摘要
采用传统的玻璃熔融工艺制备M gO-Al2O3-SiO2-B i2O3(MASB)玻璃粉末,研究了其烧结特性和析晶过程。结果表明,该玻璃粉末可在低于900°C烧结。在烧结中玻璃首先析出μ-堇青石,然后转变为α-堇青石,氧化铋没有参与晶相的形成。该微晶玻璃具有低介电常数(5.23),低介电损耗(约0.2%)和低温烧结特性,可用于超高频片式电感领域。
MASB glass powder in MgO-Al2O3-SiO2-Bi2O3system was prepared by conventional melting method. The sintering behavior and crystallization process were investigated by means of TMA, DTA and XRD techniques. The results showed that the glass could be sintered at lower than 900 ℃. The μ-cordierite crystallite was first crystallized from glass, and then transformed into α-cordierite phase during sintering process. Bismuth oxide did not participate the formation of the crystalline phases. The obtained cordierite-based glass-ceramics have low dielectric constant （5.23） and low dielectric dissipation factor （≈0.2%） as well as low-temperature sintering behavior, which is compatible for multilayer chip inductor application.
出处
《压电与声光》
CSCD
北大核心
2005年第4期421-423,共3页
Piezoelectrics & Acoustooptics
基金
广西自然科学基金资助项目(0339066)
关键词
堇青石基微晶玻璃
氧化铋
熔融-烧结工艺
片式电感
cordierite-based glass-ceramics
bismuth oxide
molten-sintering process
multilayer chip inductor
