Metal deficient AlB2-type(Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)1-6B2 high-entropy diborides with high hardness

被引：1
|
作者：
Yang, Wuzhang [1 ,2 ,3 ]
Zhu, Qinqing [1 ,2 ,3 ]
Xiao, Guorui [2 ,3 ,4 ]
Ren, Zhi [2 ,3 ]
机构：
[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[2] Westlake Univ, Sch Sci, Dept Phys, 18 Shilongshan Rd, Hangzhou 310024, Peoples R China
[3] Westlake Inst Adv Study, Inst Nat Sci, 18 Shilongshan Rd, Hangzhou 310024, Peoples R China
[4] Zhejiang Univ, Sch Phys, Hangzhou 310058, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2023年 / 49卷 / 03期
关键词：
High entropy diborides; AlB2-type; Metal deficiency; Vickers hardness; ZR;
D O I：
10.1016/j.ceramint.2022.11.100
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：
We report the synthesis and characterization of metal deficient (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)1-6B2 high-entropy diborides (HEBs). A single homogeneous AlB2-type phase is successfully obtained over the 6 range of 0.03 <= 6 <= 0.18. With increasing 6, the unit-cell volume exhibits a nonmonotonic variation with a maximum at 6 = 0.07. These metal-deficient HEBs possess high Vickers hardness of 16.6-18.9 GPa at a load of 9.8 N and their phase stability is attributed to the increased mixing entropy. Our results not only present the first series of metal-deficient AlB2-type HEBs, but also suggest the existence of similar multicomponent diborides.
引用
收藏
页码：5522 / 5526
页数：5
相关论文
共 50 条
  • [1] Textured and toughened high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C-SiCw ceramics
    Luo, Si-Chun
    Guo, Wei-Ming
    Zhou, Yu-Zhang
    Plucknett, Kevin
    Lin, Hua-Tay
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 94 : 99 - 103
  • [2] Textured and toughened high-entropy(Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C-SiCw ceramics
    Si-Chun Luo
    Wei-Ming Guo
    Yu-Zhang Zhou
    Kevin Plucknett
    Hua-Tay Lin
    JournalofMaterialsScience&Technology, 2021, 94 (35) : 99 - 103
  • [3] Preparation and properties of Ta fiber reinforced high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)B2-SiC composite ceramics
    Guo, Qilong
    Ying, Hao
    Yuan, Bowen
    Fan, Hengzhong
    Hua, Liang
    Liu, Ronghao
    Wang, Jing
    CERAMICS INTERNATIONAL, 2024, 50 (24) : 56070 - 56085
  • [4] Thermal and ablation properties of a high-entropy metal diboride: (Hf0.2Zr0.2Ti0.2Ta0.2Nb0.2)B2
    Hoque, Md Shafkat Bin
    Milich, Milena
    Akhanda, Md Sabbir
    Shivakumar, Sashank
    Hoglund, Eric R.
    Staicu, Dragos
    Qin, Mingde
    Quiambao-Tomko, Kathleen F.
    Tomko, John A.
    Braun, Jeffrey L.
    Gild, Joshua
    Olson, David H.
    Aryana, Kiumars
    Koh, Yee Rui
    Galib, Roisul
    Vlahovic, Luka
    Robba, Davide
    Gaskins, John T.
    Zebarjadi, Mona
    Luo, Jian
    Hopkins, Patrick E.
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2023, 43 (11) : 4581 - 4587
  • [5] Electromagnetic wave absorbing properties of TMCs (TM=Ti, Zr, Hf, Nb and Ta) and high entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C
    Zhou, Yanchun
    Zhao, Biao
    Chen, Heng
    Xiang, Huimin
    Dai, Fu-Zi
    Wu, Shijiang
    Xu, Wei
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 74 : 105 - 118
  • [6] Electromagnetic wave absorbing properties of TMCs(TM=Ti, Zr, Hf, Nb and Ta) and high entropy(Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C
    Yanchun Zhou
    Biao Zhao
    Heng Chen
    Huimin Xiang
    Fu-Zi Dai
    Shijiang Wu
    Wei Xu
    JournalofMaterialsScience&Technology, 2021, 74 (15) : 105 - 118
  • [7] Microstructures and oxidation mechanisms of (Zr0.2Hf0.2Ta0.2Nb0.2Ti0.2)B2 high-entropy ceramic
    Guo, Ruru
    Li, Zhijian
    Li, Lu
    Liu, Yu
    Zheng, Ruixiao
    Ma, Chaoli
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2022, 42 (05) : 2127 - 2134
  • [8] Effect of SiC on densification, microstructure and mechanical properties of high entropy diboride (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)B2
    Kombamuthu, Vasanthakumar
    Unsal, Hakan
    Chlup, Zdenek
    Tatarkova, Monika
    Kovalcikova, Alexandra
    Zhukova, Inga
    Hosseini, Naser
    Hicak, Michal
    Dlouhy, Ivo
    Tatarko, Peter
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2024, 44 (09) : 5358 - 5369
  • [9] Preparation and properties of Ta foil toughened high entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)B2-SiC layered structure composites
    Ying, Hao
    Guo, Qilong
    Yuan, Bowen
    Fan, Hengzhong
    Yan, Wei
    Zheng, Xiande
    Zhang, Jingqing
    Wu, Jingwei
    Liu, Ronghao
    MATERIALS TODAY COMMUNICATIONS, 2025, 42
  • [10] Preparation of (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C high-entropy ceramic nanopowders via liquid-phase precursor
    Xie, Chenyi
    Miao, Huaming
    Wan, Fan
    Wang, Yanfei
    Li, Duan
    Liu, Rongjun
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2024, 107 (07) : 5105 - 5114
12345