Title of article
Temperature compensated Sr2Al2SiO7 ceramic for microwave applications
Author/Authors
Kurusaroor M. Manu، نويسنده , , Tony Joseph، نويسنده , , Mailadil T. Sebastian، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2012
Pages
3
From page
21
To page
23
Abstract
The Sr–Gehlenite (Sr2Al2SiO7) ceramic has been prepared by the conventional solid-state ceramic route. Phase pure Sr2Al2SiO7 (SAS) ceramic sintered at 1525 °C for 4 h has ɛr = 7.2 and Qu × f = 33,000 GHz. The SAS showed large negative τf of −37.0 ppm/ °C. A low value of τf was achieved by preparing SAS–CaTiO3 composite. The composite with 0.04 volume fractions (Vf) CaTiO3 sintered at 1500 °C for 4 h showed good microwave dielectric properties: ɛr = 8.6, Qu × f = 20,400 GHz and τf = +8.5 ppm/°C.
Keywords
B. Sintering , A. Ceramics , C. Electron microscopy , Microwave dielectric properties , X-ray diffraction
Journal title
Materials Chemistry and Physics
Serial Year
2012
Journal title
Materials Chemistry and Physics
Record number
1059407
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