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Key Documents

934062

Sigma-Aldrich

Aluminum oxide

greener alternative

alpha phase, nanopowder, 135 nm avg. part. size, 99.9% trace metals basis

Sinonimo/i:

α-Al2O3, Alpha-alumina, Corundum, Dialuminium trioxide, Alumina

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About This Item

Formula condensata:
Al2O3
Numero CAS:
Peso molecolare:
101.96
Numero MDL:
Codice UNSPSC:
12352311

Livello qualitativo

Saggio

99.9% trace metals basis

Forma fisica

nanopowder

Composizione

Al2O3

Caratteristiche più verdi

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

Dimens. media delle particelle

135 nm

Dimensione particelle

135 nm

Punto di fusione

2040 °C (lit.)

Densità bulk

0.18 g/cm3

applicazioni

battery manufacturing

Categoria alternativa più verde

Stringa SMILE

O=[Al]O[Al]=O

InChI

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

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Descrizione generale

Aluminum oxide, alpha phase, nanopowder is a high-purity, ultrafine powder with an average particle size of 135 nm. Alpha-phase alumina nanopowder has superior mechanical and thermal stability, high hardness, and wear resistance. Its high dielectric strength and low dielectric loss make it a suitable material for insulators and capacitors in electronic components. Additionally, its biocompatibility, bioactivity, and wear resistance make it an attractive material for biomedical applications. This product has a purity of 99.9%, making it an ideal choice for a range of industrial applications. Our aluminum oxide nanopowder is carefully manufactured to ensure consistent quality and particle size distribution, resulting in superior performance and reliability.
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Applicazioni

Alpha-phase alumina nanopowder with a purity of 99.9% finds its major applications in the production of advanced ceramics, nanocomposites, and as a catalyst support material. The high surface area and excellent dispersibility of alpha-phase alumina nanoparticles make them ideal as a reinforcing agent in nanocomposites, where they improve the mechanical, thermal, and electrical properties of the composite material. In advanced ceramics, the fine particle size of alpha-phase alumina nanopowder makes it a suitable material for use where a high degree of homogeneity is required. Alpha-phase alumina nanopowder is also used as a support material for catalysts due to its high surface area and excellent thermal stability. It is particularly attractive for catalytic applications due to its low acidity and high chemical inertness.

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


Certificati d'analisi (COA)

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Effect of Al2O3 Coating on Stabilizing LiNi0.4Mn0.4Co0.2O2 Cathodes
Wise A M, et al
Chemistry of Materials, 27, 6146-6154 (2015)
Interface and Material Characterization of Thin ALD-Al2O3 Layers on Crystalline Silicon
Naumann V, et al.
Energy Procedia, 27, 312-318 (2012)

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