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Preparation method of high-strength and high-purity graphite material
The invention relates to the technical field of graphite materials, in particular to a preparation method of a high-strength and high-purity graphite material. The preparation method comprises the following steps: dispersing diamond micro-powder, carbon black, phenolic resin and a surfactant according to a preset proportion in absolute ethyl alcohol to prepare slurry, then drying and granulating the slurry, carrying out pre-press molding and dehydration curing, and finally sintering by a spark plasma sintering furnace to obtain the high-strength and high-purity graphite material. According to the prepared graphite material, the volume density is larger than or equal to 2.0 g/cm < 3 >, the Vickers microhardness is larger than or equal to 1.78 GPa, and the compressive strength is larger than or equal to 380
本发明涉及石墨材料技术领域，更具体而言涉及一种高强高纯石墨材料的制备方法。该制备方法包括：将预设比例的金刚石微粉、碳黑、酚醛树脂和表面活性剂在无水乙醇中分散制浆，之后对浆料烘干造粒，并进行预压成型和脱水固化，最后经放电等离子烧结炉烧结得到高强高纯的石墨材料。本发明制备的石墨材料，体积密度≥2.0g/cm3，维氏显微硬度≥1.78GPa，抗压强度≥380MPa。
Preparation method of high-strength and high-purity graphite material
The invention relates to the technical field of graphite materials, in particular to a preparation method of a high-strength and high-purity graphite material. The preparation method comprises the following steps: dispersing diamond micro-powder, carbon black, phenolic resin and a surfactant according to a preset proportion in absolute ethyl alcohol to prepare slurry, then drying and granulating the slurry, carrying out pre-press molding and dehydration curing, and finally sintering by a spark plasma sintering furnace to obtain the high-strength and high-purity graphite material. According to the prepared graphite material, the volume density is larger than or equal to 2.0 g/cm < 3 >, the Vickers microhardness is larger than or equal to 1.78 GPa, and the compressive strength is larger than or equal to 380
本发明涉及石墨材料技术领域，更具体而言涉及一种高强高纯石墨材料的制备方法。该制备方法包括：将预设比例的金刚石微粉、碳黑、酚醛树脂和表面活性剂在无水乙醇中分散制浆，之后对浆料烘干造粒，并进行预压成型和脱水固化，最后经放电等离子烧结炉烧结得到高强高纯的石墨材料。本发明制备的石墨材料，体积密度≥2.0g/cm3，维氏显微硬度≥1.78GPa，抗压强度≥380MPa。
Preparation method of high-strength and high-purity graphite material
一种高强高纯石墨材料的制备方法
HUANG QUAN (author) / LIU QIPENG (author) / MU YUNCHAO (author) / ZHANG QIAN (author) / LI QISONG (author) / CHENG XIAOZHE (author) / JIA SHAOPEI (author) / WANG ZHIXIN (author) / GUAN XIAOYAN (author)
2024-08-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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Preparation method of high-density and high-strength graphite material
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