Record number :
1408222
Title of article :
Microwave dielectric properties and sintering behaviors of scheelite compound CaMoO4
Author/Authors :
Choi، نويسنده , , Geun-Kyu and Cho، نويسنده , , Seo-Yong and An، نويسنده , , Jae-Sul and Hong، نويسنده , , Kug Sun، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
5
From page :
2011
To page :
2015
Abstract :
The microwave dielectric properties, sintering behaviors of scheelite compound CaMoO4 were investigated using dilatometry, X-ray diffraction, scanning electron microscopy and network analyzer. To improve the sintering property of CaMoO4, samples with different Ca/Mo ratio were prepared. The bulk densities of CaMo(x)O4 (for x = 1.02, 1.05, 1.08) samples were higher than those of pure CaMoO4 over all temperature range. The well-sintered CaMo(x)O4 (for x = 1.02) sample with ∼95.7% of the theoretical density shows Q × f value of 71,000 GHz and dielectric constant (ɛr) = 10.3. The effects of liquid phase formation on sintering process and dielectric properties were discussed. Sample with hot-press sintering was also prepared in order to investigate dielectric properties of fully dense CaMoO4, which exhibited quality factor (Q × f), ∼55,000 GHz and dielectric constant (ɛr) = 11.7.
Keywords :
HOT PRESSING , Sintering , porosity , substrates
Journal title :
Journal of the European Ceramic Society
Journal title :
Journal of the European Ceramic Society
Serial Year :
2006
Link To Document :
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