Activation energy for alkaline-earth ion transport in low alkali aluminoborosilicate glasses

Priyanka Dash; Eugene Furman; Carlo G. Pantano; Michael T. Lanagan

doi:10.1063/1.4794174

Activation energy for alkaline-earth ion transport in low alkali aluminoborosilicate glasses

Priyanka Dash, Eugene Furman, Carlo G. Pantano, Michael T. Lanagan

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

16 Scopus citations

Abstract

Activation energies (E_a) for ionic conduction in low-alkali boroaluminosilicate glasses due to alkaline-earth (Ba, Ca) and alkali (Na) ion transport have been estimated using thermally stimulated depolarization current (TSDC) and AC impedance spectroscopy techniques. The TSDC plot showed distinct relaxation peaks which shifted to higher temperatures with increasing ramp rates, and the dielectric dispersion plot showed individual low frequency relaxation peaks indicating space charge polarization due to transport of cations with different E_a (0.93, 1.83, and 3.5 eV for Na, Ba, and Ca, respectively). The higher value of E_a for Ca transport is attributed to mixed alkaline earth effect.

Original language	English (US)
Article number	082904
Journal	Applied Physics Letters
Volume	102
Issue number	8
DOIs	https://doi.org/10.1063/1.4794174
State	Published - Feb 25 2013

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4794174

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title = "Activation energy for alkaline-earth ion transport in low alkali aluminoborosilicate glasses",

abstract = "Activation energies (Ea) for ionic conduction in low-alkali boroaluminosilicate glasses due to alkaline-earth (Ba, Ca) and alkali (Na) ion transport have been estimated using thermally stimulated depolarization current (TSDC) and AC impedance spectroscopy techniques. The TSDC plot showed distinct relaxation peaks which shifted to higher temperatures with increasing ramp rates, and the dielectric dispersion plot showed individual low frequency relaxation peaks indicating space charge polarization due to transport of cations with different Ea (0.93, 1.83, and 3.5 eV for Na, Ba, and Ca, respectively). The higher value of Ea for Ca transport is attributed to mixed alkaline earth effect.",

author = "Priyanka Dash and Eugene Furman and Pantano, {Carlo G.} and Lanagan, {Michael T.}",

note = "Funding Information: The financial support of the Department of Energy Office of Vehicle Technologies is gratefully acknowledged. The authors would also like to thank Takashi Murata from Nippon Electric Glass, Japan for supplying the OA10 samples, and Jeff Long and Steve Perini for their technical assistance.",

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T1 - Activation energy for alkaline-earth ion transport in low alkali aluminoborosilicate glasses

AU - Dash, Priyanka

AU - Furman, Eugene

AU - Pantano, Carlo G.

AU - Lanagan, Michael T.

N1 - Funding Information: The financial support of the Department of Energy Office of Vehicle Technologies is gratefully acknowledged. The authors would also like to thank Takashi Murata from Nippon Electric Glass, Japan for supplying the OA10 samples, and Jeff Long and Steve Perini for their technical assistance.

PY - 2013/2/25

Y1 - 2013/2/25

N2 - Activation energies (Ea) for ionic conduction in low-alkali boroaluminosilicate glasses due to alkaline-earth (Ba, Ca) and alkali (Na) ion transport have been estimated using thermally stimulated depolarization current (TSDC) and AC impedance spectroscopy techniques. The TSDC plot showed distinct relaxation peaks which shifted to higher temperatures with increasing ramp rates, and the dielectric dispersion plot showed individual low frequency relaxation peaks indicating space charge polarization due to transport of cations with different Ea (0.93, 1.83, and 3.5 eV for Na, Ba, and Ca, respectively). The higher value of Ea for Ca transport is attributed to mixed alkaline earth effect.

AB - Activation energies (Ea) for ionic conduction in low-alkali boroaluminosilicate glasses due to alkaline-earth (Ba, Ca) and alkali (Na) ion transport have been estimated using thermally stimulated depolarization current (TSDC) and AC impedance spectroscopy techniques. The TSDC plot showed distinct relaxation peaks which shifted to higher temperatures with increasing ramp rates, and the dielectric dispersion plot showed individual low frequency relaxation peaks indicating space charge polarization due to transport of cations with different Ea (0.93, 1.83, and 3.5 eV for Na, Ba, and Ca, respectively). The higher value of Ea for Ca transport is attributed to mixed alkaline earth effect.

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Activation energy for alkaline-earth ion transport in low alkali aluminoborosilicate glasses

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