A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of dielectric materials, and particularly relates to a non-stoichiometric lead-free ferroelectric ceramic material and a preparation method and application thereof. The invention provides a non-stoichiometric lead-free ferroelectric ceramic material which has a structure as shown in a formula I, the formula I is Ba < x > La < y > Sn < z > Ti < 1-z > O < 3 >; x in the formula I ranges from 0.9775 to 1; y in the formula I ranges from 0 to 0.045. And z in the formula I ranges from 0.1 to 0.11. The invention provides a preparation method of the non-stoichiometric lead-free ferroelectric ceramic material, which comprises the following steps: mixing and ball-milling a titanium source, a tin source, a barium source and a lanthanum source to obtain powder; heating and reacting the powder to obtain a synthetic material; carrying out molding treatment on the synthetic material to obtain a green body; and degumming and sintering the green body to obtain the material with the structure as shown in the formula I. The material provided by the invention can effectively solve the technical defects of low energy storage density and no environmental protection of the existing dielectric material.
本申请属于电介质材料技术领域，尤其涉及一种非化学计量比无铅铁电陶瓷材料及其制备方法和应用。本申请提供了一种非化学计量比无铅铁电陶瓷材料，具有式Ⅰ结构；所述式Ⅰ为BaxLaySnzTi1‑zO3；式Ⅰ的x范围为0.9775～1；式Ⅰ的y范围为0～0.045。式Ⅰ的z范围为0.1～0.11。本申请提供非化学计量比无铅铁电陶瓷材料的制备方法，包括：将钛源、锡源、钡源和镧源混合球磨，得到粉料；将所述粉料加热反应，得到合成料；将所述合成料进行成型处理，得到坯体；将所述坯体排胶和烧结后，得到具有式Ⅰ结构的材料。本申请提供的材料，能有效解决现有的电介质材料存在的储能密度低，不环保的技术缺陷。
The invention belongs to the technical field of dielectric materials, and particularly relates to a non-stoichiometric lead-free ferroelectric ceramic material and a preparation method and application thereof. The invention provides a non-stoichiometric lead-free ferroelectric ceramic material which has a structure as shown in a formula I, the formula I is Ba < x > La < y > Sn < z > Ti < 1-z > O < 3 >; x in the formula I ranges from 0.9775 to 1; y in the formula I ranges from 0 to 0.045. And z in the formula I ranges from 0.1 to 0.11. The invention provides a preparation method of the non-stoichiometric lead-free ferroelectric ceramic material, which comprises the following steps: mixing and ball-milling a titanium source, a tin source, a barium source and a lanthanum source to obtain powder; heating and reacting the powder to obtain a synthetic material; carrying out molding treatment on the synthetic material to obtain a green body; and degumming and sintering the green body to obtain the material with the structure as shown in the formula I. The material provided by the invention can effectively solve the technical defects of low energy storage density and no environmental protection of the existing dielectric material.
本申请属于电介质材料技术领域，尤其涉及一种非化学计量比无铅铁电陶瓷材料及其制备方法和应用。本申请提供了一种非化学计量比无铅铁电陶瓷材料，具有式Ⅰ结构；所述式Ⅰ为BaxLaySnzTi1‑zO3；式Ⅰ的x范围为0.9775～1；式Ⅰ的y范围为0～0.045。式Ⅰ的z范围为0.1～0.11。本申请提供非化学计量比无铅铁电陶瓷材料的制备方法，包括：将钛源、锡源、钡源和镧源混合球磨，得到粉料；将所述粉料加热反应，得到合成料；将所述合成料进行成型处理，得到坯体；将所述坯体排胶和烧结后，得到具有式Ⅰ结构的材料。本申请提供的材料，能有效解决现有的电介质材料存在的储能密度低，不环保的技术缺陷。
Non-stoichiometric lead-free ferroelectric ceramic material as well as preparation method and application thereof
一种非化学计量比无铅铁电陶瓷材料及其制备方法和应用
2021-06-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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