634875

Óxido de alúmina

single crystal substrate, <0001>

• Sinónimos: Alúmina
• Fórmula lineal: Al₂O₃
• Número de CAS: 1344-28-1
• Peso molecular: 101.96
• EC Number: 215-691-6
• MDL number: MFCD00003424
• UNSPSC Code: 12352303
• eCl@ss: 38120402
• PubChem Substance ID: 24882698
• NACRES: NA.23

Propiedades

• description: Crystallographic D spacing ((0001) - c plane: 2.165 Angstrom); Crystallographic D spacing ((1011) - s plane: 1.961 Angstrom); Crystallographic D spacing ((1040) - m plane: 1.375 Angstrom); Crystallographic D spacing ((1102) - r plane: 1.740 Angstrom); Crystallographic D spacing ((1120) - a plane: 2.379 Angstrom); Crystallographic D spacing ((1123) - n plane: 1.147 Angstrom); single side polished
• Quality Level: 100
• form: single crystal substrate
• hardness: 9 mohs
• L × W × thickness: 10 mm × 10 mm × 0.5 mm
• mp: 2040 °C (lit.)
• semiconductor properties: <0001>
• SMILES string: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O
• InChI key: TWNQGVIAIRXVLR-UHFFFAOYSA-N

Descripción

Features and Benefits

Common substrate for III-V nitrides as well as many other epitaxial films.

Physical properties

thermal expansion = 7.5 × 10^-6 /°C; specific heat = 0.10 cal/°C; thermal conductivity = 46.06 @ 0 °C, 25.12 @ 100 °C, 12.56 @ 400 °C (W/m,K); dielectric constant = ~9.4 @ 300 K at A axis, ~11.58 @ C axis; loss tangent at 10 GHz < 2 × 10^-5 at A axis, 5 × 10^-6 at C axis

Physical form

Crystalline, hexagonal (a = 4.758 Å, c = 12.992)

Información de seguridad

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)