Merck
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634875

Sigma-Aldrich

Óxido de alúmina

single crystal substrate, <0001>

Synonym(s):
Alúmina
Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
Número de EC:
Número MDL:
eCl@ss:
38120402
ID de la sustancia en PubChem:
NACRES:
NA.23

descripción

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

formulario

single crystal substrate

dureza

9 mohs

L × An × grosor

10 mm × 10 mm × 0.5 mm

mp

2040 °C (lit.)

propiedades de los semiconductores

<0001>

SMILES string

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Aluminum oxide

form

single crystal substrate

form

nanopowder

form

dispersion, liquid (suspension), nanoparticles

form

dispersion, nanoparticles

mp

2040 °C (lit.)

mp

2040 °C (lit.)

mp

-

mp

-

description

Crystallographic D spacing ((0001) - c plane: 2.165 Angstrom)

description

-

description

-

description

-

hardness

9 mohs

hardness

-

hardness

-

hardness

-

L × W × thickness

10 mm × 10 mm × 0.5 mm

L × W × thickness

-

L × W × thickness

-

L × W × thickness

-

semiconductor properties

<0001>

semiconductor properties

-

semiconductor properties

-

semiconductor properties

-

Características y beneficios

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

Propiedades físicas

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

Forma física

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

Código de clase de almacenamiento

13 - Non Combustible Solids

WGK

nwg

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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