B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
B22F 9/20 (2006.01) C22B 34/24 (2006.01) C25C 3/26 (2006.01) C25C 5/04 (2006.01) H01G 9/052 (2006.01)
Patent
CA 2751630
A method of producing metallic powder for use in the manufacture of a capacitor comprises the step of reducing a non-metallic compound to metal in contact with a molten salt. The salt comprises, for at least a portion of the process, a dopant element that acts as a sinter retardant in the metal. In preferred examples, the metallic powder is Ta or Nb powder produced by the reduction of a Ta or Nb oxide and the dopant is boron, nitrogen or phosphorous.
Un procédé de production de poudre métallique à utiliser lors de la fabrication d'un condensateur comprend l'étape consistant à réduire un composé non métallique en métal par contact avec un sel fondu. Le sel comprend, pendant au moins une partie du processus, un élément dopant qui sert d'élément de ralentissement de frittage dans le métal. Dans des exemples préférés, la poudre métallique est de la poudre de Ta ou de Nb produite par la réduction d'un oxyde de Ta ou de Nb et le dopant est du bore, de l'azote ou du phosphore.
Margerison Ian
Rasheed Raymond Kevin
Metalysis Limited
Ridout & Maybee Llp
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