Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Unleaded ceramic with high voltage and high energy density simultaneously and preparation method for unleaded ceramic
The invention discloses a high-voltage high-energy density unleaded ceramic dielectric material. The components of the material are expressed through the general formula (0.95-x-y-z)Bi0.5Na0.5TiO3-xBi0.5K0.5TiO3-yBa0.65Sr0.35TiO3-zK0.5Na0.5NbO3-0.05LiTaO3, wherein x, y, z represent mole fractions; x is larger than or equal to 0.002 and smaller than or equal to 0.3; y is larger than or equal to 0.002 and smaller than or equal to 0.2; z is larger than or equal to 0.001 and smaller than or equal to 0.3. The material is sintered by adopting electric discharge plasma; uniform dense ceramic texture can be obtained at a low sintering temperature; the ceramic has excellent energy storage density, energy storage efficiency and high voltage electricity constant; the energy storage density can reach 1.75 J/cm<3>; the energy storage efficiency can reach 65%; the piezoelectric constant d33 can reach 682 pm/V; the practicability is good.
Unleaded ceramic with high voltage and high energy density simultaneously and preparation method for unleaded ceramic
The invention discloses a high-voltage high-energy density unleaded ceramic dielectric material. The components of the material are expressed through the general formula (0.95-x-y-z)Bi0.5Na0.5TiO3-xBi0.5K0.5TiO3-yBa0.65Sr0.35TiO3-zK0.5Na0.5NbO3-0.05LiTaO3, wherein x, y, z represent mole fractions; x is larger than or equal to 0.002 and smaller than or equal to 0.3; y is larger than or equal to 0.002 and smaller than or equal to 0.2; z is larger than or equal to 0.001 and smaller than or equal to 0.3. The material is sintered by adopting electric discharge plasma; uniform dense ceramic texture can be obtained at a low sintering temperature; the ceramic has excellent energy storage density, energy storage efficiency and high voltage electricity constant; the energy storage density can reach 1.75 J/cm<3>; the energy storage efficiency can reach 65%; the piezoelectric constant d33 can reach 682 pm/V; the practicability is good.
Unleaded ceramic with high voltage and high energy density simultaneously and preparation method for unleaded ceramic
ZHOU CHANGRONG (Autor:in) / XU JIWEN (Autor:in) / YUAN CHANGLAI (Autor:in) / LI QINGNING (Autor:in) / ZENG WEIDONG (Autor:in) / CHEN GUOHUA (Autor:in)
17.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2018
| Europäisches Patentamt | 2016