Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon-based and ceramic-based composite material
Belonging to the technical field of ceramic materials, the invention relates to a carbon-based and ceramic-based composite material, which comprises the following raw materials by weight: 78-90 parts of silicon carbide powder, 3-5 parts of metal oxide, 1.5-2.5 parts of silicon nitride powder, and 0-5 parts of an anti-wear agent. The composite material is prepared by the following steps: 1, weighing raw materials in parts by weight, adding a dispersion medium, and uniformly mixing to obtain slurry; drying the slurry until the mass percentage of the dispersion medium in the slurry is less than or equal to 2% to obtain mixed powder; 2, sequentially carrying out dry pressing molding and cold isostatic pressing molding on the mixed powder to obtain a green body; and 3, sintering the green body in nitrogen to obtain the carbon-based and ceramic-based composite material. The dispersion medium added in the preparation process can disperse the raw materials, can also improve the viscosity between the powders, improves the binding force, avoids the formation of closed pores in the material, improves the heat transfer efficiency of the material, and further improves the heat-conducting property.
本发明涉及基于碳基与陶瓷基复合材料，属于陶瓷材料技术领域，包括如下重量份原料：碳化硅粉体78‑90份、金属氧化物3‑5份、氮化硅粉体1.5‑2.5份、耐磨剂0‑5份；该复合材料通过如下步骤制备：第一步、按照重量份称取原料，加入分散介质，混合均匀得浆料；干燥浆料至浆料中分散介质的质量百分数≤2％，得混合粉体；第二步、对混合粉体依次进行干压成型和冷等静压成型，得生坯；第三步、生坯在氮气中进行烧结，得基于碳基与陶瓷基复合材料。制备过程中添加的分散介质可以分散原料，也可以提高粉体之间的粘度，提高结合力，避免材料内部形成闭气孔，提高材料的热传递效率，进而提高导热性能。
Carbon-based and ceramic-based composite material
Belonging to the technical field of ceramic materials, the invention relates to a carbon-based and ceramic-based composite material, which comprises the following raw materials by weight: 78-90 parts of silicon carbide powder, 3-5 parts of metal oxide, 1.5-2.5 parts of silicon nitride powder, and 0-5 parts of an anti-wear agent. The composite material is prepared by the following steps: 1, weighing raw materials in parts by weight, adding a dispersion medium, and uniformly mixing to obtain slurry; drying the slurry until the mass percentage of the dispersion medium in the slurry is less than or equal to 2% to obtain mixed powder; 2, sequentially carrying out dry pressing molding and cold isostatic pressing molding on the mixed powder to obtain a green body; and 3, sintering the green body in nitrogen to obtain the carbon-based and ceramic-based composite material. The dispersion medium added in the preparation process can disperse the raw materials, can also improve the viscosity between the powders, improves the binding force, avoids the formation of closed pores in the material, improves the heat transfer efficiency of the material, and further improves the heat-conducting property.
本发明涉及基于碳基与陶瓷基复合材料，属于陶瓷材料技术领域，包括如下重量份原料：碳化硅粉体78‑90份、金属氧化物3‑5份、氮化硅粉体1.5‑2.5份、耐磨剂0‑5份；该复合材料通过如下步骤制备：第一步、按照重量份称取原料，加入分散介质，混合均匀得浆料；干燥浆料至浆料中分散介质的质量百分数≤2％，得混合粉体；第二步、对混合粉体依次进行干压成型和冷等静压成型，得生坯；第三步、生坯在氮气中进行烧结，得基于碳基与陶瓷基复合材料。制备过程中添加的分散介质可以分散原料，也可以提高粉体之间的粘度，提高结合力，避免材料内部形成闭气孔，提高材料的热传递效率，进而提高导热性能。
Carbon-based and ceramic-based composite material
基于碳基与陶瓷基复合材料
CHEN JINHUA (Autor:in) / LIU QIUSHENG (Autor:in)
04.03.2022
Patent
Elektronische Ressource
Chinesisch
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