Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of uniform infiltration reinforced 3D printing silicon carbide ceramic complex prefabricated part
The invention discloses a preparation method of a uniform infiltration reinforced 3D printing silicon carbide ceramic complex prefabricated part. The prefabricated part can be used for preparing a silicon carbide ceramic material with high density, high strength and high toughness. According to the preparation method, the silicon source is pre-buried, so that the silicon source pre-arranged in the green body in the reaction sintering process can assist external silicon particles to realize integral synergistic permeation of molten silicon in the ceramic green body. The method can shorten the reaction sintering time, improve the sintering efficiency, effectively reduce the content and the distribution scale of residual silicon, improve the mechanical property of a sintered body, solve the problems of insufficient sintering and more internal residual carbon of a large-size component, and also has the advantages of simplicity in operation, easiness in popularization and use and the like.
本发明公开了一种均匀熔渗强化的3D打印碳化硅陶瓷复杂预制件的制备方法，使用该预制件可制得具有高密度、高强度、高韧性的碳化硅陶瓷材料。本发明通过预埋硅源，使得反应烧结过程中坯体中预置的硅源可以辅助外部硅粒实现熔融硅在陶瓷坯体中的整体协同渗透。本发明可以缩短反应烧结时间，提高烧结效率，可有效降低残余硅的含量及分布尺度，提高烧结体的力学性能，解决了大尺寸构件烧结不充分、内部残余碳多的问题，还具有操作简单易于推广使用等优势。
Preparation method of uniform infiltration reinforced 3D printing silicon carbide ceramic complex prefabricated part
The invention discloses a preparation method of a uniform infiltration reinforced 3D printing silicon carbide ceramic complex prefabricated part. The prefabricated part can be used for preparing a silicon carbide ceramic material with high density, high strength and high toughness. According to the preparation method, the silicon source is pre-buried, so that the silicon source pre-arranged in the green body in the reaction sintering process can assist external silicon particles to realize integral synergistic permeation of molten silicon in the ceramic green body. The method can shorten the reaction sintering time, improve the sintering efficiency, effectively reduce the content and the distribution scale of residual silicon, improve the mechanical property of a sintered body, solve the problems of insufficient sintering and more internal residual carbon of a large-size component, and also has the advantages of simplicity in operation, easiness in popularization and use and the like.
本发明公开了一种均匀熔渗强化的3D打印碳化硅陶瓷复杂预制件的制备方法，使用该预制件可制得具有高密度、高强度、高韧性的碳化硅陶瓷材料。本发明通过预埋硅源，使得反应烧结过程中坯体中预置的硅源可以辅助外部硅粒实现熔融硅在陶瓷坯体中的整体协同渗透。本发明可以缩短反应烧结时间，提高烧结效率，可有效降低残余硅的含量及分布尺度，提高烧结体的力学性能，解决了大尺寸构件烧结不充分、内部残余碳多的问题，还具有操作简单易于推广使用等优势。
Preparation method of uniform infiltration reinforced 3D printing silicon carbide ceramic complex prefabricated part
一种均匀熔渗强化的3D打印碳化硅陶瓷复杂预制件的制备方法
05.04.2024
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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