Platelet calcined aluminum oxide 3UM 5UM 7UM Platelet alumina

Plate Calcined Alumina polishing powder is made of high-quality industrial alumina powder as raw material, and processed by a special production process. The crystal shape of the produced alumina polishing powder is hexagonal flat like tabular shape, so it is called Platelet Alumina or Tabular Alumina.

$4,600.00$5,000.00 / MT

Production Introduction

The alumina purity of the plate alumina is more than 99%, and it has the characteristics of heat resistance, acid and alkali corrosion resistance and high hardness. Different from the traditional abrasive spherical particles, the bottom surface of the flat alumina is flat, and the particles fit the surface of the workpiece during grinding, which produces a sliding grinding effect, which avoids the sharp corners of the particles from scratching the surface of the workpiece. On the other hand, the plate alumina in grinding, the grinding pressure is evenly distributed on the surface of the particles, the particles are not easily broken, and the wear resistance is improved, thereby improving the grinding efficiency and surface finish.

Chemical composition

ChemicalGuarantee ValueTypical Value
Al2O3≥99.0%99.36%
SiO2<0.2%0.017%
Fe2O3<0.1%0.03%
Na2O<0.6%0.35%

 

Physical properties

Materialα-Al2O3
ColorWhite
Specific gravity≥3.9g/cm3
Mohs’Hardness9.0

 

 

Available Sizes

TypeD3(um)D50(um)D94(um)
CA4550.5-56.233-38.520.7-24.5
CA4039-44.627.7-31.718-20
CA3535.4-39.823.8-27.215-17
CA3028.1-32.319.2-22.313.4-15.6
CA2524.4-28.216.1-18.79.6-11.2
CA2020.9-24.113.1-15.38.2-9.8
CA1514.8-17.29.4-115.8-6.8
CA1211.8-13.87.6-8.84.5-5.3
CA098.9-10.55.9-6.93.3-3.9
CA056.6-7.84.3-5.12.55-3.05
CA034.8-5.62.8-3.41.5-2.1

 

Product applications

1) Electronics industry: grinding and polishing of semiconductor monocrystalline silicon wafers, quartz quartz crystals, compound semiconductors (crystalline gallium, phosphating nano).

2) Glass industry: grinding and processing of crystal, quartz glass, kinescope glass shell screen, optical glass, liquid crystal display (LCD) glass substrate, and quartz crystal.

3) Coating industry: special coatings and fillers for plasma spraying.

4) Metal and ceramic processing industry: precision ceramic materials, sintered ceramic raw materials, high-grade high-temperature coatings, etc.

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