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Barium titanate-based high-energy-storage-density electronic ceramic and preparation method thereof
The invention relates to barium titanate-based high-energy-storage-density electronic ceramic and a preparation method thereof. The preparation method comprises the following steps: doping Sr<2+>, Bi<3+>, Mg<2+> and Nb<5+> ions into barium titanate ceramic to form a chemical composition of (1-x)Ba(1-y)SryTiO3-xBi(Mg2/3Nb1/3)03, and enabling the chemical composition to be in a crossed region; and 2, calculating the chemical proportion of the formula components obtained in the step 1, weighing high-purity BaCO3, SrCO3, Bi2O3, MgO, TiO2 and Nb2O5 powder, and carrying out ball-milling drying, presintering, tabletting and sintering to obtain the barium titanate-based high-energy-storage-density electronic ceramic. According to the method, electric domain engineering, Rankine free energy calculation and the like are introduced in the component design process; compared with an existing product, the energy storage performance of the ceramic prepared through a solid-phase method is greatly improved, the technological process is simple, prepared samples are uniform in grain size and high in chemical uniformity and electrical uniformity, and high energy storage density and efficiency are shown.
本发明涉及钛酸钡基高储能密度电子陶瓷及其制备方法，步骤包括：将Sr+,Bi,Mg,Nb离子掺杂进入钛酸钡陶瓷中，形成(1‑x)BaSrTiO‑xBi(MgNb)0的化学组成，使其处于交叉区域内；对步骤一得到的配方组分进行化学比例的计算，称量高纯的BaCO、SrCO、BiO、MgO、TiO及NbO粉末，经球磨烘干、预烧结、压片、烧结，制得钛酸钡基高储能密度电子陶瓷。本发明在组分设计过程中引入电畴工程以及朗道自由能计算等，巧妙的找出交叉区域，固相法制备得到的陶瓷能量存储性能较现有产品有大幅提升，工艺流程简单，制备的样品晶粒大小均匀，化学均匀性以及电学均匀性高，展现出高的能量存储密度和效率。
Barium titanate-based high-energy-storage-density electronic ceramic and preparation method thereof
The invention relates to barium titanate-based high-energy-storage-density electronic ceramic and a preparation method thereof. The preparation method comprises the following steps: doping Sr<2+>, Bi<3+>, Mg<2+> and Nb<5+> ions into barium titanate ceramic to form a chemical composition of (1-x)Ba(1-y)SryTiO3-xBi(Mg2/3Nb1/3)03, and enabling the chemical composition to be in a crossed region; and 2, calculating the chemical proportion of the formula components obtained in the step 1, weighing high-purity BaCO3, SrCO3, Bi2O3, MgO, TiO2 and Nb2O5 powder, and carrying out ball-milling drying, presintering, tabletting and sintering to obtain the barium titanate-based high-energy-storage-density electronic ceramic. According to the method, electric domain engineering, Rankine free energy calculation and the like are introduced in the component design process; compared with an existing product, the energy storage performance of the ceramic prepared through a solid-phase method is greatly improved, the technological process is simple, prepared samples are uniform in grain size and high in chemical uniformity and electrical uniformity, and high energy storage density and efficiency are shown.
本发明涉及钛酸钡基高储能密度电子陶瓷及其制备方法，步骤包括：将Sr+,Bi,Mg,Nb离子掺杂进入钛酸钡陶瓷中，形成(1‑x)BaSrTiO‑xBi(MgNb)0的化学组成，使其处于交叉区域内；对步骤一得到的配方组分进行化学比例的计算，称量高纯的BaCO、SrCO、BiO、MgO、TiO及NbO粉末，经球磨烘干、预烧结、压片、烧结，制得钛酸钡基高储能密度电子陶瓷。本发明在组分设计过程中引入电畴工程以及朗道自由能计算等，巧妙的找出交叉区域，固相法制备得到的陶瓷能量存储性能较现有产品有大幅提升，工艺流程简单，制备的样品晶粒大小均匀，化学均匀性以及电学均匀性高，展现出高的能量存储密度和效率。
Barium titanate-based high-energy-storage-density electronic ceramic and preparation method thereof
钛酸钡基高储能密度电子陶瓷及其制备方法
DAI ZHONGHUA (author) / XIE JINGLONG (author) / FAN XING (author) / LIU WEIGUO (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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