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 carbon fiber reinforced silicon carbide composite material. The preparation method comprises the following steps: (1) CVD treatment: carrying out CVDtreatment on carbon fiber yarns, (2) cutting into short fibers: cutting the CVD treated carbon fibers into short fibers, (3) mixing of the short fibers and the silicon carbide slurry: mechanically stirring the short fibers and the silicon carbide slurry uniformly to obtain a mixture, (4) mould pressing and curing: flatly laying the carbon fiber gridding cloth and the mixture in a mould, pressurizing after reaching a designed thickness, and pressing into a biscuit body, and heating the mold to solidify the biscuit body, (5) machining, (6) crystallization treatment: putting the biscuit body intoa high-temperature furnace, and carrying out crystallization treatment, and after the crystallization treatment is finished, obtaining a carbon fiber reinforced silicon carbide composite material product. The preparation method provided by the invention has the characteristics of short preparation period, environment-friendly preparation process, isotropy in product performance, easiness in processing and the like, and is suitable for large-scale production.
一种碳纤维增强碳化硅复合材料的制备方法，包括以下步骤：（1）CVD处理：将碳纤维丝进行CVD处理；（2）切成短纤维：将经CVD处理的碳纤维丝切割成短纤维；（3）短纤维与碳化硅浆料混合：将短纤维与碳化硅浆料进行机械搅拌均匀，得混合料；（4）模压、固化：将碳纤维网格布和混合料平铺在模具中，至设计厚度后，加压，压制成素坯体；再给模具加热，使素坯体固化；（5）机械加工；（6）晶化处理：将素坯体置于高温炉中，进行晶化处理；晶化处理完毕，即得到碳纤维增强碳化硅复合材料产品。本发明提供的制备方法具有制作周期短、制作工艺环保、产品性能趋于各向同性、易于加工等特性，适合于规模化生产。
The invention discloses a preparation method of a carbon fiber reinforced silicon carbide composite material. The preparation method comprises the following steps: (1) CVD treatment: carrying out CVDtreatment on carbon fiber yarns, (2) cutting into short fibers: cutting the CVD treated carbon fibers into short fibers, (3) mixing of the short fibers and the silicon carbide slurry: mechanically stirring the short fibers and the silicon carbide slurry uniformly to obtain a mixture, (4) mould pressing and curing: flatly laying the carbon fiber gridding cloth and the mixture in a mould, pressurizing after reaching a designed thickness, and pressing into a biscuit body, and heating the mold to solidify the biscuit body, (5) machining, (6) crystallization treatment: putting the biscuit body intoa high-temperature furnace, and carrying out crystallization treatment, and after the crystallization treatment is finished, obtaining a carbon fiber reinforced silicon carbide composite material product. The preparation method provided by the invention has the characteristics of short preparation period, environment-friendly preparation process, isotropy in product performance, easiness in processing and the like, and is suitable for large-scale production.
一种碳纤维增强碳化硅复合材料的制备方法，包括以下步骤：（1）CVD处理：将碳纤维丝进行CVD处理；（2）切成短纤维：将经CVD处理的碳纤维丝切割成短纤维；（3）短纤维与碳化硅浆料混合：将短纤维与碳化硅浆料进行机械搅拌均匀，得混合料；（4）模压、固化：将碳纤维网格布和混合料平铺在模具中，至设计厚度后，加压，压制成素坯体；再给模具加热，使素坯体固化；（5）机械加工；（6）晶化处理：将素坯体置于高温炉中，进行晶化处理；晶化处理完毕，即得到碳纤维增强碳化硅复合材料产品。本发明提供的制备方法具有制作周期短、制作工艺环保、产品性能趋于各向同性、易于加工等特性，适合于规模化生产。
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2023
Preparation method of silicon carbide fiber reinforced silicon carbide composite material
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2020