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http://dx.doi.org/10.3365/KJMM.2010.48.04.326

The Properties and Manufacture of Porous Tantalum Powder for Capacitor  

Lee, Sang Il (R&D Center, Gaon Cable Co.)
Lee, Seung Young (R&D Center. Vitzrocell Co.)
Won, Chang Whan (Dept. of Nano material Engineering, Chungnam National University)
Publication Information
Korean Journal of Metals and Materials / v.48, no.4, 2010 , pp. 326-334 More about this Journal
Abstract
Porous and net-shaped tantalum powder for a capacitor was formulated in a SHS (self-propagating high-temperature synthesis) process. However, this powder, which has weak strength among its particles and low flow ability, cannot be used for a capacitor. Therefore, this powder was sintered in a high-vacuum furnace to increase agglomeration to improve the flow ability, bonding strength among the particles, and shrinkage during pellet sintering. Finally, it was deoxidated with 2 wt% Mg powder to remove the increased surface oxygen that arose during the sintering process. The final product was analyzed in terms of its chemical and physical properties and was compared with a commercial powder used by a capacitor manufacturer.
Keywords
SHS; capacitor; tantalum powder; deoxidation; porous tantalum;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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