TUNGSTEN ALLOY, AND TUNGSTEN ALLOY PART, DISCHARGE LAMP, TRANSMITTING TUBE AND MAGNETRON USING TUNGSTEN ALLOY

摘要

The purpose of the present invention is to obtain a tungsten alloy having emission, characteristic equal to or greater than a thorium-containing tungsten alloy, without using thorium, which is a radioactive substance; and to provide a discharge lamp, transmitting tube as magnetron that use said tungsten alloy. The present invention includes, in the tungsten alloy, an Hf component containing HfC in a range of 0.1 wt% to 3 wt% in terms of HfC.