Spherical Alumina Powders

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Description

GNPGraystar’s Spherical Alumina is a spherical alumina powder with high thermal conductivity, good heat resistance, high electrical insulation, high hardness, and low abrasity. The spherical nature of this powder allows for high flowability and high packing density. It has Spherical Particles Ratio: ≥ 93 %

Los datos sobre este material han sido proporcionados por GNPGraystar Specialty Materials.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

General

PropertyValueComment

Densidad relativa

3.8 [-]

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Loss on Ignition

0.1 %

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max.

Rango de tamaño de partículas

2.0 - 120.0 µm

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different specifications, please refer to the table below

Tamaño de partícula D50

1.0 - 125.0 μm

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different specifications, please refer to the table below

Área superficial específica

0.02 - 1.2 m²/g

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BET, different specifications, please refer to the table below

Eléctrico

PropertyValue

Chemical properties

PropertyValueComment

Aluminio

99.8 %

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min. Al₂O₃

Hierro

0.02

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Fe₂O₃

Silicona

0.05

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SiO₂

Sodio

0.005

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Na⁺

0.02

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max. Na₂O

Technological properties

Property
Application areas

GNPGraystar’s Spherical Alumina is used in resins, rubbers, and plastics as fillers for thermal conductive sheets, fillers for molding materials, base powder for baking ceramics, blasting materials, and spacers.

Color

White, Whitness: 90

Other

Typical Sizing Specifications:


Productd50 (µm)SSA (m²/g)
2 µm2 ± 10.50 - 1.20
5 µm5 ± 10.20 - 0.40
10 µm10 ± 20.10 - 0.20
15 µm15 ± 20.10 - 0.20
20 µm20 ± 40.07 - 0.15
40 µm42 ± 50.07 - 0.15
50 µm50 ± 50.07 - 0.15
70 µm73 ± 50.06 - 0.13
90 µm90 ± 50.05 - 0.10
120 µm120 ± 50.02 - 0.10


Other/Special Sizing is available upon request.

Actual PSD & SSA also available upon request.