Electrical conductivity of magnesium ferrite prepared by sol-gel auto combustion technique

被引：2
|
作者：
Kumar, Sudhanshu [1 ]
Sreenivas, K. [1 ]
机构：
[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
来源：
ADVANCES IN BASIC SCIENCES (ICABS 2019) | 2019年 / 2142卷
关键词：
sol-gel auto combustion; magnesium ferrite ceramics; X-ray diffraction; AC conductivity; MGFE2O4;
D O I：
10.1063/1.5122341
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Magnesium ferrite (MgFe2O4) powder has been synthesized by sol-gel auto combustion method using DL-alanine fuel. The obtained as-burnt powder was annealed at different temperatures in the range 600 to 1300 degrees C for 4 hrs. Phase pure powders are obtained at an optimum temperature of 900 degrees C, and the residual carbon, nitrogen and hydrogen content in the inorganic MgFe2O4 are found to be low. Highly resistive MgFe2O4 ceramics are obtained by sintering at 1200 degrees C, and are found to exhibit semiconducting behavior as analyzed from the frequency and temperature dependent ac conductivity.
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页数：5
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