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Preparation method of SOFC (solid oxide fuel cell) ceramic support material
The invention provides a magnesium-aluminum composite ceramic material as well as a preparation method and application thereof, and belongs to the technical field of solid oxide fuel cells. A pore-forming agent is not adopted, a magnesium-aluminum composite ceramic material precursor containing a large number of anions is used as a raw material, MgO and Al2O3 powder are used for regulating and controlling the composition proportion of the finally prepared magnesium-aluminum composite ceramic material, then co-grinding, blank making and sintering are carried out, the volume change generated by phase structure transformation of an Mg-Al-O system in the ceramic is fully utilized, and the magnesium-aluminum composite ceramic material is obtained. And thus, the porous magnesium-aluminum composite ceramic material is obtained by in-situ self-assembly pore-forming. The magnesium-aluminum composite ceramic material prepared by the method can be directly used for manufacturing an SOFC (Solid Oxide Fuel Cell) ceramic outer support body, and the prepared ceramic outer support body has the characteristics of controllable components and adjustable thermal expansion coefficient, can adapt to most SOFC battery materials in the market, and can effectively reduce the production cost of the SOFC.
本发明提供了一种镁铝复合陶瓷材料及其制备方法和应用，属于固体氧化物燃料电池技术领域。本发明不采用造孔剂，而是以含有大量阴离子的镁铝复合陶瓷材料前驱体为原料，并利用MgO和Al2O3粉末调控其最后制得的镁铝复合陶瓷材料的成分配比，然后通过共磨、制坯、烧结，充分利用陶瓷中Mg‑Al‑O体系自身物相结构转变产生体积变化，从而原位自组装造孔而获得多孔的镁铝复合陶瓷材料。本发明制备得到的镁铝复合陶瓷材料可直接用于SOFC陶瓷外支撑体的制作，所制备的陶瓷外支撑体具有成分可控、热膨胀系数可调的特点，可适配市面上绝大部分的SOFC电池材料，能有效降低SOFC生产成本。
Preparation method of SOFC (solid oxide fuel cell) ceramic support material
The invention provides a magnesium-aluminum composite ceramic material as well as a preparation method and application thereof, and belongs to the technical field of solid oxide fuel cells. A pore-forming agent is not adopted, a magnesium-aluminum composite ceramic material precursor containing a large number of anions is used as a raw material, MgO and Al2O3 powder are used for regulating and controlling the composition proportion of the finally prepared magnesium-aluminum composite ceramic material, then co-grinding, blank making and sintering are carried out, the volume change generated by phase structure transformation of an Mg-Al-O system in the ceramic is fully utilized, and the magnesium-aluminum composite ceramic material is obtained. And thus, the porous magnesium-aluminum composite ceramic material is obtained by in-situ self-assembly pore-forming. The magnesium-aluminum composite ceramic material prepared by the method can be directly used for manufacturing an SOFC (Solid Oxide Fuel Cell) ceramic outer support body, and the prepared ceramic outer support body has the characteristics of controllable components and adjustable thermal expansion coefficient, can adapt to most SOFC battery materials in the market, and can effectively reduce the production cost of the SOFC.
本发明提供了一种镁铝复合陶瓷材料及其制备方法和应用，属于固体氧化物燃料电池技术领域。本发明不采用造孔剂，而是以含有大量阴离子的镁铝复合陶瓷材料前驱体为原料，并利用MgO和Al2O3粉末调控其最后制得的镁铝复合陶瓷材料的成分配比，然后通过共磨、制坯、烧结，充分利用陶瓷中Mg‑Al‑O体系自身物相结构转变产生体积变化，从而原位自组装造孔而获得多孔的镁铝复合陶瓷材料。本发明制备得到的镁铝复合陶瓷材料可直接用于SOFC陶瓷外支撑体的制作，所制备的陶瓷外支撑体具有成分可控、热膨胀系数可调的特点，可适配市面上绝大部分的SOFC电池材料，能有效降低SOFC生产成本。
Preparation method of SOFC (solid oxide fuel cell) ceramic support material
一种SOFC陶瓷支撑体材料的制备方法
ZHENG SONGSHENG (author) / ZHANG YUHANG (author) / TAN YIYONG (author) / DENG LIANG (author) / WANG ZHAOLIN (author)
2023-11-14
Patent
Electronic Resource
Chinese
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