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934062

Sigma-Aldrich

Oxyde d′aluminium

greener alternative

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

Synonyme(s) :

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

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About This Item

Formule linéaire :
Al2O3
Numéro CAS:
Poids moléculaire :
101.96
Numéro MDL:
Code UNSPSC :
12352311
Nomenclature NACRES :
NA.21

Niveau de qualité

Pureté

99.9% trace metals basis

Forme

nanopowder

Composition

Al2O3

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Design for Energy Efficiency
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Taille moy. des particules

135 nm

Taille des particules

135 nm

Pf

2040 °C (lit.)

Masse volumique apparente

0.18 g/cm3

Application(s)

battery manufacturing

Autre catégorie plus écologique

Chaîne SMILES 

O=[Al]O[Al]=O

InChI

1S/2Al.3O

Clé InChI

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Description générale

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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Application

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.

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Interface and Material Characterization of Thin ALD-Al2O3 Layers on Crystalline Silicon
Naumann V, et al.
Energy Procedia, 27, 312-318 (2012)
Al2O3-coated LiCoO2 as cathode material for lithium ion batteries
Liu L, et al.
Solid State Ionics, 152-153, 341-346 (2002)
Effect of Al2O3 Coating on Stabilizing LiNi0.4Mn0.4Co0.2O2 Cathodes
Wise A M, et al
Chemistry of Materials, 27, 6146-6154 (2015)

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