EFFECT OF SINTERING TEMPERATURE ON THERMOELECTRIC-POWER OF MIXED LITHIUM-ZINC FERRITES

被引：7

作者：

RAVINDER, D

机构：

[1] Department of Physics, College of Engineering, Osmania University, Hyderabad

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 1992年 / 27卷 / 04期

关键词：

D O I：

10.1002/crat.2170270423

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Thermoelectric power of polycrystalline lithium-zinc ferrites having the compositional formula Li0.5-x/2ZnxFe2.5-x/2O4 (where x = 0.2, 0.4, 0.6, 0.8, and 1.0), sintered at 1200, 1250 and, 1300-degrees-C has been investigated over the temperature range 300 to 450K by the hot probe method. The Seebeck coefficient (Q) is found to decrease with increasing sintering temperature, whereas the carrier concentration (n) and the charge carrier mobility (mu) are found to increase with increasing sintering temperature. Among all the mixed lithium-zinc ferrites, the one having a zinc content of 0.6 mole has a minimum value of Seebeck coefficient and maximum value of charge carrier concentration.

引用

页码：545 / 554

页数：10