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BaTiO3/Ba(Fe0.5Nb0.5)O3 lamellar ferroelectric composite material as well as preparation method thereof
The invention relates to a BaTiO3/Ba(Fe0.5Nb0.5)O3 lamellar ferroelectric composite material as well as a preparation method thereof. The preparation method comprises the following steps: firstly preparing Ba(Fe0.5Nb0.5)O3 powder and BaTiO3 powder; then granulating the powder and screening the powder to obtain the Ba(Fe0.5Nb0.5)O3 powder and BaTiO3 powder; and carrying out compression moulding on the two powder in a 2-2 composite barrier layer superposition and arrangement manner in a die, cofiring ferro-electric phases in a way of lamellar composition. Interaction of the two phases can be effectively inhibited so as to maintain the characteristics, so that the prepared composite material not only has relatively good ferroelectricity, but also effectively reduces the dielectric loss. According to the prepared lamellar ferroelectric composite material provided by the invention, the dielectric loss is just 0.1-0.2 when the frequency is 100Hz.
BaTiO3/Ba(Fe0.5Nb0.5)O3 lamellar ferroelectric composite material as well as preparation method thereof
The invention relates to a BaTiO3/Ba(Fe0.5Nb0.5)O3 lamellar ferroelectric composite material as well as a preparation method thereof. The preparation method comprises the following steps: firstly preparing Ba(Fe0.5Nb0.5)O3 powder and BaTiO3 powder; then granulating the powder and screening the powder to obtain the Ba(Fe0.5Nb0.5)O3 powder and BaTiO3 powder; and carrying out compression moulding on the two powder in a 2-2 composite barrier layer superposition and arrangement manner in a die, cofiring ferro-electric phases in a way of lamellar composition. Interaction of the two phases can be effectively inhibited so as to maintain the characteristics, so that the prepared composite material not only has relatively good ferroelectricity, but also effectively reduces the dielectric loss. According to the prepared lamellar ferroelectric composite material provided by the invention, the dielectric loss is just 0.1-0.2 when the frequency is 100Hz.
BaTiO3/Ba(Fe0.5Nb0.5)O3 lamellar ferroelectric composite material as well as preparation method thereof
YANG HAIBO (author) / BAI LUYANG (author) / LIN YING (author) / ZHU JIANFENG (author) / WANG FEN (author)
2015-04-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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