Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of carbon-carbon-copper composite material with good heat dissipation and wear resistance
The invention discloses a preparation method of a carbon-carbon-copper composite material with good heat dissipation and wear resistance, and the preparation method comprises the following steps: carrying out loading treatment of graphene oxide on the surface of foamy copper to obtain pretreated foamy copper; filling pores of the pretreated foamy copper with carbon fibers to obtain a foamy copper-carbon-carbon preform; cracking and carbonizing the foamy copper-carbon-carbon preform by adopting an isothermal chemical vapor infiltration process to obtain a carbon-carbon-copper composite material precursor; and the carbon-carbon-copper composite material precursor is graphitized, and the carbon-carbon-copper composite material with good heat dissipation and wear resistance is prepared after graphitization is finished. The prepared carbon-carbon-copper composite material has excellent mechanical property, heat-conducting property and wear resistance, the heat conductivity in the axial direction of fibers is larger than or equal to 100 W (m.k <-1 >), the heat conductivity in the vertical axial direction of the fibers is larger than or equal to 300 W (m.k <-1 >), and the wear resistance of the carbon-carbon-copper composite material is about 1.5 times that of the carbon-carbon composite material.
本发明公开具有良好散热和耐磨性的碳碳‑铜复合材料的制备方法，包括如下步骤：在泡沫铜的表面进行氧化石墨烯的负载处理，得到预处理泡沫铜；向预处理泡沫铜的孔隙中填充碳纤维，得到泡沫铜‑碳碳预制体；采用等温化学气相渗透工艺对泡沫铜‑碳碳预制体进行裂解碳化，得到碳碳‑铜复合材料前驱体；将碳碳‑铜复合材料前驱体进行石墨化，石墨化结束后即制备得到具有良好散热和耐磨性的碳碳‑铜复合材料。本发明所制备的碳碳‑铜复合材料具有极佳的力学性能、导热性能和耐磨性能，其纤维轴向的热导率≥100W(m·k‑1)，垂直纤维轴向的热导率≥300W(m·k‑1)，其耐磨性约为碳碳复合材料1.5倍。
Preparation method of carbon-carbon-copper composite material with good heat dissipation and wear resistance
The invention discloses a preparation method of a carbon-carbon-copper composite material with good heat dissipation and wear resistance, and the preparation method comprises the following steps: carrying out loading treatment of graphene oxide on the surface of foamy copper to obtain pretreated foamy copper; filling pores of the pretreated foamy copper with carbon fibers to obtain a foamy copper-carbon-carbon preform; cracking and carbonizing the foamy copper-carbon-carbon preform by adopting an isothermal chemical vapor infiltration process to obtain a carbon-carbon-copper composite material precursor; and the carbon-carbon-copper composite material precursor is graphitized, and the carbon-carbon-copper composite material with good heat dissipation and wear resistance is prepared after graphitization is finished. The prepared carbon-carbon-copper composite material has excellent mechanical property, heat-conducting property and wear resistance, the heat conductivity in the axial direction of fibers is larger than or equal to 100 W (m.k <-1 >), the heat conductivity in the vertical axial direction of the fibers is larger than or equal to 300 W (m.k <-1 >), and the wear resistance of the carbon-carbon-copper composite material is about 1.5 times that of the carbon-carbon composite material.
本发明公开具有良好散热和耐磨性的碳碳‑铜复合材料的制备方法，包括如下步骤：在泡沫铜的表面进行氧化石墨烯的负载处理，得到预处理泡沫铜；向预处理泡沫铜的孔隙中填充碳纤维，得到泡沫铜‑碳碳预制体；采用等温化学气相渗透工艺对泡沫铜‑碳碳预制体进行裂解碳化，得到碳碳‑铜复合材料前驱体；将碳碳‑铜复合材料前驱体进行石墨化，石墨化结束后即制备得到具有良好散热和耐磨性的碳碳‑铜复合材料。本发明所制备的碳碳‑铜复合材料具有极佳的力学性能、导热性能和耐磨性能，其纤维轴向的热导率≥100W(m·k‑1)，垂直纤维轴向的热导率≥300W(m·k‑1)，其耐磨性约为碳碳复合材料1.5倍。
Preparation method of carbon-carbon-copper composite material with good heat dissipation and wear resistance
具有良好散热和耐磨性的碳碳-铜复合材料的制备方法
BAI LIANG (Autor:in) / SUN LIWEI (Autor:in) / CHANG HONGXU (Autor:in) / LIU JINGSHUN (Autor:in) / YANG YING (Autor:in) / FAN MAO (Autor:in) / LIU JUN (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
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