YTTRIUM OXIDE - Oxide sintering additive
H.C. Starck’s emphasis is on non-oxide products regarding ceramic precursors. In addition, H.C. Starck offers yttrium oxide (Y2O3) as a classic sintering additive in ceramic materials such as silicon nitride (Si3N4) and aluminum nitride (AlN) and for stabilizing zirconium dioxide (ZrO2) (e.g. for use in oxygen sensors or dental technology).
Suitable for use in many special applicationsIn the refractory field, the application range includes use as a compound for applications that require stability at high temperatures, such as coating material for graphite in nuclear technology. Because yttrium oxide forms a solid solution with uranium oxide, it is also employed as a diluting agent of uranium oxide for nuclear fuel rods.
Other uses of yttrium oxide include the following: as a precursor material for high-temperature superconductors (YBCO), in red luminophores for CRT monitors, in the production of yttrium and other yttrium compounds, in optical coatings, in the manufacture of IR and UV translucent glass (together with thorium dioxide), as a component of high-temperature superalloys and ODS (oxide dispersion strengthened) materials and massive ceramics, and in coatings for semiconductor production technology equipment (reactive ion etching – RIE).For producing of multilayer ceramic capacitors (MLCCs), Yttrium oxide is also employed as a dopant to reduce the Curie temperature of the barium titanate substrate. For this application, H.C. Starck can supply Yttrium oxide in different grain sizes suitable for the respective substrate.
In general, our range of products includes a variety of qualities with purities up to > 99.95 percent.