Expodemada

Company Description

Color:Amber/ Silver/Green
Density:2.6 - 3.2
Specific heat:0.20
Hardness:2.3 - 3.0
Coefficient of expansion per? perpendicular to cleavage plane:30 x 10-6 ? 60 x 10-6
Thermal conductivity perpendicular to cleavage plane: about 0.0010
Thermal conductivity:about 0.012
parallel to cleavage plane:0.012
Water of Constitution %:3.0
Moisture Absorption:Very low
Volume Resistivity:1 x 1012 -1 x 1012
Acid Reaction:affected by sulphuric acid
Insulation resistence:0.1-10
Calcining temp:900-1000?
Max. operating temp:800-1000?
Optic axial angle:5-25?
Tensile strength:1000MN/m2
Shear strength:1000-1300MN/m2
Modulus of Elasticity:1400 ? 2100 20 ? 30
Loss tangent:10-50
Permittivity at 15? (60?):5-6