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634875

Sigma-Aldrich

Aluminum oxide

single crystal substrate, <0001>

Sinonimo/i:

Sapphire, Alumina

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About This Item

Formula condensata:
Al2O3
Numero CAS:
1344-28-1
Peso molecolare:
101.96
Numero CE:
215-691-6
Numero MDL:
MFCD00003424
Codice UNSPSC:
12352303
eCl@ss:
38120402
ID PubChem:
24882698
NACRES:
NA.23

Descrizione

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

Livello qualitativo

100

Stato

single crystal substrate

Durezza

9 mohs

Lungh. × largh. × spess.

10 mm × 10 mm × 0.5 mm

Punto di fusione

2040 °C (lit.)

Caratteristiche del semiconduttore

<0001>

Stringa SMILE

O=[Al]O[Al]=O

InChI

1S/2Al.3O
TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Categorie correlate

Caratteristiche e vantaggi

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

Proprietà fisiche

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

Stato fisico

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

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
MKCT7636
MKCS8038
MKCS3960
MKCR7006
MKCQ9033

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G Siddiqi et al.
Dalton transactions (Cambridge, England : 2003), 44(32), 14349-14353 (2015-07-23)
A simple one-step and gram-scale synthesis of [Au5Mes5] from AuCl3 was developed, and this molecular precursor was used to generate Au nanoparticles on SiO2 and Al2O3. While [Au5Mes5] does not react with surface silanols and is only physisorbed, its incipient
Chien-Chih Lin et al.
Nanoscale, 5(17), 8090-8097 (2013-07-25)
We demonstrated a promising route for enhancing temperature sensitivity, improving saturation voltage, and reducing power consumption of the MOS(p) tunneling temperature sensors by introducing ultrathin Al2O3 into the dielectric stacks. Detailed illustrations of the working mechanism and device concept are
Jaakko Akola et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10129-10134 (2013-06-01)
Glass formation in the CaO-Al2O3 system represents an important phenomenon because it does not contain typical network-forming cations. We have produced structural models of CaO-Al2O3 glasses using combined density functional theory-reverse Monte Carlo simulations and obtained structures that reproduce experiments
Colin J Ingham et al.
Biotechnology advances, 30(5), 1089-1099 (2011-08-23)
Porous aluminum oxide (PAO) is a ceramic formed by an anodization process of pure aluminum that enables the controllable assembly of exceptionally dense and regular nanopores in a planar membrane. As a consequence, PAO has a high porosity, nanopores with
Linda Önnby et al.
Chemosphere, 113, 151-157 (2014-07-30)
We have investigated the oxidation of inorganic As(III) with H2O2 catalysed by Al2O3, using X-ray absorption near-edge structure and extended X-ray absorption fine structure spectroscopy. The effects of different reaction conditions (pH, time and initial H2O2 concentration) were also studied
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