کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1624321 | 1516421 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterization of (Zn, Mn)TiO3 by modified sol–gel route Synthesis and characterization of (Zn, Mn)TiO3 by modified sol–gel route](/preview/png/1624321.png)
Hexagonal ilmenite-type (Zn1−xMnx)TiO3 (0 ≤ x ≤ 0.9) ceramic powders were synthesized by a sol–gel route including the Pechini process with heat treatments at 600 °C for 3 h and 800 °C for 6 h. The thermal stability of ZnTiO3 dielectric ceramics was improved (>1200 °C) by doping manganese. The dielectric constant of (Zn1−xMnx)TiO3 ceramic was higher than those of (Zn, M)TiO3 (M = Co, Ni, etc.), increased with the amount of manganese in the range of 0 ≤ x < 0.7 then decreased after the maximum point at x = 0.7 in the same frequency. Both the dielectric loss tangent and the dielectric constant decreased with increasing the measured frequencies. The value of dielectric loss tangent was relatively high because of magnetoresistive effect of manganese.
Journal: Journal of Alloys and Compounds - Volume 456, Issues 1–2, 29 May 2008, Pages 353–357