Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a lead-free ultrathin ceramic material with high energy storage performance and a preparation method of the lead-free ultrathin ceramic material, the chemical general formula of the lead-free ultrathin ceramic material is Bi < 0.39 > Na < 0.36 > Sr < 0.25 > Ti < (1-x) > Ta < x > O < 3 >, and x is equal to 0.03-0.07; bi0. 39Na0. 36Sr0. 25TiO3 ceramic with high polarization intensity is selected, and Ta < 5 + > with high valence state is introduced to a B site in the ceramic, so that on one hand, the influence of Ti element valence change on leakage current and compression strength is reduced, and on the other hand, a Sr0. 5BiTaTiO6.5 phase with low dielectric constant is formed; the lead-free ultrathin ceramic material with the thickness smaller than 20 microns is prepared through a solid-phase reaction method and a tape casting process, and the ceramic material has the advantages of being thin in thickness, good in compactness and flatness, low in dielectric loss, high in breakdown electric field resistance strength, excellent in energy storage performance, simple in preparation method and free of lead element. And the requirements of miniaturization and green development of electronic components are met.
本发明公开了一种高能量存储性能的无铅超薄陶瓷材料及其制备方法，所述无铅超薄陶瓷材料的化学通式为Bi0.39Na0.36Sr0.25Ti(1‑x)TaxO3，其中x＝0.03～0.07；通过选取具有高极化强度的Bi0.39Na0.36Sr0.25TiO3陶瓷，向其中的B位引入高价态的Ta5+，一方面减少了Ti元素变价对漏电流和耐压强度的影响，另一方面形成了低介电常数Sr0.5BiTaTiO6.5相；且通过固相反应法和流延成型工艺，制备出厚度小于20μm的无铅超薄陶瓷材料，该陶瓷材料具有厚度薄、致密性和平整度好、介电损耗低、耐击穿电场强度高、能量存储性能优异、制备方法简单、不含铅元素的特点，符合电子元器件小型化、绿色化发展的需要。
The invention discloses a lead-free ultrathin ceramic material with high energy storage performance and a preparation method of the lead-free ultrathin ceramic material, the chemical general formula of the lead-free ultrathin ceramic material is Bi < 0.39 > Na < 0.36 > Sr < 0.25 > Ti < (1-x) > Ta < x > O < 3 >, and x is equal to 0.03-0.07; bi0. 39Na0. 36Sr0. 25TiO3 ceramic with high polarization intensity is selected, and Ta < 5 + > with high valence state is introduced to a B site in the ceramic, so that on one hand, the influence of Ti element valence change on leakage current and compression strength is reduced, and on the other hand, a Sr0. 5BiTaTiO6.5 phase with low dielectric constant is formed; the lead-free ultrathin ceramic material with the thickness smaller than 20 microns is prepared through a solid-phase reaction method and a tape casting process, and the ceramic material has the advantages of being thin in thickness, good in compactness and flatness, low in dielectric loss, high in breakdown electric field resistance strength, excellent in energy storage performance, simple in preparation method and free of lead element. And the requirements of miniaturization and green development of electronic components are met.
本发明公开了一种高能量存储性能的无铅超薄陶瓷材料及其制备方法，所述无铅超薄陶瓷材料的化学通式为Bi0.39Na0.36Sr0.25Ti(1‑x)TaxO3，其中x＝0.03～0.07；通过选取具有高极化强度的Bi0.39Na0.36Sr0.25TiO3陶瓷，向其中的B位引入高价态的Ta5+，一方面减少了Ti元素变价对漏电流和耐压强度的影响，另一方面形成了低介电常数Sr0.5BiTaTiO6.5相；且通过固相反应法和流延成型工艺，制备出厚度小于20μm的无铅超薄陶瓷材料，该陶瓷材料具有厚度薄、致密性和平整度好、介电损耗低、耐击穿电场强度高、能量存储性能优异、制备方法简单、不含铅元素的特点，符合电子元器件小型化、绿色化发展的需要。
Lead-free ultrathin ceramic material with high energy storage performance and preparation method thereof
一种高能量存储性能的无铅超薄陶瓷材料及其制备方法
YAN FEI (Autor:in)
08.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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