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:
(1-x) Ca2/5Sm2/5TiO3-x Li1/2Nd1/2TiO3 (CSLNT) ceramics, suitable for use in resonators orfilters at microwave frequency, have a high εr and a low temperature coefficient of resonant frequency.The effects of calcinations on the microwave dielectric properties of CSLNT were studied. The CSLNT(x = 0.3) ceramics sintered at 1300oC for 3 h showed microwave properties with εr of 92, Qf of 5060 GHzand τf of 7.5 ppm/oC. The microwave dielectric properties of CSLNT (x = 0.3) ceramics were alsoimproved by soft chemistry methods such as citric acid gel route and ethylenediaminetetraacetic acid(EDTA) chelating method. The excellent microwave properties with εr = 96, Qf = 6290 GHz and τf = 6ppm/oC were obtained by EDTA chelating method for CSLNT (x = 0.3) ceramics
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.293.pdf
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