Effects of heating rate on sintering of alkoxide-derived BaTi 5 O 11 powder
作者： Toshimi Fukui , Chihiro Sakurai , Masahiko Okuyama
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摘要: The effects of heating rate on the sintering BaTi5O11 ceramics from an alkoxide-derived powder were investigated, and microwave properties measured. Density crystalline phase sintered bodies varied with rate. increased increase in up to 30 °C/min decreased at one exceeding °C/min. >99% theoretical density obtained by 1120 °C for 48 h a 100 resulted decomposition Ba2Ti9O20 rutile that hindered sintering. dielectric constant e r Q volume, neither sensitive microstructure or phase, 42 ca. 6100 9.7 GHz, respectively. temperature coefficient resonant frequency τf was 39.3 ppm/°C 7 GHz.
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