| 摘要 |
Porous copper workpieces are obtained by A. OBTAINING A COPPER WORKPIECE HAVING A SELECTED GRAIN SIZE; B. MACHINING THE WORKPIECE TO A SELECTED SIZE AND SHAPE; C. ELECTROCHEMICALLY POLISHING SAID WORKPIECE; D. ANNEALING SAID WORKPIECE FROM STEP (C) IN OXYGEN AT A TEMPERATURE FROM 750 DEG TO 1080 DEG C. and a pressure of 10-4 - 102 Torr; and E. ANNEALING SAID WORKPIECE FROM STEP (D) IN HYDROGEN.
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