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Lead-free bismuth ferrite-based ceramic material and preparation method thereof
The invention relates to a lead-free bismuth ferrite-based ceramic material. The chemical composition of the lead-free bismuth ferrite-based ceramic material is (1-x)[(1-y)BiFeO3-yBaTiO3]-xNa0.73Bi0.09NbO3+zMn3O4; the lead-free bismuth ferrite-based ceramic material is prepared by adopting a solid-phase reaction method and a tape casting method. The preparation method comprises the steps: proportioning raw materials according to a stoichiometric ratio, carrying out primary ball milling, and calcining at the temperature of 720-750 DEG C to obtain pre-synthesized powder; carrying out secondary ball milling, sieving, tape casting and other processes to obtain a bismuth ferrite-based leadless high-energy-storage-density and high-energy-storage-efficiency ceramic green body; and finally, carrying out high-temperature sintering at the temperature of 1000-1020 DEG C to obtain the lead-free bismuth ferrite-based ceramic material. Compared with the prior art, the material has the advantages ofbeing high in energy storage density and energy storage efficiency, low in sintering temperature, stable in preparation process, capable of meeting the requirement for lead-free development of electronic components, high in practicability and the like.
本发明涉及一种无铅铁酸铋基陶瓷材料，该无铅铁酸铋基陶瓷材料的化学组成为(1‑x)[(1‑y)BiFeO‑yBaTiO]‑xNaBiNbO+zMnO；该无铅铁酸铋基陶瓷材料采用固相反应法和流延成型法进行制备，包括将原料按化学计量比进行配料、一次球磨、经720‑750℃煅烧后得到预合成的粉体，再经过二次球磨、过筛、流延成型等工艺得到铁酸铋基无铅高储能密度和储能效率陶瓷生坯，最后在1000‑1020℃高温烧结后得到无铅铁酸铋基陶瓷材料。与现有技术相比，本发明具有储能密度和储能效率高、烧结温度低、制备工艺稳定、符合电子元器件无铅化发展的要求、实用性高等优点。
Lead-free bismuth ferrite-based ceramic material and preparation method thereof
The invention relates to a lead-free bismuth ferrite-based ceramic material. The chemical composition of the lead-free bismuth ferrite-based ceramic material is (1-x)[(1-y)BiFeO3-yBaTiO3]-xNa0.73Bi0.09NbO3+zMn3O4; the lead-free bismuth ferrite-based ceramic material is prepared by adopting a solid-phase reaction method and a tape casting method. The preparation method comprises the steps: proportioning raw materials according to a stoichiometric ratio, carrying out primary ball milling, and calcining at the temperature of 720-750 DEG C to obtain pre-synthesized powder; carrying out secondary ball milling, sieving, tape casting and other processes to obtain a bismuth ferrite-based leadless high-energy-storage-density and high-energy-storage-efficiency ceramic green body; and finally, carrying out high-temperature sintering at the temperature of 1000-1020 DEG C to obtain the lead-free bismuth ferrite-based ceramic material. Compared with the prior art, the material has the advantages ofbeing high in energy storage density and energy storage efficiency, low in sintering temperature, stable in preparation process, capable of meeting the requirement for lead-free development of electronic components, high in practicability and the like.
本发明涉及一种无铅铁酸铋基陶瓷材料，该无铅铁酸铋基陶瓷材料的化学组成为(1‑x)[(1‑y)BiFeO‑yBaTiO]‑xNaBiNbO+zMnO；该无铅铁酸铋基陶瓷材料采用固相反应法和流延成型法进行制备，包括将原料按化学计量比进行配料、一次球磨、经720‑750℃煅烧后得到预合成的粉体，再经过二次球磨、过筛、流延成型等工艺得到铁酸铋基无铅高储能密度和储能效率陶瓷生坯，最后在1000‑1020℃高温烧结后得到无铅铁酸铋基陶瓷材料。与现有技术相比，本发明具有储能密度和储能效率高、烧结温度低、制备工艺稳定、符合电子元器件无铅化发展的要求、实用性高等优点。
Lead-free bismuth ferrite-based ceramic material and preparation method thereof
一种无铅铁酸铋基陶瓷材料及其制备方法
ZHAI JIWEI (author) / YAN FEI (author) / SHEN BO (author)
2020-05-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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