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:
Without addition of any thermodynamically stable perovskite compound such as PbTiO3,Pb(Mg1/3Nb2/3)O3 was fabricated by a new sol-gel route, and the processing parameter was studied. Theresult showed that the chelating effect of ammonium citrate was relatively better than that of citric acid inthis system. When the ratio of ammonium citrate to Nb2O5 was 8.33, the colloid of Nb2O5·nH2O was instate of transparency. The effects of heat treatment on the formation of perovskite phase ofPb(Mg1/3Nb2/3)O3 powders were characterized by X-Ray Diffraction (XRD) method. With increasing heattreatment temperature or holding time, pyrochlore phase turned into perovskite phase gradually, and aftersecond calcination, the content of perovskite phase increased significantly from 54% to 72%
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.46.pdf
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