Journal Home > Volume 5 , Issue 2
Journal of Advanced Ceramics 2016, 5(2): 153-158 https://doi.org/10.1007/s40145-016-0184-2
Rapid Communication | Open Access | Issue | Published: 14 June 2016

An abnormal displacement change during holding period in nanoindentation tests on zirconia dental ceramic

Show Author's Information Lixian ZHANGa,  Longquan SHAOb,  Lei LIc,  Danyu JIANGc( )
Department of Prosthodontics, the First Hospital of Yunnan Province, Kunming 650000, China
Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
Analysis and Testing Center for Inorganic Materials, the State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Shanghai 200050, China
Keywords:
zirconia, nanoindentation, displacement, elastic recovery
Cite this article:
ZHANG L, SHAO L, LI L, et al. An abnormal displacement change during holding period in nanoindentation tests on zirconia dental ceramic. Journal of Advanced Ceramics, 2016, 5(2): 153-158. https://doi.org/10.1007/s40145-016-0184-2
Download citation
EndNote(RIS)
BibTeX

764

Views

27

Downloads

Citations

5

Crossref

N/A

WoS

6

Scopus

0

CSCD

Abstract Full text About this article

An abnormal displacement change observed during the holding period in nanoindentation tests on a zirconia dental ceramic was reported in this paper. It was found that, at the initial stage of the holding period, the measured displacement versus time curves were similar in shape with the typical indentation creep curve reported in previous studies. As the holding lasted for long time, however, an evident reduction in displacement was observed for tests with high loading rate, implying that another unknown process, which might result in a decrease in displacement, would co-exist with creep during holding period. Elastic recovery was suggested to be one of the possible sources for such a displacement reduction. An empirical method was also proposed to eliminate the effect of this displacement reduction on the determination of hardness and Young’s modulus.


menu
Abstract
Full text
Outline
About this article

An abnormal displacement change during holding period in nanoindentation tests on zirconia dental ceramic

Show Author's information Lixian ZHANGa, Longquan SHAOb, Lei LIc, Danyu JIANGc( )
Department of Prosthodontics, the First Hospital of Yunnan Province, Kunming 650000, China
Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
Analysis and Testing Center for Inorganic Materials, the State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Shanghai 200050, China

Abstract

An abnormal displacement change observed during the holding period in nanoindentation tests on a zirconia dental ceramic was reported in this paper. It was found that, at the initial stage of the holding period, the measured displacement versus time curves were similar in shape with the typical indentation creep curve reported in previous studies. As the holding lasted for long time, however, an evident reduction in displacement was observed for tests with high loading rate, implying that another unknown process, which might result in a decrease in displacement, would co-exist with creep during holding period. Elastic recovery was suggested to be one of the possible sources for such a displacement reduction. An empirical method was also proposed to eliminate the effect of this displacement reduction on the determination of hardness and Young’s modulus.

Keywords: zirconia, nanoindentation, displacement, elastic recovery

References(18)

[1]
Oliver WC, Pharr GM. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. J Mater Res 1992, 7: 1564-1583.
DOI Google Scholar
[2]
Zeng K, Söderlund E, Giannakopoulos AE, et al. Controlled indentation: A general approach to determine mechanical properties of brittle materials. Acta Mater 1996, 44: 1127-1141.
DOI Google Scholar
[3]
Malzbender J, de With G, den Toonder J. The P–h2 relationship in indentation. J Mater Res 2000, 15: 1209-1212.
DOI Google Scholar
[4]
Fischer-Cripps AC. A simple phenomenological approach to nanoindentation creep. Mat Sci Eng A 2004, 385: 74-82.
DOI Google Scholar
[5]
Goodall R, Clyne TW. A critical appraisal of the extraction of creep parameters from nanoindentation data obtained at room temperature. Acta Mater 2006, 54: 5489-5499.
DOI Google Scholar
[6]
Shao L, Jiang D, Gong J. Nanoindentation characterization of the hardness of zirconia dental ceramics. Adv Eng Mater 2013, 15: 704-707.
DOI Google Scholar
[7]
Zhang Y, Allahkarami M, Hanan JC. Measuring residual stress in ceramic zirconia-porcelain dental crowns by nanoindentation. J Mech Behav Biomed 2012, 6: 120-127.
DOI Google Scholar
[8]
Meng Z, Jiang D. Measuring mechanical properties of zirconia dental crowns by nanoindentation. Key Eng Mater 2014, 591: 150-153.
DOI Google Scholar
[9]
Alao A-R, Yin L. Nanoindentation characterization of elasticity, plasticity and machinability of zirconia. Mat Sci Eng A 2015, 628: 181-187.
DOI Google Scholar
[10]
Wang F, Li JM, Huang P, et al. Nanoscale creep deformation in Zr-based metallic glass. Intermetallics 2013, 38: 156-160.
DOI Google Scholar
[11]
Chen YH, Huang JC, Wang L, et al. Effect of residual stresses on nanoindentation creep behavior of Zr-based bulk metallic glasses. Intermetallics 2013, 41: 58-62.
DOI Google Scholar
[12]
Guo S, Kagawa Y. Effect of loading rate and holding time on hardness and Young’s modulus of EB-PVD thermal barrier coating. Surf Coat Technol 2004, 182: 92-100.
DOI Google Scholar
[13]
Ma Z, Long S, Pan Y, et al. Loading rate sensitivity of nanoindentation creep in polycrystalline Ni films. J Mater Sci 2008, 43: 5952-5955.
DOI Google Scholar
[14]
Sneddon IN. The relation between load and penetration in the axisymmetric Boussinesq problem for a punch of arbitrary profile. Int J Eng Sci 1965, 3: 47-57.
DOI Google Scholar
[15]
Lawn BR, Howes VR. Elastic recovery at hardness indentations. J Mater Sci 1981, 16: 2745-2752.
DOI Google Scholar
[16]
Chakraborty R, Dey A, Mukhopadhyay AK. Loading rate effect on nanohardness of soda-lime-silica glass. Metall Mater Trans A 2010, 41: 1301-1312.
DOI Google Scholar
[17]
Gong J, Wu J, Guan Z. Examination of the indentation size effect in low-load Vickers hardness testing of ceramics. J Eur Ceram Soc 1999, 19: 2625-2631.
DOI Google Scholar
[18]
Jiang D. Recent progress in the phenomenological description for the indentation size effect in microhardness testing of brittle ceramics. J Adv Ceram 2012, 1: 38-49.
DOI Google Scholar
Publication history
Copyright
Acknowledgements
Rights and permissions

Publication history

Received: 28 February 2016
Accepted: 07 March 2016
Published: 14 June 2016
Issue date: June 2021

Copyright

© The author(s) 2016

Acknowledgements

This work was supported by the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure, China.

Rights and permissions

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/ by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Return