Terbium Oxide (Tb₄O₇)

Category Details
Chemical Formula Tb₄O₇
Appearance Dark brown‑black powder
Properties
  • Strong magneto-optic behavior
  • Density: ~7.3 g/cm³
  • Melting Point: ~2340°C
  • Excellent oxidizing characteristics
  • Stable in many high-temperature applications
Applications
  • Green phosphors for LEDs and display technologies
  • Magneto‑optic recording materials
  • Fuel cell catalysts and specialty catalysts
  • Stabilizer in high-temperature alloys
  • Terfenol‑D and magnetostrictive materials
Production
  • Recovered from rare-earth bearing minerals and refined via solvent extraction
  • Calcination to produce stable oxide phases
Market Value
  • Valuable for phosphor and high-performance magnetostrictive markets
  • Demand from LED/display and specialty alloy sectors
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