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High-precision photocurable printing silicon carbide ceramic slurry, preparation method thereof and method for preparing silicon carbide ceramic product
The invention relates to high-precision photo-curable printing silicon carbide ceramic slurry, a preparation method and a method for preparing a silicon carbide ceramic product. SiC-coated SiO2 micro-nano composite powder is prepared by adopting a controllable oxidation coating method, and the SiC-coated SiO2 micro-nano composite powder is mixed with photosensitive resin, carbon source resin, prepolymer resin, a photoinitiator and a dispersing agent to obtain the silicon carbide ceramic slurry. And sintering the printed SiC-coated SiO2 ceramic green body by adopting a two-step sintering method to obtain the silicon carbide ceramic. The minimum precision of the formed silicon carbide green body with the complex structure reaches up to 80 microns, and compared with the minimum precision of a photocuring silicon carbide structure reported in the background technology, the minimum precision is improved to 12.5 times. The two-step sintering method provided by the invention not only eliminates or reduces the introduced SiO2 coating layer, but also ensures that the gaps of the fine and complex silicon carbide structure are not obviously blocked.
本发明涉及一种高精度可光固化打印碳化硅陶瓷浆料及制备方法、制备碳化硅陶瓷制品的方法，采用可控氧化包覆法制备SiC@SiO2微纳复合粉末，将SiC@SiO2微纳复合粉末与光敏树脂、碳源树脂和预聚物树脂和光引发剂和分散剂后得到碳化硅陶瓷浆料。将打印的SiC@SiO2陶瓷坯体采用两步烧结方法，得到碳化硅陶瓷。本发明成型的具有复杂结构的碳化硅坯体最小精度高达80μm，该数值与背景技术报道光固化碳化硅结构最小精度相比，提升至12.5倍。本发明的两步烧结方法，既消除或减少引入的SiO2包覆层，又保证了碳化硅精细复杂结构的间隙不被明显堵塞。
High-precision photocurable printing silicon carbide ceramic slurry, preparation method thereof and method for preparing silicon carbide ceramic product
The invention relates to high-precision photo-curable printing silicon carbide ceramic slurry, a preparation method and a method for preparing a silicon carbide ceramic product. SiC-coated SiO2 micro-nano composite powder is prepared by adopting a controllable oxidation coating method, and the SiC-coated SiO2 micro-nano composite powder is mixed with photosensitive resin, carbon source resin, prepolymer resin, a photoinitiator and a dispersing agent to obtain the silicon carbide ceramic slurry. And sintering the printed SiC-coated SiO2 ceramic green body by adopting a two-step sintering method to obtain the silicon carbide ceramic. The minimum precision of the formed silicon carbide green body with the complex structure reaches up to 80 microns, and compared with the minimum precision of a photocuring silicon carbide structure reported in the background technology, the minimum precision is improved to 12.5 times. The two-step sintering method provided by the invention not only eliminates or reduces the introduced SiO2 coating layer, but also ensures that the gaps of the fine and complex silicon carbide structure are not obviously blocked.
本发明涉及一种高精度可光固化打印碳化硅陶瓷浆料及制备方法、制备碳化硅陶瓷制品的方法，采用可控氧化包覆法制备SiC@SiO2微纳复合粉末，将SiC@SiO2微纳复合粉末与光敏树脂、碳源树脂和预聚物树脂和光引发剂和分散剂后得到碳化硅陶瓷浆料。将打印的SiC@SiO2陶瓷坯体采用两步烧结方法，得到碳化硅陶瓷。本发明成型的具有复杂结构的碳化硅坯体最小精度高达80μm，该数值与背景技术报道光固化碳化硅结构最小精度相比，提升至12.5倍。本发明的两步烧结方法，既消除或减少引入的SiO2包覆层，又保证了碳化硅精细复杂结构的间隙不被明显堵塞。
High-precision photocurable printing silicon carbide ceramic slurry, preparation method thereof and method for preparing silicon carbide ceramic product
高精度可光固化打印碳化硅陶瓷浆料及制备方法、制备碳化硅陶瓷制品的方法
MEI HUI (author) / YANG DOU (author) / CHENG LAIFEI (author) / ZHANG LITONG (author)
2023-12-12
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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