Nb-Al ALLOY POWDER AND METHOD FOR ELECTROLYTIC CAPACITOR AND METHOD FOR PREPARATION THEREOF, AND ELECTROLYTIC CAPACITOR

The present invention provides an Nb-Al alloy powder for electrolytic capacitors. The powder is useful in manufacturing a component of an electrolytic capacitor which has a high capacitance and dielectric constant and which includes stable dielectric layers. The powder includes particles, which are...

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Bibliographische Detailangaben
1. Verfasser:	MASANA IMAGUMBAI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The present invention provides an Nb-Al alloy powder for electrolytic capacitors. The powder is useful in manufacturing a component of an electrolytic capacitor which has a high capacitance and dielectric constant and which includes stable dielectric layers. The powder includes particles, which are covered with dielectric layers when the powder is processed into an anode of an electrolytic capacitor. The particles have dendritic microstructures principally containing NbAl3, Nb2Al, Nb3Al, or Nb and matrix containing Al or eutectic structures containing at least two selected from the group consisting of NbAl3, Nb2Al, Nb3Al, and Nb. The eutectic structures or the matrix surround the dendritic microstructures.