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 %

Diese Materialdaten wurden von GNPGraystar Specialty Materials zur Verfügung gestellt

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Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

Ashby charts

Eigenschaften

Allgemein

PropertyValueComment

Loss on Ignition

0.1 %

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max.

Partikelgröße D50

1.0 - 125.0 μm

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different specifications, please refer to the table below

Partikelgrößenbereich

2.0 - 120.0 µm

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different specifications, please refer to the table below

Relative Dichte

3.8 [-]

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Spezifische Oberfläche

0.02 - 1.2 m²/g

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BET, different specifications, please refer to the table below

Elektrisch

PropertyValue

Chemical properties

PropertyValueComment

Aluminium

99.8 %

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min. Al₂O₃

Eisen

0.02

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Fe₂O₃

Natrium

0.005

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Na⁺

0.02

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max. Na₂O

Silizium

0.05

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SiO₂

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.