METHOD FOR PREPARING CAPACITOR-GRADE TANTALUM POWDER WITH HIGH NITROGEN CONTENT, CAPACITOR-GRADE TANTALUM POWDER PREPARED THEREBY, AND ANODE AND CAPACITOR PREPARED FROM TANTALUM POWDER

METHOD FOR PREPARING CAPACITOR-GRADE TANTALUM POWDER WITH HIGH NITROGEN CONTENT, CAPACITOR-GRADE TANTALUM POWDER PREPARED THEREBY, AND ANODE AND CAPACITOR PREPARED FROM TANTALUM POWDER

A method for preparing a tantalum powder of capacitor grade, comprising: solid tantalum nitride is added when potassium fluotantalate is reduced by sodium. The method increases the nitrogen content in the tantalum powder, and at the same time improves the electrical performance of the tantalum powde...

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Hauptverfasser: ZHENG, AIGUO, MA, YUEZHONG, CHENG, YUEWEI, YANG, GUOQI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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creator ZHENG, AIGUO
MA, YUEZHONG
CHENG, YUEWEI
YANG, GUOQI
description A method for preparing a tantalum powder of capacitor grade, comprising: solid tantalum nitride is added when potassium fluotantalate is reduced by sodium. The method increases the nitrogen content in the tantalum powder, and at the same time improves the electrical performance of the tantalum powder. The specific capacitance is increased, and the leakage current and loss is improved. The qualification rate of the anode and the capacitor product is also improved. The method is characterized in that the nitrogen in the tantalum nitride diffuses between the particles of the tantalum powder, with substantially no loss, and thus the nitrogen content is accurate and controllable.
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subjects CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
title METHOD FOR PREPARING CAPACITOR-GRADE TANTALUM POWDER WITH HIGH NITROGEN CONTENT, CAPACITOR-GRADE TANTALUM POWDER PREPARED THEREBY, AND ANODE AND CAPACITOR PREPARED FROM TANTALUM POWDER
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