skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of fracture toughness by nanoindentation methods: Recent advances and future challenges

Journal Article · · Current Opinion in Solid State and Materials Science
 [1];  [2];  [3];  [4]
  1. Roma Tre Univ., (Italy)
  2. Technische Univ. Darmstadt, Darmstadt (Germany)
  3. Univ. of Tennessee, Knoxville, TN (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

In this study, we describe recent advances and developments for the measurement of fracture toughness at small scales by the use of nanoindentation-based methods including techniques based on micro-cantilever beam bending and micro-pillar splitting. A critical comparison of the techniques is made by testing a selected group of bulk and thin film materials. For pillar splitting, cohesive zone finite element simulations are used to validate a simple relationship between the critical load at failure, the pillar radius, and the fracture toughness for a range of material properties and coating/substrate combinations. The minimum pillar diameter required for nucleation and growth of a crack during indentation is also estimated. An analysis of pillar splitting for a film on a dissimilar substrate material shows that the critical load for splitting is relatively insensitive to the substrate compliance for a large range of material properties. Experimental results from a selected group of materials show good agreement between single cantilever and pillar splitting methods, while a discrepancy of ~25% is found between the pillar splitting technique and double-cantilever testing. It is concluded that both the micro-cantilever and pillar splitting techniques are valuable methods for micro-scale assessment of fracture toughness of brittle ceramics, provided the underlying assumptions can be validated. Although the pillar splitting method has some advantages because of the simplicity of sample preparation and testing, it is not applicable to most metals because their higher toughness prevents splitting, and in this case, micro-cantilever bend testing is preferred.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1242666
Alternate ID(s):
OSTI ID: 1251249
Journal Information:
Current Opinion in Solid State and Materials Science, Vol. 19, Issue 6; ISSN 1359-0286
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 146 works
Citation information provided by
Web of Science

References (46)

An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments journal June 1992
Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology journal January 2004
Measuring the constitutive behavior of viscoelastic solids in the time and frequency domain using flat punch nanoindentation journal March 2009
Nanoindentation strain-rate jump tests for determining the local strain-rate sensitivity in nanocrystalline Ni and ultrafine-grained Al journal June 2011
On the measurement of yield strength by spherical indentation journal November 2006
Residual stress measurement at the micrometer scale: focused ion beam (FIB) milling and nanoindentation testing journal March 2011
Fracture toughness, adhesion and mechanical properties of low-K dielectric thin films measured by nanoindentation journal April 2003
Indentation fracture: principles and applications journal June 1975
Fracture Toughness Determinations by Indentation journal July 1976
Residual stress effects in sharp contact cracking: Part 1 Indentation fracture mechanics journal August 1979
Elastic/Plastic Indentation Damage in Ceramics: The Median/Radial Crack System journal September 1980
A Critical Evaluation of Indentation Techniques for Measuring Fracture Toughness: I, Direct Crack Measurements journal September 1981
New formula for indentation toughness in ceramics journal March 1987
Direct Observation and Analysis of Indentation Cracking in Glasses and Ceramics journal April 1990
Determination of fracture toughness of bulk materials and thin films by nanoindentation: comparison of different models journal March 2011
Cohesive interface simulations of indentation cracking as a fracture toughness measurement method for brittle materials journal September 2012
An evaluation of the advantages and limitations in simulating indentation cracking with cohesive zone finite elements journal December 2013
Measuring fracture toughness of coatings using focused-ion-beam-machined microbeams journal February 2005
Crack stability in edge-notched clamped beam specimens: modeling and experiments journal July 2014
A novel approach for determining fracture toughness of hard coatings on the micrometer scale journal October 2012
A combined experimental-numerical approach for elasto-plastic fracture of individual grain boundaries journal March 2014
Determination of the interfacial strength and fracture toughness of a-C:H coatings by in-situ microcantilever bending journal November 2012
Measuring the fracture resistance of hard coatings journal April 2013
A new methodology to investigate fracture toughness of freestanding MEMS and advanced materials in thin film form journal February 2005
Fracture toughness of silicon nitride thin films of different thicknesses as measured by bulge tests journal February 2011
Can microscale fracture tests provide reliable fracture toughness values? A case study in silicon journal February 2015
Finite element analysis of vickers indentation cracking processes in brittle solids using elements exhibiting cohesive post-failure behaviour journal January 2003
An elastic–plastic-cracking model for finite element analysis of indentation cracking in brittle materials journal August 2001
On the practical application of the cohesive model journal September 2003
A plastic damage model for finite element analysis of cracking of silicon under indentation journal November 2010
A simple technique for avoiding convergence problems in finite element simulations of crack nucleation and growth on cohesive interfaces journal March 2004
Residual stress evaluation at the micrometer scale: Analysis of thin coatings by FIB milling and digital image correlation journal December 2010
Depth-resolved residual stress analysis of thin coatings by a new FIB–DIC method journal October 2011
A new method for estimating residual stresses by instrumented sharp indentation journal October 1998
Stress intensity factors for an elliptical crack approaching the surface of a semi-infinite solid journal June 1973
Analysis of Vickers indentation journal October 1994
Analysis of Berkovich indentation journal January 1996
Effects of the substrate on the determination of thin film mechanical properties by nanoindentation journal January 2002
A model for crack initiation in elastic/plastic indentation fields journal November 1977
Micromechanics of crack nucleation during indentations journal December 1979
Fracture toughness of PMMA as measured with indentation cracks journal December 1993
The Fracture Toughness of Polysilicon Microdevices: A First Report journal April 1997
Influences of residual stresses on the serrated flow in bulk metallic glass under elastostatic four-point bending – A nanoindentation and atomic force microscopy study journal May 2014
Interface fracture properties of thin films studied by using the micro-cantilever deflection technique journal December 2009
A comparative micro-cantilever study of the mechanical behavior of silicon based passivation films journal November 2009
Characterisation and wear properties of industrially produced nanoscaled CrN/NbN multilayer coating journal November 2004

Cited By (12)

The Performance of TiAlSiN Coated Cemented Carbide Tools Enhanced by Inserting Ti Interlayers journal August 2019
Indentation Behavior and Mechanical Properties of Tungsten/Chromium co-Doped Bismuth Titanate Ceramics Sintered at Different Temperatures journal March 2018
Strengthening versus Softening of Nanotwinned Copper Depending on Prestress and Twin Spacing journal May 2018
Determination of Vickers indentation fracture toughness of boronised alloyed ductile iron journal August 2019
From quantum to continuum mechanics: studying the fracture toughness of transition metal nitrides and oxynitrides journal December 2017
Micro-mechanical properties of a novel silicon nitride fiber reinforced silicon carbide matrix composite via in situ nano-indentation method journal January 2019
Electronic hybridisation implications for the damage-tolerance of thin film metallic glasses journal November 2016
Measurement of the mechanical properties of silver and enamel thick films using nanoindentation journal September 2019
A Materials Perspective on the Design of Damage-Resilient Bone Implants Through Additive/Advanced Manufacturing journal January 2020
Electronic hybridisation implications for the damage-tolerance of thin film metallic glasses text January 2016
From quantum to continuum mechanics: studying the fracture toughness of transition metal nitrides and oxynitrides text January 2018
Measurement of the mechanical properties of silver and enamel thick films using nanoindentation text January 2019