Articles
  • Stable temperature dependence of dielectric properties in BaTiO3-Nb2O5-Co3O4 + BaO-V2O5 system

  • Chang Ho Lee and Jung Rag Yoon*

  • R&D Center, Samwha Capacitor, Yong-In, Korea

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

High reliability components that can operate reliably in harsh and special environments such as aerospace and military fields are required. In this study, the BaTiO3-Nb2O5-Co3O4 composition, which is the basic composition of precious metal electrode multilayer ceramic capacitors with high reliability, was added with the binary BaO-V2O5 composition to confirm the electrical properties and microstructure changes. First, a BaTiO3-Nb2O5-Co3O4 composition having a core-shell structure was prepared, and then a Ba3V4O13 composition was synthesized with a binary BaO-V2O5 composition. Then, 1, 3, and 5 wt% of Ba3V4O13 composition were added to observe changes in electrical properties and microstructure according to firing temperatures. As a result, the maximum dielectric constant 2502, dielectric loss of 0.74%, insulation resistance of 1.04E12 Ω, and X8R temperature characteristics could be satisfied in the firing temperature range of 1150-1210 ℃


Keywords: Aerospace, Precious metal electrode, Multilayer ceramic capacitors

This Article

  • 2023; 24(3): 588-593

    Published on Jun 30, 2023

  • 10.36410/jcpr.2023.24.3.588
  • Received on Jan 26, 2023
  • Revised on Mar 22, 2023
  • Accepted on May 25, 2023

Correspondence to

  • Jung Rag Yoon

  • R&D Center, Samwha Capacitor, Yong-In, Korea
    Tel : +82-31-330-5765 Fax: +82-31-332-7661

  • E-mail: yoonjungrag@samwha.com