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Dielectric energy storage ceramic and preparation method thereof
The invention discloses dielectric energy storage ceramic and a preparation method thereof. The dielectric energy storage ceramic is represented by the formula of Re0.02Sr0.97TiO3+x%MnO2+y%ZnNb2O6, wherein Re is La or Nd or Sm or Gd, MnO2 and ZnNb2O6 are additionally added, x is larger than or equal to 0.1 and is smaller than or equal to 0.3, y is larger than or equal to 1.5 and is smaller than or equal to 7.5, and x and y are mass fractions. Rare earth is adopted in strontium titanate, zinc niobate is added, and one-step sintering is adopted to obtain the ceramic with the uniform density and fine grain structure. The ceramic has the excellent dielectric property, the energy storage density can reach 2.98 J/cm<3>, the energy storage efficiency can reach more than 90%, the disruptive strength can reach 535 kV/cm, and the ceramic has the advantages of being high in voltage resistance, energy storage density and energy storage efficiency and has the good application prospect in the field of pulse power sources.
Dielectric energy storage ceramic and preparation method thereof
The invention discloses dielectric energy storage ceramic and a preparation method thereof. The dielectric energy storage ceramic is represented by the formula of Re0.02Sr0.97TiO3+x%MnO2+y%ZnNb2O6, wherein Re is La or Nd or Sm or Gd, MnO2 and ZnNb2O6 are additionally added, x is larger than or equal to 0.1 and is smaller than or equal to 0.3, y is larger than or equal to 1.5 and is smaller than or equal to 7.5, and x and y are mass fractions. Rare earth is adopted in strontium titanate, zinc niobate is added, and one-step sintering is adopted to obtain the ceramic with the uniform density and fine grain structure. The ceramic has the excellent dielectric property, the energy storage density can reach 2.98 J/cm<3>, the energy storage efficiency can reach more than 90%, the disruptive strength can reach 535 kV/cm, and the ceramic has the advantages of being high in voltage resistance, energy storage density and energy storage efficiency and has the good application prospect in the field of pulse power sources.
Dielectric energy storage ceramic and preparation method thereof
CHEN GUOHUA (Autor:in) / TANG XIAOLING (Autor:in) / YUAN CHANGLAI (Autor:in) / ZHOU CHANGRONG (Autor:in)
23.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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