Preparation method of heterogeneous stacked multilayer ceramic capacitor of antiferroelectric material system

Abstract

The invention discloses a method for preparing a heterogeneous stacked multilayer ceramic capacitor based on an antiferroelectric material system, which belongs to the technical field of electronic information materials and components. First, according to Pb respectively (1‑1.5x) La x Zr (1‑y1‑z1) sn y1 Ti z1 o 3 and Pb (1‑1.5x) La x Zr (1‑y2‑z2) sn y2 Ti z2 o 3 Structural formula, weighing and mixing, to obtain powders A and B; then, powder A and powder B were ball milled, dried, pre-calcined, secondary ball milled, and cast to obtain monolayer film A and monolayer Film B: Composite single-layer film A and single-layer film B according to the "AB" or "ABA" method as the dielectric layer, and screen-print metal as the electrode layer to prepare a multilayer ceramic capacitor. The multilayer ceramic capacitor obtained by the invention has an interface enhancement effect, can effectively improve the breakdown strength and polarization strength, and further increase the energy storage density of the capacitor.

Description

Preparation method of heterogeneous stacked multilayer ceramic capacitor of antiferroelectric material system technical field The invention belongs to the technical field of electronic information materials and components, and is specifically related to a kind of antiferroelectric material of heterogeneous stacking A preparation method of a material system multilayer ceramic capacitor. Background technique [0002] Pulse power capacitors play an important role in electromagnetic guns, laser ignition, and deep well detection. With the Section With the development of technology, the trend of miniaturization and high power has become more and more significant, especially for shipboard, vehicle, airborne and even satellite Loaded pulse power system, put forward higher and more specific requirements. The traditional zirconium tin titanate lanthanum lead system, due to having a high stubborn field, a higher polarization intensity, the energy storage density can reach To 4...

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Problems solved by technology

However, the zirconium tin titanate lead lanthanum antiferroelectric material system has piezoelectric properties, and there is a certain strain during the charging and discharging process, which is the bottleneck problem that the capacitor fails and the energy storage density cannot be further improved.

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