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Ferroelectrics Volume 302, 2004 - Issue 1
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Original Articles

Ti and V Substitutions on the KNbO3 Ceramics: Dielectric Study

B. SUNDARAKANNAN Materials Science and Engineering Shikumi-College Nagoya Institute of Technology, Showa-ku, Nagoya, Japan, 466-8555
,
K. KAKIMOTO Materials Science and Engineering Shikumi-College Nagoya Institute of Technology, Showa-ku, Nagoya, Japan, 466-8555
&
H. OHSATO Materials Science and Engineering Shikumi-College Nagoya Institute of Technology, Showa-ku, Nagoya, Japan, 466-8555
Pages 175-179 | Received 01 Aug 2003, Accepted 01 Jan 2004, Published online: 08 Sep 2010
 
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Abstract

Potassium niobate ceramics substituted by the Ti and V ions are prepared and the dielectric, structural and vibrational properties are investigated. These substitutions didn't change the orthorhombic structure of pure potassium niobate. The Curie temperature has shifted to low temperature in the titanium substituted samples. The substitution of Ti ions on the Nb-site is evidenced in the Raman spectrum. Vanadium substituted samples exhibit a little variation of Curie temperature and V ions didn't substitute the Nb ions.

The author, Sundarakannan, acknowledges the Japan Society for Promotion of Science (JSPS) for the fellowship and research grant.

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