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Formula: Muscovite Mica
Form: Disk
Material: Potassium Aluminosilicate
CAS Number: 1327-44-2
Commodity: Ceramics
Colour:
Clear Ruby
Potassium Aluminosilicate disks are part of our diverse range of materials. These disks are made from potassium aluminosilicate glass, known for its high strength, hardness and chemical durability. With 4 size variations available, these disks can be customized for applications like semiconductor wafer carriers, LED substrates and laboratory equipment components. The unique properties of potassium aluminosilicate make these disks well-suited to demanding scientific and industrial uses where heat resistance, precision and purity are essential.
Tolerances
Disk
| Thickness | ±20% |
|---|
Material Properties for Ceramics
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Fair |
| Acids - dilute | Good |
| Alkalis | Good |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant | 6-6.6 |
| Dielectric strength( kV mm⁻¹ ) | 40-200 |
| Volume resistivity( Ohmcm ) | 10¹²@25 |
Physical Properties
| Element | Value |
|---|---|
| Refractive index | 1.5-1.6 |
| Useful optical transmission range | 450-700nm |
| Water absorption - saturation( % ) | Very Low |
| Density( gcm⁻³ ) | 2.6-3.2 |
Thermal Properties
| Element | Value |
|---|---|
| Upper continuous use temperature( C ) | 500-600 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 50@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.5-7@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 9-36@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Vickers( kgf mm⁻² ) | 02-Mar |
| Shear strength( MPa ) | 215-265 |
| Tensile strength( MPa ) | 170-300 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 190-280 |