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Barium strontium titanate ceramic material matched with base metal inner electrode and preparation method of barium strontium titanate ceramic material
The invention provides a barium strontium titanate ceramic material matched with a base metal inner electrode and a preparation method thereof. The preparation method comprises the following steps: mixing barium strontium titanate with zirconium balls and a solvent, carrying out mixed ball milling, filtering out slurry after ball milling, drying to obtain a dry powder product, and calcining the dry powder product to obtain a calcined product; mixing the calcined product and a binder, and granulating to obtain powder particles; carrying out molding treatment on the powder particles to obtain a ceramic green body; and putting the ceramic green body into an atmosphere furnace for atmosphere sintering to obtain the barium strontium titanate block ceramic material. By doping Sr <2+> in the barium strontium titanate ceramic, the barium titanate ceramic is converted from a normal ferroelectric to a relaxation ferroelectric, and the ferroelectric phase-paraelectric phase conversion temperature range is widened; in the design of an electrocaloric solid-state refrigeration device based on a multilayer ceramic structure, a base metal nickel/copper inner electrode is an optimal choice.
本发明提供一种在与贱金属内电极适配的钛酸锶钡陶瓷材料及其制备方法，包括以下步骤：将、和混合后与锆球、溶剂进行混合球磨，球磨完毕后滤出浆料并干燥得到干粉产物，将干粉产物煅烧，得到煅烧产物；将煅烧产物和粘结剂混合后造粒，得到粉粒；对粉粒进行成型处理，得到陶瓷生坯；将陶瓷生坯放入气氛炉进行气氛烧结，得到钛酸锶钡块体陶瓷材料。本发明钛酸锶钡陶瓷中Sr2+的掺杂使钛酸钡陶瓷由正常铁电体向弛豫型铁电体转变，扩宽了铁电相—顺电相的转变温度范围；在基于多层陶瓷结构的电卡固态制冷装置设计中，贱金属镍/铜内电极是最优选择。
Barium strontium titanate ceramic material matched with base metal inner electrode and preparation method of barium strontium titanate ceramic material
The invention provides a barium strontium titanate ceramic material matched with a base metal inner electrode and a preparation method thereof. The preparation method comprises the following steps: mixing barium strontium titanate with zirconium balls and a solvent, carrying out mixed ball milling, filtering out slurry after ball milling, drying to obtain a dry powder product, and calcining the dry powder product to obtain a calcined product; mixing the calcined product and a binder, and granulating to obtain powder particles; carrying out molding treatment on the powder particles to obtain a ceramic green body; and putting the ceramic green body into an atmosphere furnace for atmosphere sintering to obtain the barium strontium titanate block ceramic material. By doping Sr <2+> in the barium strontium titanate ceramic, the barium titanate ceramic is converted from a normal ferroelectric to a relaxation ferroelectric, and the ferroelectric phase-paraelectric phase conversion temperature range is widened; in the design of an electrocaloric solid-state refrigeration device based on a multilayer ceramic structure, a base metal nickel/copper inner electrode is an optimal choice.
本发明提供一种在与贱金属内电极适配的钛酸锶钡陶瓷材料及其制备方法，包括以下步骤：将、和混合后与锆球、溶剂进行混合球磨，球磨完毕后滤出浆料并干燥得到干粉产物，将干粉产物煅烧，得到煅烧产物；将煅烧产物和粘结剂混合后造粒，得到粉粒；对粉粒进行成型处理，得到陶瓷生坯；将陶瓷生坯放入气氛炉进行气氛烧结，得到钛酸锶钡块体陶瓷材料。本发明钛酸锶钡陶瓷中Sr2+的掺杂使钛酸钡陶瓷由正常铁电体向弛豫型铁电体转变，扩宽了铁电相—顺电相的转变温度范围；在基于多层陶瓷结构的电卡固态制冷装置设计中，贱金属镍/铜内电极是最优选择。
Barium strontium titanate ceramic material matched with base metal inner electrode and preparation method of barium strontium titanate ceramic material
一种在与贱金属内电极适配的钛酸锶钡陶瓷材料及其制备方法
LU SHENGGUO (Autor:in) / LIANG WEI (Autor:in) / NIU XIANG (Autor:in) / JIAN XIAODONG (Autor:in) / ZHAO XIAOBO (Autor:in) / YAO YINGBANG (Autor:in) / TAO TAO (Autor:in) / LIANG BO (Autor:in)
28.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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