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:
With citric acid as chelating agent, ethylene alcohol as etherification agent and water assolvent, NaNbO3 nanopowder was synthesized by citrate sol-gel method. The effects of amount of CAand EG, pH value on the stability of the precursor sol were investigated. The evolution of NaNbO3 crystalphase was also investigated by XRD and TG-DTA. The results showed that a homogeneous precursor solwas formed at in the case of n(CA) : n(metal ion)=3:1, n(CA) : n(EG)=1: 2 and 1:3 and pH=7.5. Sinteringprocess largely influences the morphology of the prepared products. Grain-like nanoparticles could beobtained with a rapid temperature rising rate, while nanorods were obtained with a slow rate. The formingmechanism of different morphologies of the prepared nanoparticles was also discussed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.140.pdf
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