The effect of sintering temperature on varistor properties of (Pr, Co, Cr, Y, Al)-doped ZnO ceramics

2008 ◽  
Vol 62 (29) ◽  
pp. 4440-4442 ◽  
Author(s):  
C.-W. Nahm
2007 ◽  
Vol 336-338 ◽  
pp. 2361-2362
Author(s):  
Shu Ai Li ◽  
Da Nian Liu ◽  
Jiang Hong Gong

A series of MnO-doped ZnO with different grain sizes and grain morphologies were prepared by sintering the samples at different temperatures for different holding times. The grain size distribution for each sample was determined. It was found that, although the grain size increases and the grain morphology varies with the sintering temperature and/or the holding time, the normalized grain size distribution keeps invariable.


2021 ◽  
Vol 606 ◽  
pp. 412726
Author(s):  
Gabriela Gomes Miranda ◽  
Raphael Lucas de Sousa e Silva ◽  
Hermínia Veridiana dos Santos Pessoni ◽  
A. Franco

2015 ◽  
Vol 2 (4) ◽  
pp. 045901 ◽  
Author(s):  
Parmod Kumar ◽  
Rahul Joshi ◽  
Anurag Gaur ◽  
Lalit Kumar ◽  
K Asokan

1999 ◽  
Vol 169-170 ◽  
pp. 93-96
Author(s):  
S. Tanaka ◽  
Naoki Ohashi ◽  
Kazuhiko Takahashi

2012 ◽  
Vol 29 (2) ◽  
pp. 125-132 ◽  
Author(s):  
M. Ebrahimizadeh Abrishami ◽  
A. Kompany ◽  
S. M. Hosseini
Keyword(s):  
Mn Doped ◽  

2001 ◽  
Vol 252 (1) ◽  
pp. 265-271 ◽  
Author(s):  
Z. C. Wu ◽  
X. M. Zhang ◽  
J.-M. Liu ◽  
Q. C. Li ◽  
X. Y. Chen ◽  
...  

2018 ◽  
Vol 772 ◽  
pp. 105-109
Author(s):  
Syamsul Hadi ◽  
Husein Jaya Andika ◽  
Agus Kurniawan ◽  
Suyitno

Electrical conductivity plays an important role in the performance of thermoelectric semiconductor material. This study discusses the electrical conductivity measurements of Zinc Oxide (ZnO) doping Aluminium (Al) pellet as a material of thermoelectric using four-point probe method at high temperatures. Al-doped ZnO (2 wt%) pellet was sintered at the temperature of 1100°C, 1200°C, 1300°C, 1400°C, and 1500°C with the heating rate of 8°C/minute. SEM and XRD tests show that the higher sintering temperature effects to larger grain sizes, better crystallinity, and lower porosity. There is no electrical conductivity in the sintering sample at 1100°C due to the small grain sizes and high porosity. In the sintering sample at 1500°C, the phase of ZnAl2O4erupted. The highest electrical conductivity of 5923.48S/m of Al-doped ZnO pellet was obtained at the sintering temperature of 1400°C with measurement temperature of 500°C.


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