一种光-热双固化氮化硅陶瓷材料及其制备方法与应用
By employing photo-thermal dual curing technology and silicon nitride powder surface oxidation treatment, the problems of processing damage and interlayer bonding strength in photocured 3D printed silicon nitride ceramic green bodies have been solved, enabling the manufacturing of complex structural ceramic parts with high precision and high yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YANSHAN UNIV
- Filing Date
- 2026-05-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing photopolymer 3D printing silicon nitride ceramic green body processing damage cannot be healed, interlayer bonding strength is low, sintering is prone to cracking, and powder modification process is complex, resulting in low yield of complex structure ceramic parts.
The photo-thermal dual-curing technology is adopted. By introducing a latent crosslinking agent and a thermal latent catalyst, an interpenetrating polymer network is formed that is first photocured and then thermally cured. Combined with the high-temperature oxidation of silicon nitride powder to generate a SiO2 transition layer, the compatibility and refractive index matching between the powder and the resin are improved.
It significantly enhances the healing ability of processing damage and the interlayer bonding strength, reduces sintering cracking, improves the yield and mechanical properties of ceramic parts, and simplifies the powder modification process.
Smart Images
Figure CN122403997A_ABST