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MgAl2O4 Magnesium Aluminate Spinel / Microwave Devices Single Crysta Substrates

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-MgAl2O4Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Name: MgAl2O4 Crystal Substrates Perpendicular: 5
Surface Quality: 10/5 Wavefront Distortion: /4 @632nm
High Light:

gallium gadolinium garnet

,

mgal2o4 spinel


Product Description

Description

Magnesium Aluminate (MgAl2O4 or spinel) single crystalsare widely used for bulk acoustic wave and microwave devices and fast IC epitaxial substrates. MgAl2O4 is an attractive material for uses in a wide range of optical, electronic and structural applications including windows and lenses, which require excellent transmission from the visible through to the mid IR. Theoretical transmission is very uniform and approaches 87% between 0.3 to 5 microns. Transmission characteristics rival that of ALON and sapphire in the mid-wave IR, making it especially attractive for the ever-increasing performance requirements of current and next-generation IR imaging systems.

It is also found that MgAl2O4 is a good substrate for III-V nitrides device. Spinel (MgAl2O4) is one candidate for such GaN LDs substrate. The crystallographic structure of MgAl2O4 is a spinel type (Fd3m), and its lattice constant is 8.083A. MgAl2O4 is a relatively low-cost substrate material, which has been successfully applied to the growth of high quality GaN films. MgAl2O4 is cleaved on the (100) plane. GaN LD cavities have been obtained by simply cleaving MgAl2O4 substrates along the (100) direction, which will also work well for ZnO. MgAl2O4 crystal is very difficult to grow, due to the difficulty in maintaining a single phase structure.

 

Features

good optical, chemical and thermal properties

good high temperature properties

stable physical performance

 

Applications

MgAl2O4 substrate

 

Main Specification

Materials

MgAl2O4

Orientation

[100] or [100] or [111] < ±0.5°

Parallel

10

Perpendicular

5

surface Quality

10/5

Wavefront Distortion

/4 @632nm

Surface Flatness

/8 @632nm

Clear Aperture

>95%

Chamfer

<0.1×45°

Thickness/Diameter Tolerance

±0.05 mm

Maximum dimensions

dia 50×100mm

Coatings

AR/AR@940+1030HR@1030+HT@940+AR1030

 

Material characteristics

Physical and chemicalcharacteristics

Chemical formula

MgAl2O4

Crystal structure

cubic: m3m

Lattice parameters,

a = 8.083

Melting Point(℃)

2130°C

Density, g/cm3

3.61 g/cm3

Transmission Range

0.215.3 m

Refractive index

1.8245 @0.8 m,

Mohs hardness

8

Thermal conductivity at 25°C, Wxcm-1xK-1

14.0 W/(mK)

Thermal expansion coefficient

7.45×10-6/K

Phase Velocity

6500 m/s at (100) shear wave

Propagation loss

6.5 dB/ms

Specific Heat

0.59 W.s/g/K

 

Contact Details
june

Phone Number : +8618699681379