ISSN:
1551-2916
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Maschinenbau
,
Physik
Notizen:
BaTiO3-based ferroelectric glass-ceramics with the composition 0.65(Ba1−X SrX)TiO3·0.27SiO2·0.08Al2O3 (X= 0.2–0.6) were fabricated, and their tunable dielectric properties were measured at microwave frequency. Major crystalline phases that precipitated during thermal treatment up to 1000°C were (Ba,Sr)TiO3, Ba2TiSi2O8, and BaAl2Si2O8. The Curie temperatures of the heated bulk samples were successfully tuned near room temperature at the composition between X= 0.2 and 0.3. A thick-film sample with X= 0.3 showed 27% tunability at 5 GHz under 10 kV/cm bias voltage.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1551-2916.2004.01602.x
Permalink