Yttrium aluminum oxide

green cub crystal(s); 3–12mm fused pieces; used in the form of a 99.99% pure material as a sputtering target to prepare bubble memory devices [CER91] [LID94]

Yttrium aluminum garnet has the garnet structure and were used at one time as diamond imitations under trade names such as Diamonaire, Diamonique, Diamonite, Kimberly, Triamond, and YAlG for YAG and Diamonique II, Galliant, and Triple G for GGG.. These have been supplanted by cubic zirconia.

Rare earth element doped yttrium aluminum oxide is used in solid state lasers.

Yttrium aluminum oxide (YAO) has garnered interest due to its ability to protect the interior parts of process chambers from the corrosive effects of fluorine-based plasma. This ability is attributed to its low melting point, which enhances the internal bonding capabilities of the atmospheric plasma spray (APS) method^[1].

Non flammable

[1] So, J., Choi, E., Kim, M., Lee, D., Seo, J., Maeng, S., Chung, C.-W., Yun, J.-Y., & Suh, S.-M. (2024). Effect of aluminum content on plasma resistance and contamination particle generation in yttrium aluminum oxide coatings. Materials Science in Semiconductor Processing, 170, Article 107981. https://doi.org/10.1016/j.mssp.2023.107981