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12005-21-9

12005-21-9 Structure

12005-21-9 Structure
IdentificationBack Directory
[Name]

YTTRIUM ALUMINUM OXIDE
[CAS]

12005-21-9
[Synonyms]

YAG
YAlO3
Y4Al2O9
Yttriumaluminate
Yttriumorthoaluminate
Yttriumaluminiumoxide
ALUMINIUMYTTRIUMOXIDE
ALUMINUM YTTRIUM OXIDE
YTTRIUM ALUMINUM OXIDE
YTTRIUM ALUMINUM GARNET
aluminumyttriumoxide(al5y3o12)
Yttrium Aluminium Neodymium doped
Yttrium aluminum oxide, 99.9% (REO)
Yttrium Aluminum Oxide Nanoparticles
pentaaluminium triyttrium dodecaoxide
YTTRIUM ALUMINUM OXIDE, NANOPOWDER, 99%
Yttrium aluminum oxide, 99.99% (metals basis)
Yttrium Aluminum Oxide Nanopowder < 150NM(BET)
Aluminum yttrium oxide, YAG, Yttrium aluminum garnet
oxo(oxoalumanyloxy)alumane:oxo(oxoalumanyloxy)yttrium:oxo(oxoyttriooxy)yttrium
[EINECS(EC#)]

234-465-8
[Molecular Formula]

Al5O12Y3
[MDL Number]

MFCD00213958
[MOL File]

12005-21-9.mol
[Molecular Weight]

593.62
Chemical PropertiesBack Directory
[Melting point ]

1760℃
[density ]

4.56 g/mL at 25 °C(lit.)
[refractive index ]

1.833
[form ]

Powder
[color ]

green cubic crystals, crystalline
[Water Solubility ]

Insoluble in water.
[Exposure limits]

ACGIH: TWA 1 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3
[InChI]

1S/5Al.12O.3Y
[InChIKey]

ITMSSWCUCPDVED-UHFFFAOYSA-N
[SMILES]

O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Y]=O.O=[Y]O[Y]=O
[EPA Substance Registry System]

Aluminum yttrium oxide (Al5Y3O12) (12005-21-9)
Hazard InformationBack Directory
[Chemical Properties]

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]
[Uses]

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.
[Application]

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].
[Flammability and Explosibility]

Nonflammable
[References]

[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
Safety DataBack Directory
[WGK Germany ]

3
[TSCA ]

Yes
[REACH Registrations]

Active
[Storage Class]

11 - Combustible Solids
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