Local thermomechanical characterization of phase transitions using band excitation atomic force acoustic microscopy with heated probe

S. Jesse; M. P. Nikiforov; L. T. Germinario; S. V. Kalinin

doi:10.1063/1.2965470

Local thermomechanical characterization of phase transitions using band excitation atomic force acoustic microscopy with heated probe

S. Jesse, M. P. Nikiforov, L. T. Germinario, S. V. Kalinin

Center for Nanophase Matls Sciences

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

An approach for thermomechanical characterization of phase transitions in polymeric materials (polyethyleneterephthalate) by band excitation acoustic force microscopy is developed. This methodology allows the independent measurement of resonance frequency, Q factor, and oscillation amplitude of a tip-surface contact as a function of tip temperature, from which the thermal evolution of tip-surface spring constant and mechanical dissipation can be extracted. We demonstrate a heating protocol which keeps the contact area and contact force constant, thus allowing for reproducible measurements and quantitative extraction of material properties including temperature dependence of indentation-based elastic and loss moduli.

Original language	English
Article number	073104
Journal	Applied Physics Letters
Volume	93
Issue number	7
DOIs	https://doi.org/10.1063/1.2965470
State	Published - 2008

Funding

The development of BE-AFAM was sponsored by the Center for Nanoscale Materials Sciences (SJ, SVK) at the Oak Ridge National Laboratory, Office of Basic Energy Sciences, the U.S. Department of Energy (DE-AC05-00OR22725), the ORNL LDRD fund (M.N.), and the CNMS User proposal (No. CNMS2008-120). The VT BE-AFAM is available as a part of user program at the CNMS.

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abstract = "An approach for thermomechanical characterization of phase transitions in polymeric materials (polyethyleneterephthalate) by band excitation acoustic force microscopy is developed. This methodology allows the independent measurement of resonance frequency, Q factor, and oscillation amplitude of a tip-surface contact as a function of tip temperature, from which the thermal evolution of tip-surface spring constant and mechanical dissipation can be extracted. We demonstrate a heating protocol which keeps the contact area and contact force constant, thus allowing for reproducible measurements and quantitative extraction of material properties including temperature dependence of indentation-based elastic and loss moduli.",

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Local thermomechanical characterization of phase transitions using band excitation atomic force acoustic microscopy with heated probe

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