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634875

Sigma-Aldrich

Aluminiumoxid

single crystal substrate, <0001>

Synonym(e):

Saphir, Aluminiumoxid

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About This Item

Lineare Formel:
Al2O3
CAS-Nummer:
1344-28-1
Molekulargewicht:
101.96
EG-Nummer:
215-691-6
MDL-Nummer:
MFCD00003424
UNSPSC-Code:
12352303
eCl@ss:
38120402
PubChem Substanz-ID:
24882698
NACRES:
NA.23

Beschreibung

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

Qualitätsniveau

100

Form

single crystal substrate

Härte

9 mohs

L × B × Dicke

10 mm × 10 mm × 0.5 mm

mp (Schmelzpunkt)

2040 °C (lit.)

Halbleitereigenschaften

<0001>

SMILES String

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChIKey

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Verwandte Kategorien

Leistungsmerkmale und Vorteile

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

Physikalische Eigenschaften

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

Physikalische Form

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

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

nwg

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCT7636
MKCS8038
MKCS3960
MKCR7006
MKCQ9033

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Die Dokumentenbibliothek aufrufen

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
Raquel Rodríguez-González et al.
Shock (Augusta, Ga.), 42(2), 148-153 (2014-07-01)
Oxygen therapy is currently used as a supportive treatment in septic patients to improve tissue oxygenation. However, oxygen can exert deleterious effects on the inflammatory response triggered by infection. We postulated that the use of high oxygen concentrations may be
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