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Magnetic dielectric composite ceramic material with wide dielectric temperature stability and preparing method of magnetic dielectric composite ceramic material
The invention discloses a magnetic dielectric composite ceramic material with wide dielectric temperature stability and a preparing method of the magnetic dielectric composite ceramic material. Firstly, a normal pressure water phase method is used for preparing single dispersion spherical submicron BaTiO3 powder; then, a precipitation covering method is adopted to obtain YFeO3 covered BaTiO3 base composite powder; finally, the magnetic dielectric composite ceramic material with a core-case structure is obtained through sintering. The material has the composition being BaTiO3+xYFeO3, wherein the x is 2 to 8 mol percent. The sintering temperature of the magnetic dielectric composite ceramic material prepared by the method is 1200 to 1240 DEG C; the ceramic crystal particle dimension can be controlled in a range being 200 to 350nm; the room temperature dielectric constant is 1400 to 2400 (1KHz); the dielectric loss is lower than 2.0 percent (1KHz); the dielectric temperature stability meets the X8R standard; the saturation magnetization intensity is 1.0 to 3.0 emu/g.
Magnetic dielectric composite ceramic material with wide dielectric temperature stability and preparing method of magnetic dielectric composite ceramic material
The invention discloses a magnetic dielectric composite ceramic material with wide dielectric temperature stability and a preparing method of the magnetic dielectric composite ceramic material. Firstly, a normal pressure water phase method is used for preparing single dispersion spherical submicron BaTiO3 powder; then, a precipitation covering method is adopted to obtain YFeO3 covered BaTiO3 base composite powder; finally, the magnetic dielectric composite ceramic material with a core-case structure is obtained through sintering. The material has the composition being BaTiO3+xYFeO3, wherein the x is 2 to 8 mol percent. The sintering temperature of the magnetic dielectric composite ceramic material prepared by the method is 1200 to 1240 DEG C; the ceramic crystal particle dimension can be controlled in a range being 200 to 350nm; the room temperature dielectric constant is 1400 to 2400 (1KHz); the dielectric loss is lower than 2.0 percent (1KHz); the dielectric temperature stability meets the X8R standard; the saturation magnetization intensity is 1.0 to 3.0 emu/g.
Magnetic dielectric composite ceramic material with wide dielectric temperature stability and preparing method of magnetic dielectric composite ceramic material
CUI BIN (Autor:in) / WANG YAN (Autor:in) / MA RONG (Autor:in) / SHANGGUAN MENGQIAN (Autor:in) / LIU YU (Autor:in) / CHANG ZHUGUO (Autor:in)
21.10.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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