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Method for manufacturing low dielectric loss CaCu3Ti4O12 ceramic
The invention discloses a method for manufacturing low dielectric loss CaCu3Ti4O12 ceramic materials by using a sol-gel method and belongs to the technical field of dielectric substances. The method specifically includes the following steps: adopting the sol-gel method, utilizing calcium nitrate, cupric nitrate and butyl titanate as raw materials, utilizing absolute ethyl alcohol as a solvent, utilizing nitric acid to adjust the pH value of the solution, weighing the raw materials according to the proportion to form the sol, then placing the sol into a water bath at the temperature of 80 DEG C, stirring continuously till xerogel is formed, utilizing an electric furnace and a muffle furnace to remove organics, burning and breaking obtained precursor powder, then adding adhesive to conduct grinding and pelleting to obtain a ceramic blank 1 mm in thickness and 12 mm in diameter, placing the blank into a sintering furnace to conduct sintering and keep the temperature, and finally acquiring CaCu3Ti4O12 ceramic samples with high dielectric constant and low dielectric loss. The method is simple in process and easy to operate. The manufactured ceramic samples are compact, uniform, stable in dielectric constant and low in dielectric loss.
Method for manufacturing low dielectric loss CaCu3Ti4O12 ceramic
The invention discloses a method for manufacturing low dielectric loss CaCu3Ti4O12 ceramic materials by using a sol-gel method and belongs to the technical field of dielectric substances. The method specifically includes the following steps: adopting the sol-gel method, utilizing calcium nitrate, cupric nitrate and butyl titanate as raw materials, utilizing absolute ethyl alcohol as a solvent, utilizing nitric acid to adjust the pH value of the solution, weighing the raw materials according to the proportion to form the sol, then placing the sol into a water bath at the temperature of 80 DEG C, stirring continuously till xerogel is formed, utilizing an electric furnace and a muffle furnace to remove organics, burning and breaking obtained precursor powder, then adding adhesive to conduct grinding and pelleting to obtain a ceramic blank 1 mm in thickness and 12 mm in diameter, placing the blank into a sintering furnace to conduct sintering and keep the temperature, and finally acquiring CaCu3Ti4O12 ceramic samples with high dielectric constant and low dielectric loss. The method is simple in process and easy to operate. The manufactured ceramic samples are compact, uniform, stable in dielectric constant and low in dielectric loss.
Method for manufacturing low dielectric loss CaCu3Ti4O12 ceramic
SUN LI (Autor:in) / HAO WENTAO (Autor:in) / WANG ZHENDUO (Autor:in) / CAO ENSI (Autor:in) / ZHANG YONGJIA (Autor:in)
26.08.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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