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<p>Using a high temperature solid state reaction approach with the oxide of the Lithium metal and B<sub>2</sub>O<sub>3</sub> as starting materials, the Lithium metaborate LiBO<sub>2</sub> have been produced. Pressed pellet of this compound, thermoelectric powers (S) and electrical conductivity (σ) is tested in the temperature ranging from the 440&#xa0;K to the melting point.Finding have been presented as plot of log σT Vs T<sup>− 1</sup> and log S Vs T<sup>− 1</sup>. It is noted that at a certain temperature for the solid, σ jumps by a factor of 10 and reaches a value of the order of 5 around 1000&#xa0;K.For this solid S value exhibits an anomaly at the similar temp; this temp. is known as the phase transition temperature (T<sub>P</sub>) of the solid. Utilizing a time dependency analysis of dc electrical conductivity, the ionic (σ<sub>i</sub>) and electronic (σ<sub>e</sub>) components of total conductivity have been assessed. It can be seen that the contribution of σ<sub>i</sub> to σ is greater as compared to the 99% for the solid over T<sub>P</sub>, and that below T<sub>P</sub> although it declines, it will more than 96% up to 500&#xa0;K.</p>

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Charge And Mass Movement In Lithium Metaborate (LiBO2)

  • 期刊论文

  • 发表日期：

    2025年1月18日

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  • K. M. Mishra,
  • P. K. Pandey,
  • F. Z. Haque

摘要

Using a high temperature solid state reaction approach with the oxide of the Lithium metal and B2O3 as starting materials, the Lithium metaborate LiBO2 have been produced. Pressed pellet of this compound, thermoelectric powers (S) and electrical conductivity (σ) is tested in the temperature ranging from the 440 K to the melting point.Finding have been presented as plot of log σT Vs T− 1 and log S Vs T− 1. It is noted that at a certain temperature for the solid, σ jumps by a factor of 10 and reaches a value of the order of 5 around 1000 K.For this solid S value exhibits an anomaly at the similar temp; this temp. is known as the phase transition temperature (TP) of the solid. Utilizing a time dependency analysis of dc electrical conductivity, the ionic (σi) and electronic (σe) components of total conductivity have been assessed. It can be seen that the contribution of σi to σ is greater as compared to the 99% for the solid over TP, and that below TP although it declines, it will more than 96% up to 500 K.