RAS Chemistry & Material ScienceМеталлы Russian Metallurgy

  • ISSN (Print) 0869-5733
  • ISSN (Online) 3034-5391

Influence of Heat Treatment Conditions of Calcium-thermal Tantalum Powders on the Characteristics of Capacitor Anodes

PII
S30345391S086957332506112120-1
DOI
10.7868/S303453912506112120
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume / Issue number 6
Pages
112-120
Abstract
The results of investigation of the influence of various methods of heat treatment of primary calcium-thermal tantalum powders on the characteristics of capacitor anodes are presented. Heat treatment of powder with specific surface area of 8.6 m/g in the temperature range of 900–1300 °C followed by deoxidation with magnesium vapor allowed to obtain capacitor powders with specific charge from 30000 to 80000 μC/g. As a result of powder heat treatment such characteristics of anodes as sintering shrinkage, powder specific surface utilization factor (increased from 4 to 20% at anodization up to 30 V) were improved. Specific charge losses at increasing the anodizing voltage from 16 to 40 V decreased from 80 to 25%.
Keywords
кальциетермическое восстановление танталовые конденсаторные порошки удельный заряд
Date of publication
01.06.2025
Year of publication
2025
Number of purchasers
0
Views
21

References

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