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High Purity Alumina Polycrystal Ingot

The high-purity aluminum oxide powder is white powder with uniform particle size, easy dispersion, stable chemical properties, moderate high-temperature shrinkage property and good sintering performance; High conversion and low sodium content.

DETAIL

Serial No.

Item

Unit

     Product Model and Value

RB-L-1

RB-L-2

RB-L-3

RB-L-4

1

Appearance

 

White powder White block Spheric particle Transparent crystal

2

Al2O3

%

≥99.998

≥99.998

≥99.998

≥99.999

3

Na

ppm

≤1

≤1

≤1

≤1

4

Fe

ppm

≤1

≤2

≤1

≤1

5

Ca

ppm

≤2

≤2

≤2

≤2

6

Si

ppm

≤2

≤3

≤3

≤2

7

Cu

ppm

≤1

≤1

≤1

≤1

8

Mg

ppm

≤1

≤1

≤1

≤1

9

Ti

ppm

≤1

≤1

≤1

≤1

10

Cr

ppm

≤1

≤1

≤1

≤1

11

Loss on ignition L.O.I

%

≤0.5

/

/

/

12

Loose specific gravity

g/cm3

0.25~0.8

/

1.8~2.2

3.5~3.7

13

Specific surface area BET

m2/g

3~6

/

/

/

14

Geometric dimensions

mm

5~20um

φ50×15  

φ1~2

As required

15

Remarks The geometric dimensions can be adjusted according to customer requirements

High purity aluminum oxide powder

High temperature shrinkage

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