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Precision Pressed Products

Exporters, Importers, Fabricators of Mica & High Precision Mica Components


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Tel : + 91-995-860-1605, 991-088-7361, E-mail :ppproductsmica@gmail.com
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Typical Properties of Muscovite & Phlogopite Mica:


Properties Units Muscovite Phlogopite
Color   Ruby/ Green/ Amber/ Silver/Green
Density gm/cm3 2.6 - 3.2 2.6 - 3.2
Specific heat   0.21 0.20
Hardness Moh scale 2.8 - 3.2 2.3 - 3.0
  Shore Test 80-105 70-100
Breakdown voltage KV/mm 120 - 200 -
Coefficient of expansion per  °C perpendicular to cleavage plane   9 x 10-6 – 36 x 10-6 30 x 10-6 – 60 x 10-6
Thermal conductivity perpendicular to cleavage plane Gm.cal/sec/cm2/°C/cm about 0.0013 about 0.0010
  BTU/hr/ft2/0f/ft about 0.31 about 0.24
Thermal conductivity
parallel to cleavage plane
Gm.cal/sec/cm2/°C/cm   about 0.012
    BTU/hr/ft2/0f/ft about 3.0
Water of Constitution %   4.5 3.0
Moisture Absorption   Very low Very low
Volume Resistivity 25°C (77°F) ohm cm 40 x 1013 -2 x 1017 1 x 1012 -1 x 1012
Acid Reaction   Affected by hydrofluoric acid affected by sulphuric acid
Insulation resistence x1013ohm/cm 4-20000 0.1 - 10
Calcining temp °C 700-800 900-1000
Max. operating temp °C 500-600 800-1000
Optic axial angle degrees 55 - 75 5 -25
Tensile strength MN/m2 175 1000
Shear strength MN/m2 220 - 270 1000-1300
Compression strength MN/m2 190 - 285 -
Modulus of Elasticity Kgfcm2 x 10-3 lbf/in2 x 10-6 1400 – 2100 20 - 30 1400 – 2100 20 – 30
Loss tangent x10-4 1-4 10-50
Permittivity at 15°C (60°F)   6 - 7 5 -6


Precision Mica Products
» Natural Mica Discs & Slides ASTM V-1 Quality
» Mica Shields
» Natural Fabricated Mica
» Ruby & green Mica
» Transistor Mica
» Custom Fabricated Mica Parts
» Mica Stainer Cores
» Corrugated Mica
» Shellac / Silicon Bonded Washers
» Mica Sheets
» Re - Constituted Mica Phlogopite / Muscovite
» Phlogopite/Muscovite Mica Flakes & Powder
 
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