Nanohardness and elastic anisotropy of ZrB2 crystals

被引：31
|
作者：
Csanadi, Tamas [1 ]
Grasso, Salvatore [2 ]
Kovalcikova, Alexandra [1 ]
Dusza, Jan [1 ,3 ]
Reece, Mike [2 ]
机构：
[1] Slovak Acad Sci, Inst Mat Res, Kosice 04353, Slovakia
[2] Queen Mary Univ London, Sch Engn & Mat Sci, London E1 4NS, England
[3] Obuda Univ, Donat Banki Fac Mech & Safety Engn, H-1081 Budapest, Hungary
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2016年 / 36卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
ZrB2; crystal; Nanoindentation; Hardness; Indentation modulus; Elastic anisotropy; SINGLE-CRYSTALS; INDENTATION EXPERIMENTS; MECHANICAL-PROPERTIES; ZIRCONIUM; HARDNESS; MICROSTRUCTURE; DEFORMATION; DIBORIDES; CERAMICS; MODULUS;
D O I：
10.1016/j.jeurceramsoc.2015.09.012
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：
Room temperature instrumented nano-indentation with a Berkovich tip was carried out on polycrystalline ZrB2. The orientation of the individual grains was mapped using electron backscattered diffraction. The anisotropy in properties was similar to 20% and similar to 7% for nanohardness and indentation modulus, respectively. The nanohardness decreased from basal towards prismatic orientation with a minimum at similar to 50-60 degrees and the indentation modulus increased with a maximum at similar to 70-80 degrees. The indentation modulus anisotropy, calculated by Vlassak-Nix model, shows similar tendency as the experimental values. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：239 / 242
页数：4
相关论文
共 50 条
  • [1] Slip activation controlled nanohardness anisotropy of ZrB2 ceramic grains
    Csanadi, Tamas
    Kovalcikova, Alexandra
    Dusza, Jan
    Fahrenholtz, William G.
    Hilmas, Gregory E.
    ACTA MATERIALIA, 2017, 140 : 452 - 464
  • [2] Temperature dependence of thermal expansion and elastic constants of single crystals of ZrB2 and the suitability of ZrB2 as a substrate for GaN film
    Okamoto, NL
    Kusakari, M
    Tanaka, K
    Inui, H
    Yamaguchi, M
    Otani, S
    JOURNAL OF APPLIED PHYSICS, 2003, 93 (01) : 88 - 93
  • [3] Temperature dependence of thermal expansion and elastic constants of single crystals of ZrB2 and the suitability of ZrB2 as a substrate for GaN film
    Okamoto, N.L., 1600, American Institute of Physics Inc. (93):
  • [4] PLASTIC DEFORMATION OF ZRB2 SINGLE CRYSTALS
    HAGGERTY, JS
    LEE, DW
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1971, 54 (11) : 572 - &
  • [5] Pressure effects on elastic and thermodynamic properties of ZrB2
    Hongzhi Fu
    Ying Lu
    Wenfang Liu
    Tao Gao
    Journal of Materials Science, 2009, 44 : 5618 - 5626
  • [6] Pressure effects on elastic and thermodynamic properties of ZrB2
    Fu, Hongzhi
    Lu, Ying
    Liu, Wenfang
    Gao, Tao
    JOURNAL OF MATERIALS SCIENCE, 2009, 44 (20) : 5618 - 5626
  • [7] High temperature microhardness of ZrB2 single crystals
    Xuan, Y
    Chen, CH
    Otani, S
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2002, 35 (20) : L98 - L100
  • [8] STRUCTURE AND ORIENTATION OF SECOND PHASE IN ZRB2 CRYSTALS
    LEOMBRUNO, WJ
    HAGGERTY, JS
    OBRIEN, JL
    MATERIALS RESEARCH BULLETIN, 1968, 3 (04) : 361 - +
  • [9] Mechanical and thermal properties of single crystals of ZrB2
    Okamoto, NL
    Kusakari, M
    Tanaka, K
    Inui, H
    Yamaguchi, M
    Otani, S
    DEFECT PROPERTIES AND RELATED PHENOMENA IN INTERMETALLIC ALLOYS, 2003, 753 : 83 - 88
  • [10] Elastic and thermodynamic properties of ZrB2: First principle study
    Fu, Hongzhi
    Teng, Min
    Hong, Xinhua
    Lu, Ying
    Gao, Tao
    PHYSICA B-CONDENSED MATTER, 2010, 405 (03) : 846 - 851
12345