Determination of the activation volume for O2− ion conduction of YSZ via single-sweeping of load by utilizing an electrochemical indenter

A few GPa-order high-pressure impedance measurement was performed by utilizing an indentation method, which is often used to evaluate mechanical characteristics, and the alternating current (AC) impedance method simultaneously. We succeeded in estimating the activation volume (ΔV = 3.2 cm3/mol) for...

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Bibliographic Details
Published in:Journal of the Ceramic Society of Japan 2021/10/01, Vol.129(10), pp.616-618
Main Authors: DAIKO, Yusuke, KATO, Junki, HONDA, Sawao, IWAMOTO, Yuji
Format: Article
Language:English
Subjects:
Activation volume
Alternating current
Free volume
Impedance
Impedance measurement
Impedance method
Indentation
Ion conduction
Lattice relaxation
Mechanical properties
Yttria-stabilized zirconia
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Summary:A few GPa-order high-pressure impedance measurement was performed by utilizing an indentation method, which is often used to evaluate mechanical characteristics, and the alternating current (AC) impedance method simultaneously. We succeeded in estimating the activation volume (ΔV = 3.2 cm3/mol) for O2− ion conduction of YSZ with a single sweep of load at 0.25 N/s up to 25 N. Such a quick and easy method for determining ΔV is completely new that has not been proposed so far.
ISSN:1882-0743
1348-6535
DOI:10.2109/jcersj2.21128