"Refractory Metals"
ABOUT THIS LESSON: Material Science, Refractory Metals

Lesson 21 of 33. Refractory metals are high temperature, hard metals. This lesson introduces molybdenum, tungsten, niobium and tantalum. The use of tungsten carbide for tools and tungsten filaments for incandescent light bulbs is discussed.

Knowledge Check:
What characterizes refractory metals?
What is the process to make tungsten carbide?
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ABOUT THE AUTHOR: Theodore Miner has a B.S. degree in Physics and a degree in Electronics. He has worked for many years in the area of Industrial Control systems. His work involves evaluating materials and components used in electronic systems and performing failure analysis on control systems. His hobbies include tinkering with microcontroller home projects and ham radio.