真空管用アルミナに関する研究

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概要

• 論文の詳細を見る

• 1. A sort of methods of refining of Alundum powders were studied. Four methods were tried and it became clear that half of the Na2O contained in Alumdum as the form of β-Al2O3 could be removed briefly.2. Electrical properties of Alundum were studied. It became clear that the breakdown voltage of Alundum was independent on temperature below 1050°C, but dependent on temperature higher than this temperature and also be increased by pre-heating at high temperature. It was because of the evaporation of impurities.Varieties of sizes and purities of Alundum powders show no difference in their electrical properties if they were pre-heated at high temperature.

• 社団法人 日本セラミックス協会の論文

著者

• 山本 弘

  東京芝浦電気株式会社

• 藁谷 尚

  東京芝浦電気株式会社

• 伊藤 集〓

  東京芝浦電気株式会社

関連論文

• 真空管外殻用セラミック
• 真空管用アルミナに関する研究
• 滑石磁器・チタン磁器の將來について
• タイトル無し

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