Yttrium (Y): LCD Sputtering Targets, Activator for Phosphors, Specialty Alloy Additive Material

Yttrium is a gray-black metal with chemical symbol Y. It was the first discovered rare earth metal element and is malleable. It reacts with hot water and is easily soluble in dilute acids. Yttrium is relatively stable in air and has strong corrosion resistance.

Applications

1. As LCD sputtering targets.
2. Can also be used as an activator for certain phosphor materials.
3. Can also serve as a special alloy additive.

Product Series

Health and Safety Information

Packaging Specifications

• Standard packaging: 50 kg/drum, 500 kg/pallet, ton bags
• Sample packaging: 500 g/bag, 1 kg/bottle

About Yttrium

After separating yttrium from other rare earth elements through ion exchange or solvent extraction technology, yttrium metal can be prepared by metallothermic reduction. Lithium thermal reduction of rare earth chlorides differs from calcium thermal reduction in that the former's reduction process occurs in the gas phase.

The lithium thermal reduction reactor has two heating zones, with the reduction and distillation processes conducted in the same equipment. Anhydrous yttrium chloride is placed in the upper titanium reactor crucible (which also serves as the YCl3 distillation chamber), while the reducing agent lithium metal is placed in the lower crucible. The stainless steel reaction vessel is then evacuated to 7Pa before heating begins.

When the temperature reaches 1000°C, it is maintained for a certain period to allow full reaction between YCl3 vapor and lithium vapor. The reduced yttrium metal solid particles fall into the lower crucible. After completing the reduction reaction, only the lower crucible is heated to distill LiCl into the upper crucible. The reduction process typically takes about 10 hours.

To obtain relatively pure yttrium metal, 99.97% high-purity lithium must be used as the reducing agent along with twice-distilled anhydrous YCl3.