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Contact Details


Chonghong Industries(Microwork)Ltd.

1803,2006,Huachuang Intl Commerce Building

Honghuang 10th Road Jiangbei District 

Chongqing China 400020

Tel: (0086-023) 67937146
Fax: (0086-023) 89119130 
Cellphone:0086-18623135040

Spinel

Physical Properties

Crystalline Structure

Cubic Single Crystal

Composition

MgO*3.5AL2O3

Purity

99.99%

Cleavage

-

Density

3.61 g/cm3

Disclosation Density

109-108/m2

Thermal Properties

Melting Point

2300K-2330K

Softening Point

2070K

Specific Heat

7.9*102 J/Kg*K at 300K

Thermal Conductivity

-

Thermal Expansion

5.9*10-6/K

Mechanical Properties

Hardness

Mohs8,Knoop 1175-1380

Youngs Modulus

-

Modulus of Rupture

-

Compressive Strength

-

Tensile Strength

-

Poissons constant

-

Chemical Properties

Acids and alkalis attack

0 at Room temperature

Porosity

0

Electrical Properties

Dielectric Constant

8-9

Electrical Resistivity

-

Optical Properties

Refractive Index nD at 0.5893μm

1.727

Dispersive Power(nF-nC)

0.012

Transmission,Disc Thickness

5 mm

-Visible Light

-

-Infrared

85% 1μm

-Ultraviolet

-