Effects of Glass Additions on (Zr,Sn)TiO4 for Microwave Applications |
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| Authors: | Takahiro Takada Sea Fue Wang Shoko Yoshikawa Sei-Joo Jang Robert E Newnham |
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| Affiliation: | Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania–16802 |
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| Abstract: | The effects of glass additions on the properties of (Zr,Sn)TiO4 as a microwave dielectric material were investigated. The (Zr,Sn)TiO4 ceramics with no glass addition sintered at 1360°C gave Q = 4900 and K = 37 at 7.9 GHz. Several glasses, including SiO2, B2O3, 5ZnO–2B2O3, and nine commercial glasses, were tested during this study. Among these glasses, (Zr,Sn)TiO4 sintered with ZnO-B2O3–SiO2 (Corning 7574) showed more than 20% higher density than that of pure (Zr,Sn)TiO4 sintered at the same temperature. A 5-wt% addition of SiO2, to (Zr,Sn)TiO4, when sintered at 1200°C, gave the best Q : Q = 2700 at 9 GHz. Results of XRD analysis and scanning electron microscopy and the effect of glass content are also presented. |
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