Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing silicon carbide ceramic through waste 3D printing and silicon carbide ceramic
The invention discloses a method for preparing silicon carbide ceramic through waste 3D printing and the silicon carbide ceramic. The method comprises the steps that wood waste is carbonized and smashed in sequence, and then wood carbon powder is obtained; the wood carbon powder is mixed with a binder, and a wood carbon green body is obtained through 3D printing forming; dissolving a carbon-containing waste material in an organic solvent to obtain a carbon-containing solution, and immersing the wood carbon green body into the carbon-containing solution for solution dipping pyrolysis to obtain a wood carbon preform; evaporating silicon in the silicon-containing waste material through heating to obtain gas-phase silicon, and sintering the wood carbon preform in the gas-phase silicon to obtain the silicon carbide ceramic. According to the method, wood waste, carbon-containing waste and silicon-containing waste are efficiently and comprehensively utilized, silicon carbide is prepared through gas-phase reaction sintering of the silicon-containing waste, and therefore the technical problems that at present, cost is high, impurity pollution is caused, and silicon carbide ceramic of a complex structure cannot be prepared are solved.
本发明公开了一种废料3D打印制备碳化硅陶瓷的方法及碳化硅陶瓷。所述方法包括：将木质废料依次经过碳化、粉碎后得到木质碳粉；将所述木质碳粉与粘结剂混合，通过3D打印成形得到木质碳坯体；将含碳废料溶于有机溶剂中得到含碳溶液，将所述木质碳坯体浸入所述含碳溶液中进行溶液浸渍热解得到木质碳预制体；通过加热使含硅废料中硅蒸发得到气相硅，将所述木质碳预制体在气相硅中进行烧结得到碳化硅陶瓷。本发明对木质废料、含碳废料及含硅废料的高效综合利用，通过含硅废料气相反应烧结制备获得碳化硅，由此解决目前高成本、杂质污染、无法制备复杂结构的碳化硅陶瓷等的技术问题。
Method for preparing silicon carbide ceramic through waste 3D printing and silicon carbide ceramic
The invention discloses a method for preparing silicon carbide ceramic through waste 3D printing and the silicon carbide ceramic. The method comprises the steps that wood waste is carbonized and smashed in sequence, and then wood carbon powder is obtained; the wood carbon powder is mixed with a binder, and a wood carbon green body is obtained through 3D printing forming; dissolving a carbon-containing waste material in an organic solvent to obtain a carbon-containing solution, and immersing the wood carbon green body into the carbon-containing solution for solution dipping pyrolysis to obtain a wood carbon preform; evaporating silicon in the silicon-containing waste material through heating to obtain gas-phase silicon, and sintering the wood carbon preform in the gas-phase silicon to obtain the silicon carbide ceramic. According to the method, wood waste, carbon-containing waste and silicon-containing waste are efficiently and comprehensively utilized, silicon carbide is prepared through gas-phase reaction sintering of the silicon-containing waste, and therefore the technical problems that at present, cost is high, impurity pollution is caused, and silicon carbide ceramic of a complex structure cannot be prepared are solved.
本发明公开了一种废料3D打印制备碳化硅陶瓷的方法及碳化硅陶瓷。所述方法包括：将木质废料依次经过碳化、粉碎后得到木质碳粉；将所述木质碳粉与粘结剂混合，通过3D打印成形得到木质碳坯体；将含碳废料溶于有机溶剂中得到含碳溶液，将所述木质碳坯体浸入所述含碳溶液中进行溶液浸渍热解得到木质碳预制体；通过加热使含硅废料中硅蒸发得到气相硅，将所述木质碳预制体在气相硅中进行烧结得到碳化硅陶瓷。本发明对木质废料、含碳废料及含硅废料的高效综合利用，通过含硅废料气相反应烧结制备获得碳化硅，由此解决目前高成本、杂质污染、无法制备复杂结构的碳化硅陶瓷等的技术问题。
Method for preparing silicon carbide ceramic through waste 3D printing and silicon carbide ceramic
一种废料3D打印制备碳化硅陶瓷的方法及碳化硅陶瓷
YAN CHUNZE (Autor:in) / WANG CHANGSHUN (Autor:in) / CHEN ANNAN (Autor:in) / SHI YUSHENG (Autor:in) / WU SIQI (Autor:in) / NIE XIANG (Autor:in) / LIU GUIZHOU (Autor:in) / OUYANG ZHEN (Autor:in)
26.04.2022
Patent
Elektronische Ressource
Chinesisch
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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