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Graphene nanosheet composite silicon carbide conductive ceramic and preparation method thereof
According to the scheme, the preparation method of the graphene nanosheet composite silicon carbide conductive ceramic comprises the following steps: obtaining a graphene dispersion liquid and a silicon carbide dispersion liquid, mixing the graphene dispersion liquid and the silicon carbide dispersion liquid to prepare a graphene silicon carbide mixed solution, adding a conductive additive and a sintering additive, grinding to prepare graphene silicon carbide slurry, and sintering the graphene silicon carbide slurry to obtain the graphene nanosheet composite silicon carbide conductive ceramic. The conductive additive is at least one of glycerol, glycerol and methyl cellulose, and then granulating, forming and sintering to prepare the graphene nanosheet composite silicon carbide conductive ceramic. According to the scheme, when the content of the graphene nanosheets is low, 1-4% of the conductive additive is added at the same time, and experiments show that by adding the conductive additive, the resistivity of the silicon carbide conductive ceramic can be improved when the adding amount of the graphene nanosheets is 1-3%, and the resistivity of the silicon carbide conductive ceramic can be maintained within 23-30 omega.cm.
本发明的方案中，一种石墨烯纳米片复合碳化硅导电陶瓷的制备方法，包括以下步骤：获取石墨烯分散液及碳化硅分散液，将两者混合后制得石墨烯碳化硅混合溶液，再加入导电助剂、烧结助剂研磨，制得石墨烯碳化硅浆料，所述导电助剂为丙三醇、甘油、甲基纤维素中的至少一种，后经造粒、成型、烧结，制得石墨烯纳米片复合碳化硅导电陶瓷。本发明的方案中，在石墨烯纳米片含量较低时，同时加入1‑4%份的导电助剂，实验表明，加入导电助剂可以改善在石墨烯纳米片加入量为1‑3%时，碳化硅导电陶瓷的电阻率，其电阻率可以维持在23‑30Ω·cm之内。
Graphene nanosheet composite silicon carbide conductive ceramic and preparation method thereof
According to the scheme, the preparation method of the graphene nanosheet composite silicon carbide conductive ceramic comprises the following steps: obtaining a graphene dispersion liquid and a silicon carbide dispersion liquid, mixing the graphene dispersion liquid and the silicon carbide dispersion liquid to prepare a graphene silicon carbide mixed solution, adding a conductive additive and a sintering additive, grinding to prepare graphene silicon carbide slurry, and sintering the graphene silicon carbide slurry to obtain the graphene nanosheet composite silicon carbide conductive ceramic. The conductive additive is at least one of glycerol, glycerol and methyl cellulose, and then granulating, forming and sintering to prepare the graphene nanosheet composite silicon carbide conductive ceramic. According to the scheme, when the content of the graphene nanosheets is low, 1-4% of the conductive additive is added at the same time, and experiments show that by adding the conductive additive, the resistivity of the silicon carbide conductive ceramic can be improved when the adding amount of the graphene nanosheets is 1-3%, and the resistivity of the silicon carbide conductive ceramic can be maintained within 23-30 omega.cm.
本发明的方案中，一种石墨烯纳米片复合碳化硅导电陶瓷的制备方法，包括以下步骤：获取石墨烯分散液及碳化硅分散液，将两者混合后制得石墨烯碳化硅混合溶液，再加入导电助剂、烧结助剂研磨，制得石墨烯碳化硅浆料，所述导电助剂为丙三醇、甘油、甲基纤维素中的至少一种，后经造粒、成型、烧结，制得石墨烯纳米片复合碳化硅导电陶瓷。本发明的方案中，在石墨烯纳米片含量较低时，同时加入1‑4%份的导电助剂，实验表明，加入导电助剂可以改善在石墨烯纳米片加入量为1‑3%时，碳化硅导电陶瓷的电阻率，其电阻率可以维持在23‑30Ω·cm之内。
Graphene nanosheet composite silicon carbide conductive ceramic and preparation method thereof
石墨烯纳米片复合碳化硅导电陶瓷及其制备方法
HOU JINGYUAN (author) / WANG BIN (author) / WANG CHENJIAO (author) / LIU PENG (author) / LI HUI (author) / HUANG KAI (author) / JING CHANGLONG (author)
2024-05-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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