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A platform for research: civil engineering, architecture and urbanism
Method for preparing silicon nitride ceramic substrate through gel tape casting
The invention discloses a gel tape casting method for preparing a silicon nitride ceramic substrate, which comprises the following steps: adding silicon nitride powder, a gel monomer, a cross-linking agent, a dispersing agent, a plasticizer and the like into an alcohol organic solvent, fully mixing, defoaming, adding an initiator, and carrying out tape casting. The innovation of the technical method lies in that sol-gel forming and tape casting process forming are organically combined, the respective advantages of the sol-gel forming and the tape casting process forming are fully played, the biscuit density of the silicon nitride substrate can be obviously improved, subsequent sintering is more compact, the oxygen content is reduced, and the thermal conductivity of the product is improved; rapid curing of a green body can be realized, the tape casting efficiency is improved, and the method is green and environment-friendly.
本发明公开了一种制备氮化硅陶瓷基板的凝胶流延成型方法，该技术方法将氮化硅粉、凝胶单体、交联剂、分散剂和塑性剂等加入到醇类有机溶剂里，经过充分混合后，脱泡，加入引发剂后，进行流延成型。该技术方法创新在于将溶胶凝胶成型和流延工艺成型二者有机结合，充分发挥二者的各自优势，可以将氮化硅基板的素坯密度明显提高，有利于后续烧结更致密，含氧量降低，提高产品导热率；可以实现坯体快速固化，提高流延成型的效率，绿色环保。
Method for preparing silicon nitride ceramic substrate through gel tape casting
The invention discloses a gel tape casting method for preparing a silicon nitride ceramic substrate, which comprises the following steps: adding silicon nitride powder, a gel monomer, a cross-linking agent, a dispersing agent, a plasticizer and the like into an alcohol organic solvent, fully mixing, defoaming, adding an initiator, and carrying out tape casting. The innovation of the technical method lies in that sol-gel forming and tape casting process forming are organically combined, the respective advantages of the sol-gel forming and the tape casting process forming are fully played, the biscuit density of the silicon nitride substrate can be obviously improved, subsequent sintering is more compact, the oxygen content is reduced, and the thermal conductivity of the product is improved; rapid curing of a green body can be realized, the tape casting efficiency is improved, and the method is green and environment-friendly.
本发明公开了一种制备氮化硅陶瓷基板的凝胶流延成型方法，该技术方法将氮化硅粉、凝胶单体、交联剂、分散剂和塑性剂等加入到醇类有机溶剂里，经过充分混合后，脱泡，加入引发剂后，进行流延成型。该技术方法创新在于将溶胶凝胶成型和流延工艺成型二者有机结合，充分发挥二者的各自优势，可以将氮化硅基板的素坯密度明显提高，有利于后续烧结更致密，含氧量降低，提高产品导热率；可以实现坯体快速固化，提高流延成型的效率，绿色环保。
Method for preparing silicon nitride ceramic substrate through gel tape casting
一种凝胶流延成型制备氮化硅陶瓷基板的方法
MA CHENGLIANG (author) / LIU YUAN (author) / GAO ZHENGXIA (author) / ZHAO ZHENWEI (author) / LI XIANG (author) / LIU WEI (author) / TAO MENGYA (author)
2022-07-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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