Abstract
The effects of CuO additive on the microstructures, the phase formation and the microwave dielectric properties of MgTiO3-CaTiO3 ceramics were investigated. The sintering temperature of CuO-doped 0.95MgTiO3-0.05CaTiO3 (95MCT) ceramics can be lowered to 1275°C due to the liquid phase effect. The microwave dielectric properties are found strongly correlate with the sintering temperature as well as the amount of CuO addition. At 1275°C, 0.95MgTiO3-0.05CaTiO3 ceramics with 0.25wt.% CuO addition possesses a dielectric constant εr of 20, a Q × f value of 51000 (at 7 GHz) and a τf value of -8.3 ppm°C-1. By appropriately adjusting the x value in the (1 - x)MgTiO3-xCaTiO3 ceramic system, zero τf value can be obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 111-115 |
| Number of pages | 5 |
| Journal | Materials Chemistry and Physics |
| Volume | 78 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2003 Feb 3 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
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Huang, C. L., Pan, C. L., & Shium, S. J. (2003). Liquid phase sintering of MgTiO3-CaTiO3 microwave dielectric ceramics. Materials Chemistry and Physics, 78(1), 111-115. https://doi.org/10.1016/S0254-0584(02)00311-5