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AssigneeToyo Tanso Co., Ltd.
InventorsMegumu Doi, Tsuyoshi Matsumoto, Yoshinari Miyamoto, Masao Tokita
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A carbon material and a method of manufacturing the carbon material are provided that can improve hardness and physical properties while fully gaining the benefit of SPS method, which makes it possible to obtain a dense carbon material with very short time. The carbon material is manufactured by a first step of filling mixture powder containing a carbon aggregate and a binder in a mold, and a second step of sintering the mixture powder by a spark plasma sintering method while compressing the mixture powder. The carbon material is characterized by having a Shore hardness HSD value of 60 or greater, and having a thermal expansion anisotropy ratio, an electrical resistivity anisotropy ratio, or a thermal conductivity anisotropy ratio, of 1.5 or greater.
1-15. (canceled)
A carbon material characterized by having a Shore hardness HSD value of 60 or greater and a thermal expansion anisotropy ratio of 1.5 or greater.
A carbon material characterized by having a Shore hardness HSD value of 60 or greater and an electrical resistivity anisotropy ratio of 1.5 or greater.
A carbon material characterized by having a Shore hardness HSD value of 60 or greater and a thermal conductivity anisotropy ratio of 1.5 or greater.
A method of manufacturing a carbon material, characterized by comprising:
A carbon material manufactured by filling mixture powder containing a carbon aggregate and a binder in a mold, and thereafter sintering the mixture powder by a spark plasma sintering method while compressing the mixture powder, the carbon material having a bulk density of 1.8 Mg/m3 or greater.
Dependencies are inferred from the claim text.