🔬 Discovery

Terbium

Terbio (Tb, Z=65)

Date
1843 · confidence high
Place
Stockholm, Sweden
Credited to
Carl Gustaf Mosander
People
👤 Carl Gustaf Mosander1797–1858
Field
Matter & energy

What was discovered

Mosander separated Gadolin's yttria into three fractions: yttria, erbia and terbia.

The names erbia and terbia were later swapped by confusion.

What it led to

  • Green phosphors for fluorescent lamps and displays
  • Terfenol-D, a magnetostrictive material
  • Sonar sensors and actuators

Built on

  • Gadolin's yttria
  • Fractional precipitation

Made possible

  • Terfenol-D
  • Green phosphor in tri-phosphor lamps

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