Liquid phase sintering of MgTiO3-CaTiO3 microwave dielectric ceramics

Cheng Liang Huang, Chung Long Pan, Shen Jiunn Shium

研究成果: Article同行評審

95 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)111-115
頁數5
期刊Materials Chemistry and Physics
78
發行號1
DOIs
出版狀態Published - 2003 2月 3

All Science Journal Classification (ASJC) codes

  • 一般材料科學
  • 凝聚態物理學

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