Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon carbide ceramic slurry for direct-writing forming 3D printing and application of silicon carbide ceramic slurry
The invention belongs to the technical field of ceramic additive manufacturing, and relates to silicon carbide ceramic slurry for direct writing forming 3D printing and application of the silicon carbide ceramic slurry. The silicon carbide ceramic slurry comprises the following components: liquid polycarbosilane containing unsaturated groups, a free radical initiator and a silicon carbide filler. The application of the silicon carbide ceramic slurry comprises the steps that the silicon carbide ceramic slurry is formed into a ceramic component green body through direct writing, and then the ceramic component green body is converted into a SiC ceramic component or a fiber-reinforced SiC ceramic component through heat treatment. The content of the solvent in the direct-writing forming slurry can be reduced, and even the existence of the solvent in the direct-writing forming slurry is avoided, so that the porosity and the pyrolysis shrinkage rate in the converted SiC ceramic component are reduced. The liquid polycarbosilane is matched with the free radical initiator for use, and the temperature of a heating stage is adjusted, so that the silicon carbide ceramic slurry can be quickly cured and formed, and a binder and an independent cross-linking curing process are not needed.
本发明属于陶瓷增材制造技术领域，涉及一种直写成型3D打印用碳化硅陶瓷浆料及其应用。所述碳化硅陶瓷浆料，包括以下组分：含不饱和基团的液态聚碳硅烷、自由基引发剂和碳化硅填料。所述碳化硅陶瓷浆料的应用，包括将碳化硅陶瓷浆料通过直写成型为陶瓷构件生坯，再经热处理转化为SiC陶瓷构件或纤维增强的SiC陶瓷构件。本发明可减少溶剂在直写成型浆料中的含量，甚至避免溶剂在直写成型浆料中的存在，从而降低转化SiC陶瓷构件中的孔隙率和热解收缩率。液态聚碳硅烷配合自由基引发剂使用，结合热台温度调节，可实现碳化硅陶瓷浆料快速固化成型，无需粘结剂以及单独的交联固化过程。
Silicon carbide ceramic slurry for direct-writing forming 3D printing and application of silicon carbide ceramic slurry
The invention belongs to the technical field of ceramic additive manufacturing, and relates to silicon carbide ceramic slurry for direct writing forming 3D printing and application of the silicon carbide ceramic slurry. The silicon carbide ceramic slurry comprises the following components: liquid polycarbosilane containing unsaturated groups, a free radical initiator and a silicon carbide filler. The application of the silicon carbide ceramic slurry comprises the steps that the silicon carbide ceramic slurry is formed into a ceramic component green body through direct writing, and then the ceramic component green body is converted into a SiC ceramic component or a fiber-reinforced SiC ceramic component through heat treatment. The content of the solvent in the direct-writing forming slurry can be reduced, and even the existence of the solvent in the direct-writing forming slurry is avoided, so that the porosity and the pyrolysis shrinkage rate in the converted SiC ceramic component are reduced. The liquid polycarbosilane is matched with the free radical initiator for use, and the temperature of a heating stage is adjusted, so that the silicon carbide ceramic slurry can be quickly cured and formed, and a binder and an independent cross-linking curing process are not needed.
本发明属于陶瓷增材制造技术领域，涉及一种直写成型3D打印用碳化硅陶瓷浆料及其应用。所述碳化硅陶瓷浆料，包括以下组分：含不饱和基团的液态聚碳硅烷、自由基引发剂和碳化硅填料。所述碳化硅陶瓷浆料的应用，包括将碳化硅陶瓷浆料通过直写成型为陶瓷构件生坯，再经热处理转化为SiC陶瓷构件或纤维增强的SiC陶瓷构件。本发明可减少溶剂在直写成型浆料中的含量，甚至避免溶剂在直写成型浆料中的存在，从而降低转化SiC陶瓷构件中的孔隙率和热解收缩率。液态聚碳硅烷配合自由基引发剂使用，结合热台温度调节，可实现碳化硅陶瓷浆料快速固化成型，无需粘结剂以及单独的交联固化过程。
Silicon carbide ceramic slurry for direct-writing forming 3D printing and application of silicon carbide ceramic slurry
一种直写成型3D打印用碳化硅陶瓷浆料及其应用
DENG YANYAN (Autor:in) / PEI XUELIANG (Autor:in) / HUANG QING (Autor:in) / ZHUO WANFENG (Autor:in)
30.08.2024
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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