ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Two types of multilayer ZnO varistors are prepared by the chemically synthesized (CS) powderand the mixed oxide (MO) powder. The ceramic microstructure analysis shows that the multilayer variestor(MLV) ceramic prepared by the CS powder has the fine grain, the homogeneous distribution of grainsize and the uniform dopant distribution. The CS powder prepared multilayer ZnO varistors display betterelectrical properties, including higher nonlinear coefficient, higher breakdown voltage, higher peakcurrent, lower leakage current and lower clamping voltage, than those made by the mixed oxide powder.All these superior electrical properties are attributed to the CS powder, which makes more uniform dopantdistribution throughout the multilayer ZnO varistors. The homogeneous distribution for the variousdopants in the varistor ceramic has been achieved by the chemically synthesized doped ZnO powder.Therefore, the chemically synthesized powder can be used in the manufacture of high performancemultilayer ZnO varistors
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.739.pdf
