แจ้งเอกสารไม่ครบถ้วน, ไม่ตรงกับชื่อเรื่อง หรือมีข้อผิดพลาดเกี่ยวกับเอกสาร ติดต่อที่นี่ ==>
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
The study of dysprosium-dopant on microstructure and electrical properties of zinc oxide based varistors
Name: Tasanaporn Ratnua
Organization :
Khon Kaen University. Faculty of Science
Name: Poonsuk Poosimma
Organization :
Khon Kaen University. Faculty of Science
Email :
ppoons@kku.ac.th
keyword:
Zinc oxide
LCSH:
Zinc
-- Electric properties
Abstract:
Zinc oxide (ZnO) has been used for several application involving catalyst, semiconductor, etc. Varistor is semiconductor made from ZnO with other metal oxides for improving the electrical characteristics. In this work, the
influence of dysprosium on the microstructure and electrical properties in ZnO-Bi2O3-MnO-Sb2O3 varistor system was studied. ZnO-based varistors were synthesized via hydrothermal treatment and doped with different percentage of Dy3+
(0.1, 0.3, 0.5, 0.7 and 0.9 mol%). All synthesized samples were sintered at 1,150 °C for 2 h. The physical properties of
ceramic sample including bulk density, phase formation and microstructure were characterized. XRD patterns indicate the predominant hexagonal ZnO phase and also secondary phases. SEM images confirm the existence of secondary phases located along grain boundary. Furthermore, the average grain sizes decrease with the increasing of doping
content. For the electrical properties, the Dy3+-doping leads to the enhancement of varistor performance. The sample
giving the best electrical performance was a 0.3 mol% Dy doped sample with a nonlinear coefficient of 12.2, a leakage
current density of 74.94 μA/cm2 and a breakdown field of 5,789.3 V/cm
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2022
Modified:
2022-11-15
Issued:
2022-11-15
BibliograpyCitation :
In King Mongkut's Institute of Technology Ladkrabang. Pure and Applied Chemistry International Conference (PACCON 2022) (pp.436-441). Bangkok : King Mongkut's Institute of Technology Ladkrabang
eng
©copyrights
RightsAccess:
ใช้เวลา
-0.9806 วินาที
Tasanaporn Ratnua
| Title | Contributor | Type |
|---|---|---|
| The study of dysprosium-dopant on microstructure and electrical properties of zinc oxide based varistors
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Tasanaporn Ratnua;Poonsuk Poosimma | บทความ/Article |
Poonsuk Poosimma
| Title | Contributor | Type |
|---|