200 kHz以下の周波領域における水の比誘電率と導電率に及ぼす二酸化炭素の影響

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2024/06/01

タイトル(英語): Effect of Carbon Dioxide on Relative Dielectric Constant and Conductivity of Pure Water in Frequency Region under 200 kHz

著者名: 花井　正広（福岡大学），高村　紀充（福岡大学），荒岡　信隆（福岡大学）

著者名(英語): Masahiro Hanai (Fukuoka University), Norimitsu Takamura (Fukuoka University), Nobutaka Araoka (Fukuoka University)

キーワード: 純水，比誘電率，導電率，低周波，炭素電極　　pure water，relative dielectric constant，conductivity，low frequency，carbon electrodes

要約(英語): In order to use pure water as an alternative to insulating oil, the conductivity of pure water must be at least four orders of magnitude lower. It is important to investigate the frequency characteristics of relative dielectric constant and conductivity of pure water to investigate the charge carriers that determine the conductivity. It is necessary to use metal electrodes to determine the relative dielectric constant and conductivity. However, since electrodes can affect relative dielectric constant and conductivity, true relative dielectric constant and conductivity are not yet clarified. In this paper, we investigated the frequency characteristics of the relative dielectric constant and conductivity of pure water dissolved in carbon dioxide using high purity carbon electrodes. As a result, it was clarified that the conductivity of pure water in which carbon dioxide was dissolved did not change much in low frequency region, but relative dielectric constant showed huge value as the frequency decreased.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.144 No.6 （2024） 特集：磁性材料の高周波特性活用技術動向と展望

本誌掲載ページ: 228-234 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/144/6/144_228/_article/-char/ja/