Tape Casting and Dielectric Properties of Sr2ZnSi2O7-Based Ceramic-Glass Composite for Low-Temperature Co-fired Ceramics Applications
The Sr2ZnSi2O7 ceramics sintered at 1475°C has ɛr=8.5, Qu×f=105,000 GHz (at 12.63 GHz), and τf=−51.5 ppm/°C. The sintering temperature of Sr2ZnSi2O7 has been lowered to 875°C by the addition of 20Li2O–20MgO–20ZnO–20B2O3–20SiO2 (LMZBS) glass. Addition of a small amount of SrTiO3 lowered the value of...
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Published in: | International journal of applied ceramic technology 2011-07, Vol.8 (4), p.854-864 |
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Main Authors: | , , , , |
Format: | Article |
Language: | eng |
Subjects: | |
Online Access: | Request full text |
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Summary: | The Sr2ZnSi2O7 ceramics sintered at 1475°C has ɛr=8.5, Qu×f=105,000 GHz (at 12.63 GHz), and τf=−51.5 ppm/°C. The sintering temperature of Sr2ZnSi2O7 has been lowered to 875°C by the addition of 20Li2O–20MgO–20ZnO–20B2O3–20SiO2 (LMZBS) glass. Addition of a small amount of SrTiO3 lowered the value of τf. Tapes were cast using the composition Sr2ZnSi2O7+15 wt% LMZBS. The stacked and sintered tapes exhibited ɛr∼7 and tan δ∼10−3 at 290 K. The chemical compatibility of Ag with the ceramic–glass composites was also investigated. |
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ISSN: | 1546-542X 1744-7402 |