Product Properties
Yttrium Oxide (Y2O3)
CAS No.: 1314-36-9
Purity: 99.9999% (6N) 99.999%(5N) 99.99%（4N）99.9%(3N)(Y2O3/REO)
Molecular Weight: 225.81 Melting point: 2425 celsium degree
Appearance: White powder
Specification of Yttrium Oxide
| Product C | yttrium oxide | ||||
| Grade | 99.9999% | 99.999% | 99.99% | 99.9% | 99% |
| CHEMICAL COMPOSITION | |||||
| Y2O3/TREO (% min.) | 99.9999 | 99.999 | 99.99 | 99.9 | 99 |
| TREO (% min.) | 99.9 | 99 | 99 | 99 | 99 |
| Loss On Ignition (% max.) | 0.5 | 1 | 1 | 1 | 1 |
| Rare Earth Impurities | ppm max. | ppm max. | ppm max. | % max. | % max. |
| La2O3/TREO CeO2/TREO Pr6O11/TREO Nd2O3/TREO Sm2O3/TREO Eu2O3/TREO Gd2O3/TREO Tb4O7/TREO Dy2O3/TREO Ho2O3/TREO Er2O3/TREO Tm2O3/TREO Yb2O3/TREO Lu2O3/TREO | 0.1 0.1 0.5 0.5 0.1 0.1 0.5 0.1 0.5 0.1 0.2 0.1 0.2 0.1 | 1 1 1 1 1 2 1 1 1 2 2 1 1 1 | 30 30 10 20 5 5 5 10 10 20 15 5 20 5 | 0.01 0.01 0.01 0.02 0.004 0.005 0.01 0.001 0.005 0.03 0.032 0.001 0.005 0.001 | 0.03 0.03 0.03 0.03 0.03 0.04 0.1 0.05 0.05 0.3 0.3 0.03 0.03 0.02 |
| Non-Rare Earth Impurities | ppm max. | ppm max. | ppm max. | % max. | % max. |
| Fe2O3 SiO2 CaO Cl- CuO NiO PbO Na2O K2O MgO Al2O3 TiO2 ThO2 | 1 10 10 50 1 1 1 1 1 1 5 1 1 | 3 50 30 100 2 3 2 15 15 15 50 50 20 | 10 100 100 300 5 5 10 10 15 15 50 50 20 | 0.002 0.03 0.022 0.05 | 0.01 0.05 0.46 0.1 |
Application of Yttrium Oxide
Phosphors and Lighting: Yttrium oxide is extensively used as a host material for phosphors in color television tubes, LED lights, and other lighting applications. When doped with rare earth elements such as europium, yttrium oxide emits bright red light, making it an essential component in creating red phosphors for display and lighting technologies.
Ceramics and Glass: Due to its high melting point and stability, yttrium oxide is used to produce high-strength, high-temperature ceramics. These ceramics have applications in thermal barrier coatings for jet engines, in oxygen sensors, and as components in dental and medical prosthetics. Yttrium oxide is also added to glass formulations to increase resistance to thermal shock and improve transparency in high-temperature environments.
Electronics and Semiconductors: Yttrium oxide is utilized in the electronics industry as an insulating and stabilizing layer in various semiconductor devices. Its high dielectric constant makes it suitable for use in gate dielectrics in metal-oxide-semiconductor field-effect transistors (MOSFETs) and as a buffer layer for high-temperature superconductors.
Sintering Aid: In powder metallurgy, yttrium oxide is used as a sintering aid to lower the sintering temperature and improve the densification of ceramics and metals. This application is critical in producing dense, high-quality components for aerospace, automotive, and electronic applications.
Medical: Yttrium oxide is also finding its way into medical applications, particularly in the development of radiopharmaceuticals for cancer therapy. When doped with radioactive isotopes, such as Yttrium-90, yttrium oxide particles can be used for internal radiation therapy targeting specific types of cancer cells.