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High-energy-storage-density sodium niobate-based lead-free ceramic dielectric material and preparation thereof
The invention relates to the technical field of dielectric materials, in particular to a high-energy-storage-density sodium niobate-based lead-free ceramic dielectric material and preparation thereof, the chemical composition of the ceramic dielectric material is (1-x) (0.75 NaNbO3-0. 25Bi0. 5Na0. 5TiO3)-xSr0. 7Bi0. 2TiO3 + 0.1-0.2 wt% MnCO3, wherein x is equal to 0-0.10, and the preparation method comprises the following steps: mixing raw materials according to the chemical general formula, adding a proper amount of sodium niobate and a proper amount of sodium niobate into the mixed raw materials, and stirring to obtain a mixture; and sequentially carrying out primary ball milling, discharging, drying, pre-sintering, MnCO3 adding, secondary ball milling, drying, sieving, tape casting, isostatic pressing treatment, rubber discharging and sintering to obtain the sodium niobate-based ceramic dielectric material. Compared with the prior art, the material provided by the invention has the advantages of high breakdown electric field intensity, slender ferroelectric hysteresis loop, excellent energy storage characteristic and the like.
本发明涉及电介质材料技术领域，尤其是涉及一种高储能密度铌酸钠基无铅陶瓷介质材料及其制备，该陶瓷介质材料的化学组成为(1‑x)(0.75NaNbO3‑0.25Bi0.5Na0.5TiO3)‑xSr0.7Bi0.2TiO3+0.1‑0.2wt％MnCO3其中x＝0‑0.10，制备方法包括：依照该化学通式，将原料混合，并依次经过一次球磨、出料、烘干、预烧、加入MnCO3、二次球磨、烘干、过筛、流延、等静压处理、排胶、烧结即得到所述铌酸钠基陶瓷介质材料。与现有技术相比，本发明提供的材料具有击穿电场强度高、电滞回线细长、储能特性优异等优点。
High-energy-storage-density sodium niobate-based lead-free ceramic dielectric material and preparation thereof
The invention relates to the technical field of dielectric materials, in particular to a high-energy-storage-density sodium niobate-based lead-free ceramic dielectric material and preparation thereof, the chemical composition of the ceramic dielectric material is (1-x) (0.75 NaNbO3-0. 25Bi0. 5Na0. 5TiO3)-xSr0. 7Bi0. 2TiO3 + 0.1-0.2 wt% MnCO3, wherein x is equal to 0-0.10, and the preparation method comprises the following steps: mixing raw materials according to the chemical general formula, adding a proper amount of sodium niobate and a proper amount of sodium niobate into the mixed raw materials, and stirring to obtain a mixture; and sequentially carrying out primary ball milling, discharging, drying, pre-sintering, MnCO3 adding, secondary ball milling, drying, sieving, tape casting, isostatic pressing treatment, rubber discharging and sintering to obtain the sodium niobate-based ceramic dielectric material. Compared with the prior art, the material provided by the invention has the advantages of high breakdown electric field intensity, slender ferroelectric hysteresis loop, excellent energy storage characteristic and the like.
本发明涉及电介质材料技术领域，尤其是涉及一种高储能密度铌酸钠基无铅陶瓷介质材料及其制备，该陶瓷介质材料的化学组成为(1‑x)(0.75NaNbO3‑0.25Bi0.5Na0.5TiO3)‑xSr0.7Bi0.2TiO3+0.1‑0.2wt％MnCO3其中x＝0‑0.10，制备方法包括：依照该化学通式，将原料混合，并依次经过一次球磨、出料、烘干、预烧、加入MnCO3、二次球磨、烘干、过筛、流延、等静压处理、排胶、烧结即得到所述铌酸钠基陶瓷介质材料。与现有技术相比，本发明提供的材料具有击穿电场强度高、电滞回线细长、储能特性优异等优点。
High-energy-storage-density sodium niobate-based lead-free ceramic dielectric material and preparation thereof
一种高储能密度铌酸钠基无铅陶瓷介质材料及其制备
ZHAI JIWEI (Autor:in) / WANG SIMIN (Autor:in) / LI YANXIA (Autor:in) / SHEN BO (Autor:in)
25.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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