| 释义 |
thoriated, a.|ˈθɔərɪeɪtɪd|
[f. thorium + -ate3 + -ed1.]
Of tungsten, or a valve filament made of tungsten: containing a proportion of thorium, e.g. to enhance electron emission in a valve.
1922Encycl. Brit. XXXII. 1025/1 A thermionic valve of the latter type comprises a highly exhausted glass bulb having in it a filament of tungsten, or thoriated tungsten. 1951Engineering 12 Oct. 459/1 The final..output stage consists of two water-cooled thoriated-filament triodes. 1973J. G. Tweeddale Materials Technol. II. v. 118 Commonly, a non consumable electrode is made of tungsten or a tungsten alloy (notably thoriated tungsten). |