Tantalum, It's Origin and Applications

Tantalum was first discovered in 1801. Tantalum is a rare, gray-blue metal found in approximately 15% of the world’s pegmatites. Tantalum has a number of properties that make it a valuable commodity today, including:

• High boiling point (5,425°C)
  
• High melting point (2,997°C)
  
• Resistance to corrosion
  
• Ductility, i.e. it alloys well
  
• Superconductivity
  
• Low thermal expansion
  
• High capacitance

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