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

页码：239 / 242

页数：4

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