Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Continuous carbon fiber strengthening and toughening ultrahigh-temperature ceramic-based composite material and preparation method thereof
The invention discloses a preparation method of a continuous carbon fiber reinforced ultra-high-temperature ceramic matrix composite material. The preparation method comprises the following steps: S1, preparing slurry: weighing raw materials including silicon-boron-oxygen-nitrogen powder, a carbon source and zirconium diboride according to a proportion, and then carrying out ball milling in deionized water for 3-4 hours; then adding triton, polyethylene glycol and methyl cellulose, and carrying out ball milling for 3-4 hours to obtain slurry; s2, dipping continuous carbon fibers in the slurry obtained in the step S1, and then performing winding, spreading and natural drying to obtain a fiber layer sheet; and S3, the dried fiber layer pieces are cut, the cut fiber layer pieces are stacked and then placed into a graphite mold, reaction hot pressing sintering is conducted in a vacuum hot pressing furnace, the continuous carbon fiber reinforced ultra-high-temperature ceramic matrix composite is obtained, and during stacking, the included angle of carbon fibers of every two adjacent fiber layer pieces ranges from 0 degree to 90 degrees. The preparation method is short in production period and low in energy consumption, and the prepared composite material is high in density, low in open porosity and good in mechanical property.
本发明公开了一种连续碳纤维增强超高温陶瓷基复合材料的制备方法，包括：S1，制备浆料：将原料硅硼氧氮粉、碳源、二硼化锆按比例称量后在去离子水中球磨3～4小时；然后加入曲拉通、聚乙二醇和甲基纤维素，再球磨3～4小时，得到浆料；S2，将连续碳纤维浸渍通过步骤S1得到的浆料后通过缠绕、铺展、自然干燥后得到纤维层片；S3，将干燥后的纤维层片进行裁剪，将裁剪后的纤维层片层叠后放入石墨模具中，在真空热压炉中进行反应热压烧结，获得连续碳纤维增强超高温陶瓷基复合材料，其中进行层叠时，相邻两层纤维层片的碳纤维夹角为0°～90°。本发明生产周期短、能耗小、制备的复合材料致密度高、开气孔率低、机械性能好。
Continuous carbon fiber strengthening and toughening ultrahigh-temperature ceramic-based composite material and preparation method thereof
The invention discloses a preparation method of a continuous carbon fiber reinforced ultra-high-temperature ceramic matrix composite material. The preparation method comprises the following steps: S1, preparing slurry: weighing raw materials including silicon-boron-oxygen-nitrogen powder, a carbon source and zirconium diboride according to a proportion, and then carrying out ball milling in deionized water for 3-4 hours; then adding triton, polyethylene glycol and methyl cellulose, and carrying out ball milling for 3-4 hours to obtain slurry; s2, dipping continuous carbon fibers in the slurry obtained in the step S1, and then performing winding, spreading and natural drying to obtain a fiber layer sheet; and S3, the dried fiber layer pieces are cut, the cut fiber layer pieces are stacked and then placed into a graphite mold, reaction hot pressing sintering is conducted in a vacuum hot pressing furnace, the continuous carbon fiber reinforced ultra-high-temperature ceramic matrix composite is obtained, and during stacking, the included angle of carbon fibers of every two adjacent fiber layer pieces ranges from 0 degree to 90 degrees. The preparation method is short in production period and low in energy consumption, and the prepared composite material is high in density, low in open porosity and good in mechanical property.
本发明公开了一种连续碳纤维增强超高温陶瓷基复合材料的制备方法，包括：S1，制备浆料：将原料硅硼氧氮粉、碳源、二硼化锆按比例称量后在去离子水中球磨3～4小时；然后加入曲拉通、聚乙二醇和甲基纤维素，再球磨3～4小时，得到浆料；S2，将连续碳纤维浸渍通过步骤S1得到的浆料后通过缠绕、铺展、自然干燥后得到纤维层片；S3，将干燥后的纤维层片进行裁剪，将裁剪后的纤维层片层叠后放入石墨模具中，在真空热压炉中进行反应热压烧结，获得连续碳纤维增强超高温陶瓷基复合材料，其中进行层叠时，相邻两层纤维层片的碳纤维夹角为0°～90°。本发明生产周期短、能耗小、制备的复合材料致密度高、开气孔率低、机械性能好。
Continuous carbon fiber strengthening and toughening ultrahigh-temperature ceramic-based composite material and preparation method thereof
连续碳纤维强韧化超高温陶瓷基复合材料及其制备方法
WU YUN (Autor:in) / LI ZHUOLIN (Autor:in) / SUN ZHIYUAN (Autor:in) / SUI HAO (Autor:in) / WEN GUANGWU (Autor:in) / WEI CHUNCHENG (Autor:in) / WANG PENG (Autor:in) / GENG XIN (Autor:in) / LI DAOQIAN (Autor:in)
18.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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