Assertion: elemental tungsten | /r/ObjectUse | used in vacuum tube filaments
Facets:
Source sentences:
text: Because it retains its strength at high temperatures and has a high melting point, elemental tungsten is used in many high-temperature applications, such as Incandescent light bulb, cathode-ray tube, and vacuum tube filaments, heating elements, and rocket engine nozzles.
text: Because it retains its strength at high temperatures and has a high melting point, elemental tungsten is used in many high-temperature applications, such as light bulb, cathode-ray tube, and vacuum tube filaments, heating elements, and rocket engine nozzles.