Pressureless sintering and properties of (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high-entropy ceramics: The effect of pyrolytic carbon

被引：72
作者：
Yu, Duo [1 ,3 ]
Yin, Jie [1 ]
Zhang, Buhao [1 ]
Liu, Xuejian [1 ]
Reece, Michael J. [4 ]
Liu, Wei [5 ,6 ]
Huang, Zhengren [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Queen Mary Univ London, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England
[5] Guangdong Polytech Normal Univ, Sch Mechatron Engn, Guangzhou 510635, Peoples R China
[6] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Peoples R China
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2021年 / 41卷 / 06期
基金：
上海市自然科学基金; 中国国家自然科学基金;
关键词：
High-entropy carbides; Solid solution; Mechanical properties; Thermal properties; Microstructure; MECHANICAL-PROPERTIES; PHASE-STABILITY; TAC; CARBIDE; HFC; DENSIFICATION; PERFORMANCE; COMPOSITES; TOUGHNESS; STRENGTH;
D O I：
10.1016/j.jeurceramsoc.2021.01.048
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high-entropy ceramic was successfully prepared by pressureless sintering at 2200 ?C. With increasing content of resin-derived-carbon, the density, and mechanical and thermal properties increased up to a maximum content of 2-4 wt% resin addition, after which further addition was detrimental. All specimens showed high strength (?347?36 MPa), with the highest value achieving 450?64 MPa, and fracture toughness significantly higher (>20 %) than those of the corresponding monocarbides and Ta0.5Hf0.5C, (Ta1/ 3Zr1/3Nb1/3)C. The thermal conductivity was approximately equivalent to the lowest value of the corresponding mono-carbides, which was assumed to be due to the lattice distortion effect.
引用
收藏
页码：3823 / 3831
页数：9
相关论文
共 48 条
[1]   Phase stability and distortion in high-entropy oxides [J].
Anand, G. ;
Wynn, Alex P. ;
Handley, Christopher M. ;
Freeman, Colin L. .
ACTA MATERIALIA, 2018, 146 :119-125
[2]   Charge-Induced Disorder Controls the Thermal Conductivity of Entropy-Stabilized Oxides [J].
Braun, Jeffrey L. ;
Rost, Christina M. ;
Lim, Mina ;
Giri, Ashutosh ;
Olson, David H. ;
Kotsonis, George N. ;
Stan, Gheorghe ;
Brenner, Donald W. ;
Maria, Jon-Paul ;
Hopkins, Patrick E. .
ADVANCED MATERIALS, 2018, 30 (51)
[3]   Processing and Properties of High-Entropy Ultra-High Temperature Carbides [J].
Castle, Elinor ;
Csanadi, Tamas ;
Grasso, Salvatore ;
Dusza, Jan ;
Reece, Michael .
SCIENTIFIC REPORTS, 2018, 8
[4]   Sintering behaviour, solid solution formation and characterisation of TaC, HfC and TaC-HfC fabricated by spark plasma sintering [J].
Cedillos-Barraza, Omar ;
Grasso, Salvatore ;
Al Nasiri, Nasrin ;
Jayaseelan, Daniel D. ;
Reece, Michael J. ;
Lee, William E. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2016, 36 (07) :1539-1548
[5]  
David Kingery W., 1976, INTRO CERAMICS, V17
[6]   High-temperature flexural strength performance of ternary high-entropy carbide consolidated via spark plasma sintering of TaC, ZrC and NbC [J].
Demirskyi, D. ;
Borodianska, H. ;
Suzuki, T. S. ;
Sakka, Y. ;
Yoshimi, K. ;
Vasylkiv, O. .
SCRIPTA MATERIALIA, 2019, 164 :12-16
[7]   Ultra-high temperature ceramics: Materials for extreme environments [J].
Fahrenholtz, William G. ;
Hilmas, Greg E. .
SCRIPTA MATERIALIA, 2017, 129 :94-99
[8]   Low-temperature sintering of single-phase, high-entropy carbide ceramics [J].
Feng, Lun ;
Fahrenholtz, William G. ;
Hilmas, Gregory E. .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2019, 102 (12) :7217-7224
[9]   Influence of Carbon Content on Surface Quality of Solid-State Sintered SiC Ceramics [J].
Gao, Jianqin ;
Chen, Jian ;
Liu, Guiling ;
Yan, Yongjie ;
Huang, Zhengren .
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2012, 9 (04) :847-852
[10]   Diffusion and solid solution formation between the binary carbides of TaC, HfC and ZrC [J].
Ghaffari, S. A. ;
Faghihi-Sani, M. A. ;
Golestani-Fard, F. ;
Nojabayy, M. .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2013, 41 :180-184
12345