| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1652139 | Materials Letters | 2007 | 4 Pages |
Abstract
Microwave dielectric characteristics of alumina ceramics with yttria addition were investigated. The sintering temperature was lowered, and the dielectric constant (εr) did not remarkably change by adding yttria. The microwave dielectric loss (tan δ) increased from 8.4 × 10− 5 to 2.2 × 10− 4, due to the presence of Al5Y3O12 secondary phase. The grain size had significant effects on the dielectric loss, and there was an optimum grain size where the dielectric loss reached the minimum.
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Authors
K.X. Song, S.Y. Wu, X.M. Chen,