| 摘要 |
Production of valve metal comprises fusing a mixture of a valve metal precursor (2) and a diluent (4) in a first vessel (10). The product is transferred to a second vessel (20) under the same or different conditions of temperature and pressure, initiating conversion of the precursor to valve metal. Independent claims are included for: (A) valve metal powder with an average grain shape factor, determined by REM imaging, of 0.65 - 1.00; (B) use of the powder to produce capacitors or for working by cold gas spraying; (C) capacitors produced using the powder; (D) sintered metal products containing the powder; and (E) electrical and electronic equipment containing the capacitors. |
