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Lead-free sodium bismuth titanate-based X9R type ceramic capacitor material and preparation method thereof
The invention discloses a lead-free sodium bismuth titanate-based X9R type ceramic capacitor material and a preparation method thereof, and belongs to the technical field of electronic ceramic application. The chemical formula of the X9R type ceramic capacitor material is 0.7(0.94Na0.5Bi0.5TiO3-0.06BaTiO3)-0.3KTaO3. The preparation method comprises the steps: taking TiO2, Bi2O3, Na2CO3, BaCO3, K2CO3 and Ta2O5 for batching, carrying out ball milling, refining the raw materials, carrying out pre-sintering, secondary ball milling and other processes, and finally preparing the X9R type ceramic capacitor dielectric material by utilizing a solid-phase reaction and carbonate decomposition process. The material can meet the requirement that ([delta]C/C25) of X9R is less than or equal to +/-15% within the temperature range of -55 DEG C to 200 DEG C, has the characteristics of wide working temperature and high stability, and meets wide-temperature field application of electronic component design; the preparation method is simple, easy in reaction condition control, high in repeatability, low in cost, suitable for large-scale production and suitable for industrial production.
本发明公开了一种无铅钛酸铋钠基X9R型陶瓷电容器材料及其制备方法,属于电子陶瓷应用技术领域。其化学式为0.7(0.94Na0.5Bi0.5TiO3‑0.06BaTiO3)‑0.3KTaO3，制备方法是取TiO2﹑Bi2O3、Na2CO3、BaCO3、K2CO3、Ta2O5进行配料，进行球磨，细化原料，经预烧及二次球磨等工序利用固相反应和碳酸盐分解过程，最终制得X9R型陶瓷电容器介质材料。这种材料可以满足X9R在‑55℃～200℃温度范围内满足(ΔC/C25)≤±15％，具有宽工作温度、高稳定性的特点，满足电子元器件设计的宽温领域应用化，同时制备方法简单，反应条件容易控制、可重复性高、成本低，可大规模生产，适合工业化生产。
Lead-free sodium bismuth titanate-based X9R type ceramic capacitor material and preparation method thereof
The invention discloses a lead-free sodium bismuth titanate-based X9R type ceramic capacitor material and a preparation method thereof, and belongs to the technical field of electronic ceramic application. The chemical formula of the X9R type ceramic capacitor material is 0.7(0.94Na0.5Bi0.5TiO3-0.06BaTiO3)-0.3KTaO3. The preparation method comprises the steps: taking TiO2, Bi2O3, Na2CO3, BaCO3, K2CO3 and Ta2O5 for batching, carrying out ball milling, refining the raw materials, carrying out pre-sintering, secondary ball milling and other processes, and finally preparing the X9R type ceramic capacitor dielectric material by utilizing a solid-phase reaction and carbonate decomposition process. The material can meet the requirement that ([delta]C/C25) of X9R is less than or equal to +/-15% within the temperature range of -55 DEG C to 200 DEG C, has the characteristics of wide working temperature and high stability, and meets wide-temperature field application of electronic component design; the preparation method is simple, easy in reaction condition control, high in repeatability, low in cost, suitable for large-scale production and suitable for industrial production.
本发明公开了一种无铅钛酸铋钠基X9R型陶瓷电容器材料及其制备方法,属于电子陶瓷应用技术领域。其化学式为0.7(0.94Na0.5Bi0.5TiO3‑0.06BaTiO3)‑0.3KTaO3，制备方法是取TiO2﹑Bi2O3、Na2CO3、BaCO3、K2CO3、Ta2O5进行配料，进行球磨，细化原料，经预烧及二次球磨等工序利用固相反应和碳酸盐分解过程，最终制得X9R型陶瓷电容器介质材料。这种材料可以满足X9R在‑55℃～200℃温度范围内满足(ΔC/C25)≤±15％，具有宽工作温度、高稳定性的特点，满足电子元器件设计的宽温领域应用化，同时制备方法简单，反应条件容易控制、可重复性高、成本低，可大规模生产，适合工业化生产。
Lead-free sodium bismuth titanate-based X9R type ceramic capacitor material and preparation method thereof
一种无铅钛酸铋钠基X9R型陶瓷电容器材料及其制备方法
WANG CHUNCHANG (author) / CAO WENJUN (author) / LI TIANYU (author)
2021-07-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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