Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a preparation method of a fiber-toughened ceramic-based composite material. The method comprises the following steps: S1, preparing a carbon fiber toughened polymer; carbon fibers, resin, a curing agent and a lubricating agent are used as raw materials, the raw materials are placed in an extruder to be granulated after being evenly stirred, then the granulated raw materialsare placed in an injection molding machine, and thenare injected into a mold under the pressure of 80-100 Mpa, demolding is conducted after curing, heat treatment is conducted for 2-10 h at the temperature of 250-300 DEG C, and a CFRP part is obtained after cooling; S2, preparing a carbon fiber toughened carbon-based porous body: performing high-temperature carbonization treatment on the CFRP part obtained in the step S1 to obtain a carbon fiber toughened carbon-based porous body; and S3, preparing a SiC ceramic matrix: carrying out high-temperature infiltration treatment on the carbon fibertoughened carbon-based porous body obtained in the step S2 to obtain the fiber toughened ceramic-based composite material. Compared with the prior art, the preparation method is high in efficiency andlow in cost, is not limited by geometric dimensions, is particularly suitable for production of small parts, can realize near-dimension forming and manufacturing of special-shaped parts according toactual requirements, and is suitable for large-batch industrial production.
本发明公开了一种纤维增韧陶瓷基复合材料的制备方法，包括以下步骤：S1.碳纤维增韧聚合物的制备：以碳纤维与树脂、固化剂和润滑剂为原料，将原料搅拌均匀后置于挤出机中造粒，再置于注塑机中，在80~100 Mpa的压力下注入模具，固化后脱模，在250~300℃下热处理2~10h，冷却后得CFRP零件；S2.碳纤维增韧炭基多孔体的制备：将步骤S1所得CFRP零件进行高温碳化处理，得碳纤维增韧炭基多孔体；S3.SiC陶瓷基体的制备：将步骤S2所得碳纤维增韧炭基多孔体进行高温融渗处理，得纤维增韧陶瓷基复合材料。相对现有技术，本发明技术方案高效率，低成本，且不受几何尺寸限制，尤其适用于小零部件生产，能根据实际需求实现近尺寸成形制造异形件，适合大批量工业化生产。
The invention discloses a preparation method of a fiber-toughened ceramic-based composite material. The method comprises the following steps: S1, preparing a carbon fiber toughened polymer; carbon fibers, resin, a curing agent and a lubricating agent are used as raw materials, the raw materials are placed in an extruder to be granulated after being evenly stirred, then the granulated raw materialsare placed in an injection molding machine, and thenare injected into a mold under the pressure of 80-100 Mpa, demolding is conducted after curing, heat treatment is conducted for 2-10 h at the temperature of 250-300 DEG C, and a CFRP part is obtained after cooling; S2, preparing a carbon fiber toughened carbon-based porous body: performing high-temperature carbonization treatment on the CFRP part obtained in the step S1 to obtain a carbon fiber toughened carbon-based porous body; and S3, preparing a SiC ceramic matrix: carrying out high-temperature infiltration treatment on the carbon fibertoughened carbon-based porous body obtained in the step S2 to obtain the fiber toughened ceramic-based composite material. Compared with the prior art, the preparation method is high in efficiency andlow in cost, is not limited by geometric dimensions, is particularly suitable for production of small parts, can realize near-dimension forming and manufacturing of special-shaped parts according toactual requirements, and is suitable for large-batch industrial production.
本发明公开了一种纤维增韧陶瓷基复合材料的制备方法，包括以下步骤：S1.碳纤维增韧聚合物的制备：以碳纤维与树脂、固化剂和润滑剂为原料，将原料搅拌均匀后置于挤出机中造粒，再置于注塑机中，在80~100 Mpa的压力下注入模具，固化后脱模，在250~300℃下热处理2~10h，冷却后得CFRP零件；S2.碳纤维增韧炭基多孔体的制备：将步骤S1所得CFRP零件进行高温碳化处理，得碳纤维增韧炭基多孔体；S3.SiC陶瓷基体的制备：将步骤S2所得碳纤维增韧炭基多孔体进行高温融渗处理，得纤维增韧陶瓷基复合材料。相对现有技术，本发明技术方案高效率，低成本，且不受几何尺寸限制，尤其适用于小零部件生产，能根据实际需求实现近尺寸成形制造异形件，适合大批量工业化生产。
Preparation method of fiber-toughened ceramic-based composite material
一种纤维增韧陶瓷基复合材料的制备方法
05.06.2020
Patent
Elektronische Ressource
Chinesisch
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