Terbium foil, 0.127 mm thick, 99.9%

Terbium is a chemical element with symbol Tb and atomic number 65. It is a silvery-white rare earth metal that is malleable, ductile and soft enough to be cut with a knife.

T 0615 (OTTO) Terbium foil, 0.127 mm thick, 99.9% - used as a dopant in calcium fluoride, calcium tungstate and strontium molybdate, materials that are used in solid-state devices, and as a crystal stabilizer of fuel cells which operate at elevated temperatures, together with ZrO2.