ISSN
2231–4202  (Print)                
2249–9970  (Online)             
Peer Reviewed and Refereed Journal


JPAST is a Peer Reviewed & Refereed biannual multidisciplinary journal starting from July 2011. Articles are invited for July 22 issue.
Volume 11, Issue 1, Pages 6-15, January 2021

Electrical and Thermoelectric Properties of NaAlO2

1Shivendu Tripathi and 2Subodh Kumar Sharma

1Satish Chandra College, Ballia, U.P., India.

2S. S. V. College, Hapur, U.P., India.

The electrical conductivity (σ) with ionic (σi) and electronic (σe) conductivity and thermoelectric power (S) of NaAlO2 have been separated over the entire temperature range from 450K to just below its melting point with the help of time dependent study of dc electrical conductivity. Superionic phase has been observed well below the melting point in which the conductivity is almost purely ionic. The phase transition temperature below which the solid transform from superionic to normal phase has been obtained from electrical conductivity (σ) and thermoelectric power (S) measurement. In normal ionic phase, the solid NaAlO2 shows mixed conduction (ionic and electronic) behavior. The variation of σi and σe with temperatures has been shown in various plots and the conduction mechanism is explained by extended lattice gas model.

Keywords: Ionic conductivity; Electronic conductivity; Thermoelectric power, Phase Transition temperature.

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