摘要:
A porous carbon that has an extremely high specific surface area while being crystalline, and a method of manufacturing the porous carbon are provided. A porous carbon has mesopores 4 and a carbonaceous wall 3 constituting an outer wall of the mesopores 4, wherein the carbonaceous wall 3 has a portion forming a layered structure. The porous carbon is fabricated by mixing a polyamic acid resin 1 as a carbon precursor with magnesium oxide 2 as template particles; heat-treating the mixture in a nitrogen atmosphere at 1000°C for 1 hour to cause the polyamic acid resin to undergo heat decomposition; washing the resultant sample with a sulfuric acid solution at a concentration of 1 mol/L to dissolve MgO away; and heat-treating the noncrystalline porous carbon in a nitrogen atmosphere at 2500°C.
摘要:
An object is to provide a graphite-copper composite electrode material that is capable of reducing electrode wear to a practically usable level and to provide an electrical discharge machining electrode using the material. A graphite-copper composite electrode material includes a substrate comprising a graphite material and having pores, and copper impregnated in the pores of the substrate, the electrode material having an electrical resistivity of 2.5 µΩm or less, preferably 1.5 µΩm or less, more preferably 1.0 µΩm or less. It is desirable that the substrate comprising the graphite material have an anisotropy ratio of 1.2 or less. It is desirable that an impregnation rate ϕ of the copper in the electrode material is 13% or greater. It is desirable that the substrate comprising the graphite material have a bulk density of from 1.40 Mg/m 3 to 1.85 Mg/m 3 .
摘要翻译:本发明的目的是提供一种石墨 - 铜复合电极材料,其能够将电极磨损降低到实际可用的水平,并提供使用该材料的放电加工电极。 石墨 - 铜复合电极材料包括含有石墨材料并具有孔隙的基底和浸渍在基底孔中的铜,该电极材料的电阻率为2.5微米或更小,优选为1.5微米或更小 ,更优选为1.0μm以下。 希望包含石墨材料的基板的各向异性比为1.2以下。 希望电极材料中铜的浸渍率为13%以上。 希望包含石墨材料的基材的堆积密度为1.40Mg / m 3至1.85Mg / m 3。