AFM Mica Discs

Available in four different diameters.

All prices exclude VAT.

Description
Technical Data

Highest quality grade V1 mica, 0.21mm (0.0085”) thick. Interleaved, in packages of 10. Can be mounted on AFM/STM discs. Available in four diameters: 10mm (0.39"), 12mm (0.47"), 15mm (0.59") and 20mm (0.79")

PHYSICAL PROPERTIES OF MICA GRADE V1
Characteristic	Unit	Muscovite
Colour		Ruby / Green
Density	gm/cm³	2.6 - 3.2
Density	lb/ln³	0.095-0.116
Specific Heat		0.21
Hardness	Moh Scale	2.8 - 3.2
Hardness	Shore Test	80 - 105
Optic Axial Angle		55 - 75
Tensile Strength	kgf/cm²	about 1750
Tensile Strength	lbf/in²	about 25000
Shear Strength	kgf/cm²	2200 - 2700
Shear Strength	lbf/in²	31000 - 38000
Compression Strength	kgf/cm²	1900 - 2850
Compression Strength	lbf/in²	27000 - 32000
Modulus of Elasticity	kgf/cm² x 10^-3	1400 - 2100
Modulus of Elasticity	lbf/in² X 10^-6	20 - 30
Coefficient of expansion per °C perpendicular to cleavage plane		9 X 10^-6 - 36 X 10^-6
Calcining Temperature	C	700 - 800
Calcining Temperature	F	1290 - 1470
Maximum operating temperature	C	500 - 600
Maximum operating temperature	F	930 - 1110
Thermal conductivity
Perpendicular to cleavage planes	Gm.cal/sec/cm²/C/cm	about 0.0013
Perpendicular to cleavage planes	BTU/hr/ft²/0f/ft	about 0.31
Parallel to cleavage planes	Gm.cal/sec/cm²/C/cm
Parallel to cleavage planes	BTU/hr/ft²/0f/ft
Water of constitution %		4.5
Moisture absorption		Very low
Apparent electric strength	0.001" to 0.003" KV/mm	120 - 200
Apparent electric strength	thick Volts per 0.001"	3000 - 5000
R.M.S. at 15° C (60°F)	0.01" to 0.05" KV/mm	40 - 80
R.M.S. at 15° C (60°F)	thick Volts per 0.001"	1000 - 2000
Permittivity at 15°C(60^oF)		07-Jun
Power Factor (loss tangent)	@ 15° C (60° F)	0.0001 - 0.0004
Volume Resistivity	25° C (77° F) ohm cm	40 x 10¹³-2 x 10¹⁷
Acid reaction		Affected by Hydrofluoric Acid

Description	Code	Stock	Unit	Price
Mica Disc 10mm V1 Pk10	AGF7013	In Stock	EA	£12.44
Mica Disc 12mm V1 Pk10	AG50-12	In Stock	EA	£17.37
Mica Disc 15mm V1 Pk10	AG50-15	Lead time: 14 days	EA	£20.02
Mica Disc 20mm V1 Pk10	AG50-20	In Stock	EA	£27.47