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PROCESS FOR PRODUCING TANTALLUM POWDER OF HIGH QUALITY AND A HIGH-CAPACITANCE ELECTRODE WITH LOW LEADS PRODUCED FROM THIS POWDER
PROCESS FOR PRODUCING TANTALLUM POWDER OF HIGH QUALITY AND A HIGH-CAPACITANCE ELECTRODE WITH LOW LEADS PRODUCED FROM THIS POWDER
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机译:生产这种粉末生产的钽粉质量高,铅含量低的高容量电极的方法
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摘要
A process for producing capacitor grade powder, electrodes, and finished capacitors therefrom having reduced electrical leakage characteristics. The powder is prepared by reacting Group V-B base materials with quantities of between 500 to 7000 ppm of nitrogen and 700 to 3000 ppm of oxygen. Electrical leakage is reduced by at least 28% for electrodes anodized at 100 volts or greater in comparison with electrodes and finished capacitors made from undoped materials. A range of specific charge of up to 25,000 uFV/g is achieved for sintering temperatures of 1400 DEG C. to 1800 DEG C.
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