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Silicon dioxide composite silicon nitride ceramic photocuring slurry, preparation and low-heat-conductivity porous ceramic preparation method
The invention discloses silicon dioxide composite silicon nitride ceramic photocuring slurry, preparation and a preparation method of low-thermal-conductivity porous ceramic. The slurry comprises modified ceramic mixed powder obtained by mixing and ball-milling ceramic powder and a surface modifier, and a premixed solution, the ceramic powder comprises silicon nitride, silicon dioxide, aluminum oxide and yttrium oxide powder; the premixed liquid comprises a mixture A, a photoinitiator and a pore forming agent; the mixture A is a mixed liquid of polyurethane acrylate, epoxy acrylic resin, isobornyl methacrylate, 1, 6-hexanediol diacrylate, tripropylene glycol diacrylate, trimethylolpropane triacrylate, dipentaerythritol hexaacrylate and fluorenyl methyl acrylate; the preparation method of the low-thermal-conductivity porous ceramic by using the silicon dioxide composite silicon nitride ceramic photocuring slurry comprises the processes of printing, degreasing and sintering. The silicon nitride-based composite ceramic slurry has the advantages that the silicon nitride-based composite ceramic slurry is high in photocuring depth, a formed green body is free of degreasing defects, and silicon nitride-based composite ceramic is low in heat conductivity.
二氧化硅复合氮化硅陶瓷光固化浆料、制备及低导热多孔陶瓷制备方法，浆料包括由陶瓷粉体、表面改性剂混合球磨后的改性陶瓷混合粉体以及预混液；陶瓷粉体包括氮化硅、二氧化硅、氧化铝和氧化钇粉末；预混液包括混合物A、光引发剂和造孔剂；混合物A为聚氨酯丙烯酸酯、环氧丙烯酸树脂、甲基丙烯酸异冰片酯、1,6‑己二醇双丙烯酸酯、二缩三丙二醇二丙烯酸酯、三羟甲基丙烷三丙烯酸酯、双季戊四醇六丙烯酸酯和芴基丙烯酸甲酯的混合液体；利用一种二氧化硅复合氮化硅陶瓷光固化浆料的低导热多孔陶瓷制备方法，包括打印、脱脂、烧结工艺；本发明具有氮化硅基复合陶瓷浆料光固化深度高、成形生坯脱脂无缺陷和氮化硅基复合陶瓷热导率低的优点。
Silicon dioxide composite silicon nitride ceramic photocuring slurry, preparation and low-heat-conductivity porous ceramic preparation method
The invention discloses silicon dioxide composite silicon nitride ceramic photocuring slurry, preparation and a preparation method of low-thermal-conductivity porous ceramic. The slurry comprises modified ceramic mixed powder obtained by mixing and ball-milling ceramic powder and a surface modifier, and a premixed solution, the ceramic powder comprises silicon nitride, silicon dioxide, aluminum oxide and yttrium oxide powder; the premixed liquid comprises a mixture A, a photoinitiator and a pore forming agent; the mixture A is a mixed liquid of polyurethane acrylate, epoxy acrylic resin, isobornyl methacrylate, 1, 6-hexanediol diacrylate, tripropylene glycol diacrylate, trimethylolpropane triacrylate, dipentaerythritol hexaacrylate and fluorenyl methyl acrylate; the preparation method of the low-thermal-conductivity porous ceramic by using the silicon dioxide composite silicon nitride ceramic photocuring slurry comprises the processes of printing, degreasing and sintering. The silicon nitride-based composite ceramic slurry has the advantages that the silicon nitride-based composite ceramic slurry is high in photocuring depth, a formed green body is free of degreasing defects, and silicon nitride-based composite ceramic is low in heat conductivity.
二氧化硅复合氮化硅陶瓷光固化浆料、制备及低导热多孔陶瓷制备方法，浆料包括由陶瓷粉体、表面改性剂混合球磨后的改性陶瓷混合粉体以及预混液；陶瓷粉体包括氮化硅、二氧化硅、氧化铝和氧化钇粉末；预混液包括混合物A、光引发剂和造孔剂；混合物A为聚氨酯丙烯酸酯、环氧丙烯酸树脂、甲基丙烯酸异冰片酯、1,6‑己二醇双丙烯酸酯、二缩三丙二醇二丙烯酸酯、三羟甲基丙烷三丙烯酸酯、双季戊四醇六丙烯酸酯和芴基丙烯酸甲酯的混合液体；利用一种二氧化硅复合氮化硅陶瓷光固化浆料的低导热多孔陶瓷制备方法，包括打印、脱脂、烧结工艺；本发明具有氮化硅基复合陶瓷浆料光固化深度高、成形生坯脱脂无缺陷和氮化硅基复合陶瓷热导率低的优点。
Silicon dioxide composite silicon nitride ceramic photocuring slurry, preparation and low-heat-conductivity porous ceramic preparation method
二氧化硅复合氮化硅陶瓷光固化浆料、制备及低导热多孔陶瓷制备方法
BAO CHONGGAO (author) / ZHAO BO (author) / LI SHIJIA (author)
2024-08-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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