首站-论文投稿智能助手
典型文献
High-entropy(Y0.2Gd0.2Dy0.2Er0.2Yb0.2)2Hf2O7 ceramic:A promising thermal barrier coating material
文献摘要:
Thermal barrier coating(TBC)materials perform an increasingly important role in the thermal or chemical protection of hot components in a gas turbine.In this study,a novel high entropy hafnate(Y0.2Gd0.2Dy0.2Er0.2Yb0.2)2Hf2O7 was synthesized by solution combustion method and investigated as a potential TBC layer.The as-synthesized(Y0.2Gd0.2 Dy0.2 Er0.2 Yb0.2)2 Hf2O7 possesses a pure single dis-ordered fluorite phase with a highly homogeneous distribution of rare earth(RE)cations,exhibiting prominent phase stability and excellent chemical compatibility with Al2O3 even at 1300℃.Moreover,(Y0.2Gd0.2Dy0.2Er0.2Yb0.2)2Hf2O7 demonstrates a more sluggish grain growth rate than Y2Hf2O7.The ther-mal conductivity of(Y0.2Gd0.2Dy0.2Er0.2Yb0.2)2Hf2O7(0.73-0.93 W mr-1 K-1)is smaller than those of com-ponents RE2Hf2O7 and many high entropy TBC materials.Beside,the calculated thermal expansion coef-ficient(TEC)of(Y0.2Gd0.2Dy0.2Er0.2Yb0.2)2Hf2O7(10.68×10-6/K,1100℃)is smaller than that of yttria-stabilized zirconia(YSZ).Based on the results of this work,(Y0.2Gd0.2Dy0.2Er0.2Yb0.2)2Hf2O7 is suitable for the next generation TBC materials with outstanding properties.
文献关键词:
作者姓名:
Longkang Cong;Wei Li;Jiancheng Wang;Shengyue Gu;Shouyang Zhang
作者机构:
State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China;Department of Materials Physics,School of Science,Xi'an University of Posts and Telecommunications,Xi'an 710121,China
引用格式:
[1]Longkang Cong;Wei Li;Jiancheng Wang;Shengyue Gu;Shouyang Zhang-.High-entropy(Y0.2Gd0.2Dy0.2Er0.2Yb0.2)2Hf2O7 ceramic:A promising thermal barrier coating material)[J].材料科学技术(英文版),2022(06):199-204
A类:
2Dy0,2Hf2O7,hafnate,Hf2O7,Y2Hf2O7,RE2Hf2O7
B类:
High,entropy,Y0,2Gd0,2Er0,2Yb0,ceramic,promising,thermal,barrier,coating,Thermal,TBC,materials,perform,increasingly,important,role,chemical,protection,hot,components,gas,turbine,In,this,study,novel,was,synthesized,by,solution,combustion,method,investigated,potential,layer,possesses,pure,single,ordered,fluorite,phase,highly,homogeneous,distribution,rare,earth,cations,exhibiting,prominent,stability,excellent,compatibility,Al2O3,even,Moreover,demonstrates,more,sluggish,grain,growth,than,conductivity,mr,smaller,those,many,Beside,calculated,expansion,coef,ficient,TEC,that,yttria,stabilized,zirconia,YSZ,Based,results,work,suitable,next,generation,outstanding,properties
AB值:
0.429533
相似文献
Self-ball milling strategy to construct high-entropy oxide coated LiNi0.8Co0.1Mn0.1O2 with enhanced electrochemical performance
Kai YUAN;Tianzhe TU;Chao SHEN;Lin ZHOU;Jixuan LIU;Jing LI;Keyu XIE;Guojun ZHANG-State Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Institute of Functional Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;Research&Development Institute of Northwestern Polytechnical University in Shenzhen,Northwestern Polytechnical University,Shenzhen 518057,China;State Key Laboratory of Environment-friendly Energy Materials,School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China
Progress in ceramic materials and structure design toward advanced thermal barrier coatings
Zhi-Yuan WEI;Guo-Hui MENG;Lin CHEN;Guang-Rong LI;Mei-Jun LIU;Wei-Xu ZHANG;Li-Na ZHAO;Qiang ZHANG;Xiao-Dong ZHANG;Chun-Lei WAN;Zhi-Xue QU;Jing FENG;Ling LIU;Hui DONG;Ze-Bin BAO;Xiao-Feng ZHAO;Xiao-Feng ZHANG;Lei GUO;Liang WANG;Bo CHENG;Wei-Wei ZHANG;Peng-Yun XU;Guan-Jun YANG;Hong-Neng CAI;Hong CUI;You WANG;Fu-Xing YE;Zhuang MA;Wei PAN;Min LIU;Ke-Song ZHOU;Chang-Jiu LI-State Key Laboratory for Mechanical Behavior of Materials,School of Materials Science and Engineering,Xi'an Jiaotong University,Xi'an 710049,China;State Key Laboratory for Strength and Vibration of Mechanical Structures,Department of Engineering Mechanics,School of Aerospace Engineering,Xi'an Jiaotong University,Xi'an 710049,China;Xi'an Aerospace Composite Research Institute,Xi'an 710025,China;AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;State Key Laboratory of New Ceramics&Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;Faculty of Materials and Manufacturing,Key Laboratory of Advanced Functional Materials,Education Ministry of China,Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China;Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China;School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;Xi'an Key Laboratory of High Performance Oil and Gas Field Materials,School of Materials Science and Engineering,Xi'an Shiyou University,Xi'an 710065,China;Shi-Changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming,Shanghai Jiao Tong University,Shanghai 200240,China;National Engineering Laboratory for Modern Materials Surface Engineering Technology,the Key Lab of Guangdong for Modern Surface Engineering Technology,Institute of New Materials,Guangdong Academy of Sciences,Guangzhou 510650,China;School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China;Integrated Computational Materials Research Centre,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China;State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal,Lanzhou University of Technology,Lanzhou 730050,China;School of Materials Science and Engineering,Chang'an University,Xi'an 710064,China;Department of Mechanical and Electrical Engineering,Ocean University of China,Qingdao 266100,China
Influence of order-disorder transition on the mechanical and thermophysical properties of A2B2O7 high-entropy ceramics
Jiatong ZHU;Mingyue WEI;Jie XU;Runwu YANG;Xuanyu MENG;Ping ZHANG;Jinlong YANG;Guangzhong LI;Feng GAO-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;State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;State Key Laboratory of Porous Metal Materials,Northwest Institute for Nonferrous Metal Research,Xi'an 710016,China
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。