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Polycrystalline Alumina For Sapphire

Polycrystalline alumina for sapphire


Sapphire polycrystalline material in the preparation of embryos in a very clean environment, and the atmosphere does not contact any metal, to a purity guaranteed; single weight more than 30 kg, the specific gravity greater than 3.2g/cm3, the crucible of the same size can be placed more weight sapphire polycrystalline rods, which will help the growth of large crystals; little bubbles of the grown crystals of high quality.

Because polycrystalline billet through a high temperature melting, embryo compound gas content is low, less the grown crystal bubbles, crystals of high quality . By comparison, the use of polycrystalline growth of 60 kg blank crystal crystal material can be compared Flame pay an extra 2 inches grown crystal ingot 300-700mm, single crystal sapphire improve utilization and reduce the cost of a single crystal. Companies can diameter and height according to the user's requirements of production, meet Ky, Cz, etc. Methods for growing large sapphire requirements.

SPECIFICATION

Al2O3

≥99.999%

Phase Type

α-Al2O3

Code

5N-PCD

Appearance

Ivory-white Cylinder Crystal

Na

ppm

≤1

Mg

ppm

≤0.5

Si

ppm

≤2

K

ppm

≤0.5

Ca

ppm

≤1

Ti

ppm

≤0.2

Cr

ppm

≤0.2

Fe

ppm

≤1

Cu

ppm

≤0.5

Ga

ppm

≤1

Size

mm

On request

Bulk Density

g/cm3

≥3.2

Application

Sapphire,Laser Crystal


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