The special glass ceramics with ferroelectric main-crystalline phase are very usefullbecause of their good electro-optical effect, excellent high dielectric properties and low therm-al expansion coefficient. This kind...The special glass ceramics with ferroelectric main-crystalline phase are very usefullbecause of their good electro-optical effect, excellent high dielectric properties and low therm-al expansion coefficient. This kind of materials has been noticed since the 1960s. Withthe development of ferroelectric nanocrystallites and fine composite technology nowadays, itis desired to get ferroelectric nanocrystallites with better-controlled size and to prepare newcomposite systems. Overcoming agglomeration among ferroelectric ultrafine grains is nec-essary. So it is important in this field to get the ultrafine PbTiO<sub>3</sub> grains in situ confinedgrown in glass with better controlled size.展开更多
基金Project supported by the National Materials Research Project of 863 High Technology.
文摘The special glass ceramics with ferroelectric main-crystalline phase are very usefullbecause of their good electro-optical effect, excellent high dielectric properties and low therm-al expansion coefficient. This kind of materials has been noticed since the 1960s. Withthe development of ferroelectric nanocrystallites and fine composite technology nowadays, itis desired to get ferroelectric nanocrystallites with better-controlled size and to prepare newcomposite systems. Overcoming agglomeration among ferroelectric ultrafine grains is nec-essary. So it is important in this field to get the ultrafine PbTiO<sub>3</sub> grains in situ confinedgrown in glass with better controlled size.
