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:
In this study, it would be interesting to investigate ceramic material based onSr0.4Ba0.6Nb2O6 composition, V2O5 was used to substitute Nb2O5 to form the compositions ofSr0.4Ba0.6Nb2-xVxO6, where 0 ≤ x ≤ 0.3. The prepared Sr0.4Ba0.6Nb2-xVxO6 ceramics were sinteredfrom 1060oC to 1300oC, and the needed sintering temperatures were dependent on V2O5 content. TheSEM micrographs showed that even 1220oC was used as the sintering temperature of Sr0.4Ba0.6Nb2O6ceramics, the pores were still observed. The crystal intensities of some (h,k,l) planes, for example(3,2,0) and (5,5,0) planes, apparently increased with the increase of V2O5 content and slightlydecreased with the increase of sintering temperatures. The temperature-dependent dielectriccharacteristics were measured from 25oC to 300oC at 1MHz as a function of sintering temperaturesand V2O5 content. The studied results would show that the sintering temperatures and V2O5 contentalso had large influence on the maximum dielectric constants (revealed at Curie temperatures) and thetemperature-dielectric curves of Sr0.4Ba0.6Nb2-xVxO6 ceramics
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.136.pdf