Influence of Ta2O5 doping and microwave sintering on TiO2-based varistor properties
Source abstract
Abstract
Abstract TiO 2 based varistor materials with Ta 2 O 5 dopants are prepared by microwave sintering (MS) and conventional sintering (CS). The sintering characteristics, sintered microstructures, varistor voltage ( V 1 mA ), nonlinear coefficient ( α ) and leak current ( I L ) are studied. The influences of the doping amount of Ta 2 O 5 on the above properties are discussed. For similar sintered densities, the microwave sintering can decrease the sintering temperature by about 250 °Cwhile improving the microstructure of the samples. Microwave sintering leads to better properties than conventional sintering. The samples have the best overall properties when the doping amount of Ta 2 O 5 is in the range from 0.075 mol% to 0.125 mol%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Microwave Dielectric Ceramics Synthesis · Advanced ceramic materials synthesis · Microwave-Assisted Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Application of zinc oxide varistor10.1111/j.1151-2916.1990.tb05232.x ↗
2. Ceramic varistors based on ZnO–SnO210.1016/S0955-2219(03)00472-2 ↗
3. Novel varistor materials based on tungsten oxide10.1007/BF00701430 ↗
4. The role of TiO2 powder on the SrTiO3-based synthesized varistor materials10.1016/j.matlet.2005.09.070 ↗
5. Effects of Nb2O5 in (Ba, Bi, Nb)-added TiO2 ceramics varistors10.1557/JMR.1995.0345 ↗
6. Varistors based on Ta-doped TiO210.1016/j.ceramint.2005.07.026 ↗
7. Effect of strontium substitution in (Nb, Bi) doped TiO2 varistors10.1016/0167-577X(96)00023-7 ↗
8. The effect of Ta2O5 and Cr2O3 on the electrical properties of TiO2 varistors10.1016/S0955-2219(01)00441-1 ↗
9. Effect of lead oxide on niobium-doped titania varistors10.1111/j.1151-2916.1991.tb04308.x ↗
10. Novel niobium-doped titania varistors with added barium and bismuth10.1111/j.1151-2916.1993.tb03700.x ↗
11. Effect of Cr2O3 in the varistor behavior of TiO210.1007/BF00278618 ↗
12. Nonlinear electrical properties of TiO2–Y2O3–Nb2O5 capacitor–varistor cermics10.1016/S0921-5107(01)00563-3 ↗
13. The role of niobium in (Ca, Si, Ce, Nb)-doped TiO2 varistors10.4028/www.scientific.net/KEM.280-283.297 ↗
14. Effect of CeO2 on electric properties of TiO2 based capacitor–varistor muti-function ceramics
15. Effect of Ta2O5 in (Ca, Si, Ta)-doped TiO2 ceramic varistors10.1016/j.ceramint.2007.03.005 ↗
16. Influence of SiO2 on electrical properties of (Sr, Bi, Si, Ta) -added TiO2-based varistor
17. Fabricating transparent ceramics by microwave sintering: focus on electronics
18. Microwave sintering behaviors of zinc oxide varistors
19. Microwave solutions for ceramic engineers
20. Microwave-assisted sintering of ZnO varistors: local microstructure and functional property variations10.1016/j.mseb.2010.02.018 ↗
21. Microwave sintering of doped nanocrystalline ZnO and characterization for varistor applications10.1016/j.matchemphys.2009.02.015 ↗
22. Charge and mass transport in ceramic TiO210.1016/S0955-2219(01)00519-2 ↗
23. Influence of Ta2O5 on semi-conductivity properties TiO2-based varistor
24. Influence of sintering condition on TiO2 varistor ceramics
25. Effect of Ta2O5 on titania varistor ceramics
26. Current studies and application of TiO2 varistors