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A platform for research: civil engineering, architecture and urbanism
Carbon/carbon composite material, preparation method and application thereof and carbon/carbon heater
The invention relates to a carbon/carbon composite material, a preparation method and application thereof and a carbon/carbon heater, and the preparation method comprises the following steps: (1) alternately laminating and needling carbon fiber cloth and carbon fiber net tires to obtain a prefabricated body; (2) carrying out chemical vapor infiltration treatment on the prefabricated body in carbonsource gas to obtain a carbon/carbon green body; (3) putting the carbon/carbon green body into a tungsten source solution for dipping, baking to remove the solvent, and then carrying out carbon thermal reduction reaction and chemical vapor infiltration treatment in carbon source gas to obtain a carbon/carbon green body containing tungsten carbide; repeating step (3) for n times, wherein n is an integer greater than or equal to 0; and (4) carrying out graphitization treatment on the carbon/carbon green body containing tungsten carbide. Compared with a traditional carbon/carbon composite material into which tungsten carbide is not introduced, the preparation method has the advantages that the resistivity of the carbon/carbon composite material is reduced, and the stability, particularly thecorrosion resistance, of the carbon/carbon composite material is improved.
本发明涉及一种碳/碳复合材料及其制备方法、应用和碳/碳加热器，包括如下步骤：(1)将碳纤维布和碳纤维网胎交替叠层针刺，得到预制体；(2)将所述预制体于碳源气体中进行化学气相渗入处理，得到碳/碳坯体；(3)将所述碳/碳坯体置于钨源溶液中浸渍，烘烤除去溶剂，再于碳源气体中进行碳热还原反应及化学气相渗入处理，得到含碳化钨的碳/碳坯体；步骤(3)重复n次，n为大于或等于0的整数；(4)将所述含碳化钨的碳/碳坯体进行石墨化处理。该制备方法，相比于传统的未引入碳化钨的碳/碳复合材料，不但降低了碳/碳复合材料的电阻率，且提高了碳/碳复合材料的稳定性，特别是耐腐蚀性能。
Carbon/carbon composite material, preparation method and application thereof and carbon/carbon heater
The invention relates to a carbon/carbon composite material, a preparation method and application thereof and a carbon/carbon heater, and the preparation method comprises the following steps: (1) alternately laminating and needling carbon fiber cloth and carbon fiber net tires to obtain a prefabricated body; (2) carrying out chemical vapor infiltration treatment on the prefabricated body in carbonsource gas to obtain a carbon/carbon green body; (3) putting the carbon/carbon green body into a tungsten source solution for dipping, baking to remove the solvent, and then carrying out carbon thermal reduction reaction and chemical vapor infiltration treatment in carbon source gas to obtain a carbon/carbon green body containing tungsten carbide; repeating step (3) for n times, wherein n is an integer greater than or equal to 0; and (4) carrying out graphitization treatment on the carbon/carbon green body containing tungsten carbide. Compared with a traditional carbon/carbon composite material into which tungsten carbide is not introduced, the preparation method has the advantages that the resistivity of the carbon/carbon composite material is reduced, and the stability, particularly thecorrosion resistance, of the carbon/carbon composite material is improved.
本发明涉及一种碳/碳复合材料及其制备方法、应用和碳/碳加热器，包括如下步骤：(1)将碳纤维布和碳纤维网胎交替叠层针刺，得到预制体；(2)将所述预制体于碳源气体中进行化学气相渗入处理，得到碳/碳坯体；(3)将所述碳/碳坯体置于钨源溶液中浸渍，烘烤除去溶剂，再于碳源气体中进行碳热还原反应及化学气相渗入处理，得到含碳化钨的碳/碳坯体；步骤(3)重复n次，n为大于或等于0的整数；(4)将所述含碳化钨的碳/碳坯体进行石墨化处理。该制备方法，相比于传统的未引入碳化钨的碳/碳复合材料，不但降低了碳/碳复合材料的电阻率，且提高了碳/碳复合材料的稳定性，特别是耐腐蚀性能。
Carbon/carbon composite material, preparation method and application thereof and carbon/carbon heater
碳/碳复合材料及其制备方法、应用和碳/碳加热器
LIAO JIQIAO (author) / LI JUN (author) / DENG HUAFENG (author) / LI BINGJU (author) / SHI LEI (author) / GONG ZHI (author) / LIU XUEWEN (author) / WANG YUEJUN (author)
2021-01-19
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
| European Patent Office | 2024
| European Patent Office | 2024
Carbon/carbon composite material and preparation method and application thereof
| European Patent Office | 2024
Carbon-carbon composite material and preparation method thereof
| European Patent Office | 2023