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Preparation and Investigation on Properties of the MgTiO3-CaTiO3 Microwave Ceramic Materials

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Abstract:

The MgTiO3 and CaTiO3 powders were synthesized by solid reaction method, and MgTiO3-CaTiO3 ceramic was prepared using pressureless sintering method. The experiment prepared MgTiO3-CaTiO3 ceramics with high compactness and stable permittivity by the way of changing the mole ratio of MgTiO3 and CaTiO3 to investigate the effect of CaTiO3 on the performances of MgTiO3-CaTiO3 ceramics. The results show that Mg2TiO4 formed as second phase during sintering. Volume density and dielectric constant of MgTiO3-CaTiO3 ceramics with 10%mol CaTiO3 reach maximum of 3.612g/cm3 and 17.8, respectively, under 1460°C sintering temperature. And for the MgTiO3-CaTiO3 ceramics with 5%mol CaTiO3 the maximum values which are 3.5g/cm3 and 16.6, respectively, appear under 1510°C sintering temperature.

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Periodical:

Advanced Materials Research (Volume 997)

Pages:

419-423

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.997.419

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Online since:

August 2014

Authors:

Li Dong*, Gui Xia Dong, Yuan Yuan Li, Xi Zhang

Keywords:

Compactness, Dielectric Property, MgTiO3-CaTiO3 Ceramics, Pressureless Sintering, Solid Reaction

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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