Piezoelectric shear rheometry: Further developments in experimental implementation and data extraction

Mathias Mikkelsen; Kira Lieberkind Eliasen; Niclas Lindemann; Kevin Moch; Roland Böhmer; Ali Karimi; Jorge Lacayo-Pineda; Bo Jakobsen; Kristine Niss; Tage Emil Christensen; Tina Hecksher

doi:10.1122/8.0000379

Piezoelectric shear rheometry: Further developments in experimental implementation and data extraction

Mathias Mikkelsen, Kira Lieberkind Eliasen, Niclas Lindemann, Kevin Moch, Roland Böhmer, Ali Karimi, Jorge Lacayo-Pineda, Bo Jakobsen, Kristine Niss, Tage Emil Christensen, Tina Hecksher^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The piezoelectric shear gauge (PSG) [Christensen and Olsen, Rev. Sci. Instrum. 66, 5019 (1995)] is a rheometric technique developed to measure the complex shear modulus of viscous liquids near their glass transition temperature. We report recent advances to the PSG technique: (1) The data extraction procedure is optimized, which extends the upper limit of the frequency range of the method to between 50 and 70 kHz. (2) The measuring cell is simplified to use only one piezoelectric ceramic disk instead of three. We present an implementation of this design intended for liquid samples. Data obtained with this design revealed that a soft extra spacer is necessary to allow for thermal contraction of the sample in the axial direction. Model calculations show that flow in the radial direction is hindered by the confined geometry of the cell when the liquid becomes viscous upon cooling. The method is especially well-suited for—but not limited to—glassy materials.

Original language	English
Journal	Journal of Rheology
Volume	66
Issue number	983
Pages (from-to)	983-1003
Number of pages	21
ISSN	0148-6055
DOIs	https://doi.org/10.1122/8.0000379
Publication status	Published - 26 Aug 2022

Keywords

Rheometry
Shear modulus
Thermal effects
Rheometer
Ceramics
Glass transitions
Polymers
Viscous liquid
Mathematical modeling
Newton Raphson method

Link to document

10.1122/8.0000379

https://arxiv.org/pdf/2201.12529.pdf

2 Finished

Closing the Gap in Broadband Mechanical Spectroscopy — Expanding the Range of Dynamic Mechanical Analysis
Mikkelsen, M., Lindemann, N., Karimi, A., Christensen, T. E., Lacayo-Pineda, J. & Hecksher, T.
01/09/2019 → 30/11/2022
Project: Research
Matter
Dyre, J., Hecksher, T., Pedersen, U. R., Ingebrigtsen, T., Niss, K., Hansen, J. S., Schrøder, T. & Bailey, N.
01/07/2017 → 31/12/2023
Project: Research

Cite this

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title = "Piezoelectric shear rheometry: Further developments in experimental implementation and data extraction",

abstract = "The piezoelectric shear gauge (PSG) [Christensen and Olsen, Rev. Sci. Instrum. 66, 5019 (1995)] is a rheometric technique developed to measure the complex shear modulus of viscous liquids near their glass transition temperature. We report recent advances to the PSG technique: (1) The data extraction procedure is optimized, which extends the upper limit of the frequency range of the method to between 50 and 70 kHz. (2) The measuring cell is simplified to use only one piezoelectric ceramic disk instead of three. We present an implementation of this design intended for liquid samples. Data obtained with this design revealed that a soft extra spacer is necessary to allow for thermal contraction of the sample in the axial direction. Model calculations show that flow in the radial direction is hindered by the confined geometry of the cell when the liquid becomes viscous upon cooling. The method is especially well-suited for—but not limited to—glassy materials.",

keywords = "Rheometry, Shear modulus, Thermal effects, Rheometer, Ceramics, Glass transitions, Polymers, Viscous liquid, Mathematical modeling, Newton Raphson method",

author = "Mathias Mikkelsen and Eliasen, {Kira Lieberkind} and Niclas Lindemann and Kevin Moch and Roland B{\"o}hmer and Ali Karimi and Jorge Lacayo-Pineda and Bo Jakobsen and Kristine Niss and Christensen, {Tage Emil} and Tina Hecksher",

year = "2022",

month = aug,

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doi = "10.1122/8.0000379",

language = "English",

volume = "66",

pages = "983--1003",

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T2 - Further developments in experimental implementation and data extraction

AU - Mikkelsen, Mathias

AU - Eliasen, Kira Lieberkind

AU - Lindemann, Niclas

AU - Moch, Kevin

AU - Böhmer, Roland

AU - Karimi, Ali

AU - Lacayo-Pineda, Jorge

AU - Jakobsen, Bo

AU - Niss, Kristine

AU - Christensen, Tage Emil

AU - Hecksher, Tina

PY - 2022/8/26

Y1 - 2022/8/26

N2 - The piezoelectric shear gauge (PSG) [Christensen and Olsen, Rev. Sci. Instrum. 66, 5019 (1995)] is a rheometric technique developed to measure the complex shear modulus of viscous liquids near their glass transition temperature. We report recent advances to the PSG technique: (1) The data extraction procedure is optimized, which extends the upper limit of the frequency range of the method to between 50 and 70 kHz. (2) The measuring cell is simplified to use only one piezoelectric ceramic disk instead of three. We present an implementation of this design intended for liquid samples. Data obtained with this design revealed that a soft extra spacer is necessary to allow for thermal contraction of the sample in the axial direction. Model calculations show that flow in the radial direction is hindered by the confined geometry of the cell when the liquid becomes viscous upon cooling. The method is especially well-suited for—but not limited to—glassy materials.

AB - The piezoelectric shear gauge (PSG) [Christensen and Olsen, Rev. Sci. Instrum. 66, 5019 (1995)] is a rheometric technique developed to measure the complex shear modulus of viscous liquids near their glass transition temperature. We report recent advances to the PSG technique: (1) The data extraction procedure is optimized, which extends the upper limit of the frequency range of the method to between 50 and 70 kHz. (2) The measuring cell is simplified to use only one piezoelectric ceramic disk instead of three. We present an implementation of this design intended for liquid samples. Data obtained with this design revealed that a soft extra spacer is necessary to allow for thermal contraction of the sample in the axial direction. Model calculations show that flow in the radial direction is hindered by the confined geometry of the cell when the liquid becomes viscous upon cooling. The method is especially well-suited for—but not limited to—glassy materials.

KW - Rheometry

KW - Shear modulus

KW - Thermal effects

KW - Rheometer

KW - Ceramics

KW - Glass transitions

KW - Polymers

KW - Viscous liquid

KW - Mathematical modeling

KW - Newton Raphson method

U2 - 10.1122/8.0000379

DO - 10.1122/8.0000379

M3 - Journal article

SN - 0148-6055

VL - 66

SP - 983

EP - 1003

JO - Journal of Rheology

JF - Journal of Rheology

IS - 983

ER -

Piezoelectric shear rheometry: Further developments in experimental implementation and data extraction

Abstract

Keywords

Link to document

Projects

Closing the Gap in Broadband Mechanical Spectroscopy — Expanding the Range of Dynamic Mechanical Analysis

Matter

Cite this