A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation process of high-temperature co-fired ceramic HTCC based on tungsten slurry for screen printing
The invention discloses a high-temperature co-fired ceramic HTCC preparation process based on tungsten slurry for screen printing. Weighing the aluminum nitride powder, the tungsten powder and the organic body according to a certain proportion; the organic body is heated and dissolved in a water bath to prepare an organic system solvent, the organic system solvent, aluminum nitride powder and tungsten powder are mixed and subjected to defoaming treatment, mixed slurry is obtained, and aluminum nitride serves as a bonding carrier in the tungsten slurry; printing a tungsten electrode on an aluminum nitride blank sheet by using the mixed slurry through screen printing; placing the biscuit in a binder removal furnace for binder removal treatment, and carrying out binder removal sintering in a nitrogen atmosphere to remove organic matters in the biscuit so as to obtain a ceramic biscuit without residual carbon; and putting the ceramic biscuit subjected to glue removal into a high-temperature sintering furnace, performing high-temperature sintering in a nitrogen atmosphere, and uniformly shrinking and combining the tungsten slurry and the aluminum nitride in the ceramic biscuit to obtain the eutectic high-temperature co-fired ceramic. The sintered tungsten and aluminum nitride are uniform in shrinkage, consistent in compactness and good in bonding strength.
本发明公开了一种基于丝网印刷用钨浆的高温共烧陶瓷HTCC制备工艺。将氮化铝粉体、钨粉、有机体按一定比例称重配置；将有机体通过水浴加热溶解配置成有机体系溶剂，将有机体系溶剂、氮化铝粉体、钨粉进行混合，经过脱泡处理，得到混合浆料，氮化铝在钨浆中作为粘结载体；将混合浆料通过丝网印刷在氮化铝坯片上印刷钨电极；将素坯置于排胶炉中进行排胶处理，在氮气气氛下排胶烧结，以排除素坯中的有机物，从而获得不含残余碳的陶瓷素坯；将排胶后的陶瓷素坯置于高温烧结炉中，在氮气气氛下进行高温烧制，陶瓷素坯中的钨浆和氮化铝均匀收缩结合，得到共晶化的高温共烧陶瓷。本发明烧结后钨与氮化铝收缩均匀，致密性一致，粘接强度好。
Preparation process of high-temperature co-fired ceramic HTCC based on tungsten slurry for screen printing
The invention discloses a high-temperature co-fired ceramic HTCC preparation process based on tungsten slurry for screen printing. Weighing the aluminum nitride powder, the tungsten powder and the organic body according to a certain proportion; the organic body is heated and dissolved in a water bath to prepare an organic system solvent, the organic system solvent, aluminum nitride powder and tungsten powder are mixed and subjected to defoaming treatment, mixed slurry is obtained, and aluminum nitride serves as a bonding carrier in the tungsten slurry; printing a tungsten electrode on an aluminum nitride blank sheet by using the mixed slurry through screen printing; placing the biscuit in a binder removal furnace for binder removal treatment, and carrying out binder removal sintering in a nitrogen atmosphere to remove organic matters in the biscuit so as to obtain a ceramic biscuit without residual carbon; and putting the ceramic biscuit subjected to glue removal into a high-temperature sintering furnace, performing high-temperature sintering in a nitrogen atmosphere, and uniformly shrinking and combining the tungsten slurry and the aluminum nitride in the ceramic biscuit to obtain the eutectic high-temperature co-fired ceramic. The sintered tungsten and aluminum nitride are uniform in shrinkage, consistent in compactness and good in bonding strength.
本发明公开了一种基于丝网印刷用钨浆的高温共烧陶瓷HTCC制备工艺。将氮化铝粉体、钨粉、有机体按一定比例称重配置；将有机体通过水浴加热溶解配置成有机体系溶剂，将有机体系溶剂、氮化铝粉体、钨粉进行混合，经过脱泡处理，得到混合浆料，氮化铝在钨浆中作为粘结载体；将混合浆料通过丝网印刷在氮化铝坯片上印刷钨电极；将素坯置于排胶炉中进行排胶处理，在氮气气氛下排胶烧结，以排除素坯中的有机物，从而获得不含残余碳的陶瓷素坯；将排胶后的陶瓷素坯置于高温烧结炉中，在氮气气氛下进行高温烧制，陶瓷素坯中的钨浆和氮化铝均匀收缩结合，得到共晶化的高温共烧陶瓷。本发明烧结后钨与氮化铝收缩均匀，致密性一致，粘接强度好。
Preparation process of high-temperature co-fired ceramic HTCC based on tungsten slurry for screen printing
一种基于丝网印刷用钨浆的高温共烧陶瓷HTCC制备工艺
ZHAO YONGPO (author) / LI LIXIA (author) / SUN WEI (author)
2023-01-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
| European Patent Office | 2017
| European Patent Office | 2023
Aluminum nitride ceramic material for HTCC and preparation method thereof
| European Patent Office | 2024
High-temperature co-fired ceramic metallization slurry and preparation method thereof
| European Patent Office | 2024