Qin;Jie Xu;Jiatong Zhu;Zongmo Shi;Qian Chen;Michael J.Reece;Haixue Yan;Feng Gao-.High-entropy(Ca0.2Sr0.2Ba0.2La0.2Pb0.2)TiO3 perovskite ceramics with A-site short-range disorder for thermoelectric applications)[J].材料科学技术(英文版),2022(02):182-189
A类:
2La0,2Pb0,CSBLP
B类:
High,entropy,Ca0,2Sr0,2Ba0,TiO3,perovskite,ceramics,site,short,disorder,thermoelectric,applications,Novel,high,type,cubic,Pm,3m,space,group,were,successful,prepared,by,solid,state,reaction,method,Results,EDS,HRTEM,confirmed,homogeneous,distribution,equimolar,arrangement,multicomponent,showed,long,structural,chemical,widely,dispersed,nanoscale,grains,varying,sizes,microstructure,Because,increased,configurational,has,enhanced,Seebeck,coefficient,low,thermal,conductivity,when,annealed,This,work,demonstrates,possibility,effectively,reducing,improv,performance,oxides,through,composition,design
AB值:
0.564589
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