Piezoelectric Nanoindentation

Journal Article · Sun Jan 01 04:00:00 EST 2006 · Journal of Materials Research

DOI:https://doi.org/10.1557/jmr.2006.0081· OSTI ID:978026

Rar, Andrei ^[1]; Pharr, George Mathews ^[1]; Oliver, Warren C. ^[2]; Karapetian, Edgar ^[1]; Kalinin, Sergei V ^[1]

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1. ORNL
2. MTS Nanoinstruments Innovation Center, Oak Ridge

Piezoelectric nanoindentation (PNI) has been developed to quantitatively address electromechanical coupling and pressure-induced dynamic phenomena in ferroelectric materials on the nanoscale. In PNI, an oscillating voltage is applied between the back side of the sample and the indenter tip, and the first harmonic of bias-induced surface displacement at the area of indenter contact is detected. PNI is implemented using a standard nanoindentation system equipped with a continuous stiffness measurement system. The piezoresponse of polycrystalline lead zirconate titanate (PZT) and BaTiO{sub 3} piezoceramics was studied during a standard nanoindentation experiment. For PZT, the response was found to be load independent, in agreement with theoretical predictions. In polycrystalline barium titanate, a load dependence of the piezoresponse was observed. The potential of piezoelectric nanoindentation for studies of phase transitions and local structure-property relations in piezoelectric materials is discussed.

• Research Organization: Oak Ridge National Laboratory (ORNL); Shared Research Equipment Collaborative Research Center
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 978026
• Journal Information: Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 3 Vol. 21; ISSN JMREEE; ISSN 0884-2914
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM
FERROELECTRIC MATERIALS
FLEXIBILITY
HARMONICS
PZT