A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-weather-resistance ceramic diaphragm tube and preparation method thereof
The invention discloses a high-weather-resistance ceramic diaphragm tube and a preparation method thereof, and belongs to the technical field of ceramic diaphragms, (Ba0. 7Ca0. 3) ZrO3 powder is of a perovskite structure in a cubic phase form, and has ferroelectricity when the temperature is lower than the Curie temperature; in the subsequent steps, the (Ba0. 7Ca0. 3) ZrO3 powder and other raw materials are mixed to prepare mixed powder, then a mold is filled with the mixed powder to prepare a green body, the ceramic is generated in the high-temperature sintering process, phase change occurs to crystal grains in the (Ba0. 7Ca0. 3) ZrO3 powder, the symmetry of the crystal structure is improved, and the crystal grains are reformed after the (Ba0. 7Ca0. 3) ZrO3 powder and the raw materials such as SiC powder and Al2O3 powder are sintered; compared with common aluminum oxide ceramic, the ceramic diaphragm tube is more compact and regular and has better corrosion resistance, meanwhile, ferroelectricity of the raw material (Ba0. 7Ca0. 3) ZrO3 is removed, a good electron blocking function is achieved, and the using effect of the ceramic diaphragm tube in an electrolysis device is guaranteed.
本发明公开了一种高耐候陶瓷隔膜管及其制备方法，属于陶瓷隔膜技术领域，(Ba0.7Ca0.3)ZrO3粉末为立方相形式的钙钛矿结构，在低于其居里温度时带有铁电性；后续步骤中先将(Ba0.7Ca0.3)ZrO3粉末与其他原料混合制成混合粉体，再填入模具中制成坯体，在高温烧结过程中生成陶瓷，(Ba0.7Ca0.3)ZrO3粉末中的晶粒发生相变，晶体结构的对称性提高，与SiC粉末、Al2O3粉等原料烧结后晶粒重整；相比普通的氧化铝陶瓷更加致密规整，具有更好的耐腐蚀性能，同时也除去原料(Ba0.7Ca0.3)ZrO3的铁电性，又有较好的阻隔电子的功能，保证陶瓷隔膜管在电解装置中的使用效果。
High-weather-resistance ceramic diaphragm tube and preparation method thereof
The invention discloses a high-weather-resistance ceramic diaphragm tube and a preparation method thereof, and belongs to the technical field of ceramic diaphragms, (Ba0. 7Ca0. 3) ZrO3 powder is of a perovskite structure in a cubic phase form, and has ferroelectricity when the temperature is lower than the Curie temperature; in the subsequent steps, the (Ba0. 7Ca0. 3) ZrO3 powder and other raw materials are mixed to prepare mixed powder, then a mold is filled with the mixed powder to prepare a green body, the ceramic is generated in the high-temperature sintering process, phase change occurs to crystal grains in the (Ba0. 7Ca0. 3) ZrO3 powder, the symmetry of the crystal structure is improved, and the crystal grains are reformed after the (Ba0. 7Ca0. 3) ZrO3 powder and the raw materials such as SiC powder and Al2O3 powder are sintered; compared with common aluminum oxide ceramic, the ceramic diaphragm tube is more compact and regular and has better corrosion resistance, meanwhile, ferroelectricity of the raw material (Ba0. 7Ca0. 3) ZrO3 is removed, a good electron blocking function is achieved, and the using effect of the ceramic diaphragm tube in an electrolysis device is guaranteed.
本发明公开了一种高耐候陶瓷隔膜管及其制备方法，属于陶瓷隔膜技术领域，(Ba0.7Ca0.3)ZrO3粉末为立方相形式的钙钛矿结构，在低于其居里温度时带有铁电性；后续步骤中先将(Ba0.7Ca0.3)ZrO3粉末与其他原料混合制成混合粉体，再填入模具中制成坯体，在高温烧结过程中生成陶瓷，(Ba0.7Ca0.3)ZrO3粉末中的晶粒发生相变，晶体结构的对称性提高，与SiC粉末、Al2O3粉等原料烧结后晶粒重整；相比普通的氧化铝陶瓷更加致密规整，具有更好的耐腐蚀性能，同时也除去原料(Ba0.7Ca0.3)ZrO3的铁电性，又有较好的阻隔电子的功能，保证陶瓷隔膜管在电解装置中的使用效果。
High-weather-resistance ceramic diaphragm tube and preparation method thereof
一种高耐候陶瓷隔膜管及其制备方法
FENG JIANBIN (author) / NIU JUNXIANG (author) / LIU MINGLONG (author)
2022-04-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Self-supporting ceramic diaphragm, and preparation method and application thereof
| European Patent Office | 2020
Ceramic diaphragm as well as preparation method and application thereof
| European Patent Office | 2024
Modified ceramic material, preparation method of battery diaphragm, battery diaphragm and battery
| European Patent Office | 2023
Preparation method of ceramic diaphragm of chip-type high-capacity multilayer ceramic capacitor
| European Patent Office | 2023
High-weather-resistance basalt fiber concrete and preparation method thereof
| European Patent Office | 2023