Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon carbide ceramic-based composite material containing interface phase as well as preparation method and application of silicon carbide ceramic-based composite material
The invention discloses a silicon carbide ceramic-based composite material containing an interface phase as well as a preparation method and application thereof, and relates to the technical field of composite materials. The method comprises the following steps: preparing an interface phase on a reinforcement material by adopting a chemical vapor infiltration method to obtain a reinforcement material containing the interface phase; the preparation method comprises the following steps: carrying out dry ball-milling mixing on grain-graded silicon carbide powder, a reinforcement material containing an interface phase, an adhesive and a carbon source to obtain composite powder; the composite powder is subjected to laser 3D printing forming, and a green body is obtained; and degreasing and carbonizing the green body, and sintering at 1420-1800 DEG C for 0.5-3 hours to obtain the silicon carbide ceramic-based composite material containing the interface phase. On the basis of the laser 3D printing technology, erosion of liquid silicon to a reinforcement material in reactive sintering is reduced, the reinforcement material is promoted to give full play to the strengthening and toughening effect, and the obtained silicon carbide ceramic-based composite material is excellent in mechanical property, capable of achieving near-net-size forming and suitable for batch production.
本发明公开了一种包含界面相的碳化硅陶瓷基复合材料及其制备方法和应用，涉及复合材料技术领域。该方法包括在增强体材料上采用化学气相渗透法制备界面相，获取含界面相的增强体材料；将颗粒级配的碳化硅粉、含界面相的增强体材料、粘接剂和碳源进行干法球磨混合，得到复合粉体；将复合粉体进行激光3D打印成形，得到坯体；将所述坯体进行脱脂碳化，随后于1420~1800℃烧结0.5~3h，得到包含界面相的碳化硅陶瓷基复合材料。本发明基于激光3D打印技术有利于减少反应烧结中液硅对增强体材料的侵蚀，促进其充分发挥强韧化作用，所得碳化硅陶瓷基复合材料力学性能优良，可实现近净尺寸成形，适合批量化生产。
Silicon carbide ceramic-based composite material containing interface phase as well as preparation method and application of silicon carbide ceramic-based composite material
The invention discloses a silicon carbide ceramic-based composite material containing an interface phase as well as a preparation method and application thereof, and relates to the technical field of composite materials. The method comprises the following steps: preparing an interface phase on a reinforcement material by adopting a chemical vapor infiltration method to obtain a reinforcement material containing the interface phase; the preparation method comprises the following steps: carrying out dry ball-milling mixing on grain-graded silicon carbide powder, a reinforcement material containing an interface phase, an adhesive and a carbon source to obtain composite powder; the composite powder is subjected to laser 3D printing forming, and a green body is obtained; and degreasing and carbonizing the green body, and sintering at 1420-1800 DEG C for 0.5-3 hours to obtain the silicon carbide ceramic-based composite material containing the interface phase. On the basis of the laser 3D printing technology, erosion of liquid silicon to a reinforcement material in reactive sintering is reduced, the reinforcement material is promoted to give full play to the strengthening and toughening effect, and the obtained silicon carbide ceramic-based composite material is excellent in mechanical property, capable of achieving near-net-size forming and suitable for batch production.
本发明公开了一种包含界面相的碳化硅陶瓷基复合材料及其制备方法和应用，涉及复合材料技术领域。该方法包括在增强体材料上采用化学气相渗透法制备界面相，获取含界面相的增强体材料；将颗粒级配的碳化硅粉、含界面相的增强体材料、粘接剂和碳源进行干法球磨混合，得到复合粉体；将复合粉体进行激光3D打印成形，得到坯体；将所述坯体进行脱脂碳化，随后于1420~1800℃烧结0.5~3h，得到包含界面相的碳化硅陶瓷基复合材料。本发明基于激光3D打印技术有利于减少反应烧结中液硅对增强体材料的侵蚀，促进其充分发挥强韧化作用，所得碳化硅陶瓷基复合材料力学性能优良，可实现近净尺寸成形，适合批量化生产。
Silicon carbide ceramic-based composite material containing interface phase as well as preparation method and application of silicon carbide ceramic-based composite material
一种包含界面相的碳化硅陶瓷基复合材料及其制备方法和应用
MEI HUI (Autor:in) / LIANG CHENGYU (Autor:in) / QIAO LEI (Autor:in) / WU JIE (Autor:in) / CHENG LAIFEI (Autor:in) / ZHANG LITONG (Autor:in)
28.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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