Effect of two-step sintering on rare earth (RE = Y2 O3,Pr6 O11) doped ZnO–Bi2O3 varistors processed from ‘nano-precursor’ powders

dc.contributor.author	Mahesh, K V
dc.contributor.author	Anas, S
dc.contributor.author	Rahul, S
dc.contributor.author	Ananthakumar, S
dc.date.accessioned	2013-08-22T09:48:25Z
dc.date.available	2013-08-22T09:48:25Z
dc.date.issued	2013
dc.identifier.citation	Journal of Materials Science:Materials in Electronics 24(5):1495-1504;May 2013	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/594
dc.description.abstract	Nano size ZnO–Bi2O3 varistor precursor powders containing Y2O3 and Pr6O11 rare earth dopants were prepared by low temperature refluxing at 80 °C. Effect of rare earth dopants, densification by two-step sintering, evolution of microstructures and their influence on varistor properties were investigated. Chemically synthesized nano- precursor varistor powders produced controlled grain size in two-step sintering in which the average sintered ZnO grain size was reduced to at least half compared to the conventionally processed ZnO–Bi2O3 varistors. The study revealed that such grain size reduction is highly beneficial to attain enhanced varistor properties.	en_US
dc.language.iso	en	en_US
dc.publisher	Springer	en_US
dc.subject	Zinc-oxide varistors	en_US
dc.subject	Nanocrystalline ZNO	en_US
dc.subject	Praseodymium oxides	en_US
dc.subject	Densification	en_US
dc.subject	Microstructure	en_US
dc.subject	Electrical-properties	en_US
dc.title	Effect of two-step sintering on rare earth (RE = Y2 O3,Pr6 O11) doped ZnO–Bi2O3 varistors processed from ‘nano-precursor’ powders	en_US
dc.type	Article	en_US