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Carbon fiber reinforced silicon carbide ceramic composite material and direct writing forming method
The invention belongs to the technical field of ceramic materials, and discloses a carbon fiber reinforced silicon carbide ceramic composite material and a direct writing forming method. The direct writing forming method comprises the following steps: mixing carbon fibers and silicon carbide powder to obtain mixed powder, mixing a solvent and an auxiliary agent to obtain a mixed solution, then mixing the mixed powder and the mixed solution, and stirring and defoaming to obtain carbon fiber reinforced ceramic slurry; carrying out printing molding on the carbon fiber reinforced ceramic slurry by adopting a direct writing molding technology to obtain a green body; curing and drying the green body, and removing free water from the green body; and degreasing and sintering the green body without the free water. One-time forming of a product with a complex structure can be achieved through a direct writing forming method, a mold and complex densification treatment do not need to be used, and the preparation cost is low; and the prepared product has no warping and cracking problems, and has good bending strength and fracture toughness.
本发明属于陶瓷材料技术领域，公开了一种碳纤维增强碳化硅陶瓷复合材料及直写成型方法。该直写成型方法包括步骤：将碳纤维和碳化硅粉末混合得到混合粉末，将溶剂和助剂混合得到混合溶液，然后将混合粉末和混合溶液混合，搅拌脱泡，得到碳纤维增强陶瓷浆料；采用直写成型技术对碳纤维增强陶瓷浆料进行打印成型，得到坯体；将坯体进行养护和干燥，除去坯体的自由水；将除去自由水的坯体进行脱脂和烧结即可。本发明通过直写成型方法可实现复杂结构产品的一次成型，无需使用模具和进行复杂的致密化处理，制备成本低；制得的产品没有翘曲和开裂问题，具有良好的弯曲强度和断裂韧性。
Carbon fiber reinforced silicon carbide ceramic composite material and direct writing forming method
The invention belongs to the technical field of ceramic materials, and discloses a carbon fiber reinforced silicon carbide ceramic composite material and a direct writing forming method. The direct writing forming method comprises the following steps: mixing carbon fibers and silicon carbide powder to obtain mixed powder, mixing a solvent and an auxiliary agent to obtain a mixed solution, then mixing the mixed powder and the mixed solution, and stirring and defoaming to obtain carbon fiber reinforced ceramic slurry; carrying out printing molding on the carbon fiber reinforced ceramic slurry by adopting a direct writing molding technology to obtain a green body; curing and drying the green body, and removing free water from the green body; and degreasing and sintering the green body without the free water. One-time forming of a product with a complex structure can be achieved through a direct writing forming method, a mold and complex densification treatment do not need to be used, and the preparation cost is low; and the prepared product has no warping and cracking problems, and has good bending strength and fracture toughness.
本发明属于陶瓷材料技术领域，公开了一种碳纤维增强碳化硅陶瓷复合材料及直写成型方法。该直写成型方法包括步骤：将碳纤维和碳化硅粉末混合得到混合粉末，将溶剂和助剂混合得到混合溶液，然后将混合粉末和混合溶液混合，搅拌脱泡，得到碳纤维增强陶瓷浆料；采用直写成型技术对碳纤维增强陶瓷浆料进行打印成型，得到坯体；将坯体进行养护和干燥，除去坯体的自由水；将除去自由水的坯体进行脱脂和烧结即可。本发明通过直写成型方法可实现复杂结构产品的一次成型，无需使用模具和进行复杂的致密化处理，制备成本低；制得的产品没有翘曲和开裂问题，具有良好的弯曲强度和断裂韧性。
Carbon fiber reinforced silicon carbide ceramic composite material and direct writing forming method
一种碳纤维增强碳化硅陶瓷复合材料及直写成型方法
XU GUODONG (author) / CHEN LIANG (author) / ZENG TAO (author) / WANG XIAOHONG (author)
2024-05-14
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
Silicon carbide fiber reinforced carbon-ceramic composite material and preparation method thereof
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