Response of solids to elastic/plastic indentation and the application of indentation to adhesion measurements

Technical Report · Sun Mar 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6592795· OSTI ID:6592795

Chiang, S S

A new approach for analyzing indentation plasticity and indentation fracture is presented. The analysis permits relations to be established between material properties (notably hardness, yield strength and elastic modulus) and the magnitudes of the indentation and plastic zone. The predictions are demonstrated to be fully consistent with observations performed on a wide range of materials. The indentation stress fields can also be adapted to generate predictions of indentation fracture thresholds for the three dominant crack types: radial, median and lateral cracks. The predictions are generally consistent with experimental observations. The indentation method was applied to determine the adhesion of interfaces between thin films and substrates. This method provides a quantitative measure of the interface fracture resistance and has the advantage of simplicity and reproducibility. The method has been demonstrated for a range of ZnO/Si systems and the adhesion has been correlated with acoustic properties.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6592795
• Report Number(s): LBL-11841
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ADHESION
CHALCOGENIDES
CRACKS
ELASTICITY
FAILURES
FRACTURES
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PLASTICITY
SILICON COMPOUNDS
SOLIDS
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES