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Silicon carbide composite powder for laser 3D printing and preparation method thereof
The invention discloses silicon carbide composite powder for laser 3D printing and a preparation method of the silicon carbide composite powder, the silicon carbide composite powder is composed of 55-75 wt% of silicon carbide particles, 10-25 wt% of interface modified short carbon fibers and 15-20 wt% of phenolic resin; wherein the particle size of silicon carbide is 0.1-100 [mu] m, the diameter of the interface modified short carbon fiber is 4-10 [mu] m, and the length-diameter ratio is 5-12; the interface modified short carbon fiber interface layer is a pyrolytic carbon/silicon carbide composite interface, and the phenolic resin is thermosetting. The prepared silicon carbide composite powder for laser 3D printing has the advantages of being high in additive adaptability, good in dispersion uniformity and low in specific gravity, and is suitable for additive manufacturing forming of light high-strength silicon carbide components.
本发明公开了一种激光3D打印用碳化硅复合粉体及其制备方法，由碳化硅颗粒、界面改性短切碳纤维及酚醛树脂构成，其中碳化硅颗粒占55～75wt％，界面改性短切碳纤维占10～25wt％，酚醛树脂占15～20wt％；其中，碳化硅粒径为0.1～100μm，界面改性短切碳纤维直径为4～10μm，长径比为5～12；所述界面改性短切碳纤维界面层为热解碳/碳化硅复合界面，所述酚醛树脂为热固型。本发明制备的激光3D打印用碳化硅复合粉体具有增材适应性高、分散均匀性好、比重低的优点，适用于轻质高强碳化硅构件的增材制造成形。
Silicon carbide composite powder for laser 3D printing and preparation method thereof
The invention discloses silicon carbide composite powder for laser 3D printing and a preparation method of the silicon carbide composite powder, the silicon carbide composite powder is composed of 55-75 wt% of silicon carbide particles, 10-25 wt% of interface modified short carbon fibers and 15-20 wt% of phenolic resin; wherein the particle size of silicon carbide is 0.1-100 [mu] m, the diameter of the interface modified short carbon fiber is 4-10 [mu] m, and the length-diameter ratio is 5-12; the interface modified short carbon fiber interface layer is a pyrolytic carbon/silicon carbide composite interface, and the phenolic resin is thermosetting. The prepared silicon carbide composite powder for laser 3D printing has the advantages of being high in additive adaptability, good in dispersion uniformity and low in specific gravity, and is suitable for additive manufacturing forming of light high-strength silicon carbide components.
本发明公开了一种激光3D打印用碳化硅复合粉体及其制备方法，由碳化硅颗粒、界面改性短切碳纤维及酚醛树脂构成，其中碳化硅颗粒占55～75wt％，界面改性短切碳纤维占10～25wt％，酚醛树脂占15～20wt％；其中，碳化硅粒径为0.1～100μm，界面改性短切碳纤维直径为4～10μm，长径比为5～12；所述界面改性短切碳纤维界面层为热解碳/碳化硅复合界面，所述酚醛树脂为热固型。本发明制备的激光3D打印用碳化硅复合粉体具有增材适应性高、分散均匀性好、比重低的优点，适用于轻质高强碳化硅构件的增材制造成形。
Silicon carbide composite powder for laser 3D printing and preparation method thereof
一种激光3D打印用碳化硅复合粉体及其制备方法
CHEN ZHAOFENG (author) / LIU TIANLONG (author) / YANG LIXIA (author)
2022-04-29
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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