Method for producing electrode material
AssigneeMeidensha Corporation
InventorsKaoru Kitakizaki, Keita Ishikawa, Shota Hayashi, Nobutaka Suzuki, Kosuke Hasegawa
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Abstract
A method for producing an electrode material, provided to involve: (i) a provisional sintering step of sintering a mixed powder containing a powder of a heat resistant element and a powder of Cr to obtain a solid solution where the heat resistant element and Cr are dissolved; (ii) a pulverizing step of pulverizing the solid solution to obtain a powder; (iii) a main sintering step of sintering a molded body obtained by molding the powder of the solid solution, to produce a sintered body; and (iv) a Cu infiltration step of infiltrating the sintered body with Cu.
Claims6
A method for producing an electrode material, comprising:
- a provisional sintering step of sintering a mixed powder containing a powder of at least one kind of a heat resistant element selected from the group consisting of Mo, W, Ta, Nb, V and Zr and a powder of Cr to obtain a solid solution where the heat resistant element and Cr are dissolved;
- a pulverizing step of pulverizing the solid solution to obtain a powder of the solid solution;
- a main sintering step of sintering a molded body obtained by molding the powder of the solid solution, to produce a sintered body;
- and
- a Cu infiltration step of infiltrating the sintered body with Cu,
- wherein in the provisional sintering step the mixed powder is sintered until either a peak corresponding to Cr element or a peak corresponding to the heat resistant element completely disappears, the peak corresponding to Cr element and the peak corresponding to the heat resistant element being observed by X ray diffraction measurement made on the solid solution.
Dependencies are inferred from the claim text.