Potassium Aluminosilicate Sheet

Potassium Aluminosilicate Sheet combines the mechanical strength and thermal stability of aluminosilicate glass with the ion-exchange properties of potassium, producing a material that is strong, chemically resistant, and optically transparent. It is widely used in electronics, optics, and high-strength glazing systems where durability and clarity are essential. Applications include chemically strengthened cover glass for sensors, substrates for thin-film deposition, and protective glazing in instrumentation. Industries benefit from its resistance to thermal shock, low thermal expansion, and stable optical properties across a range of temperatures. In research, it is employed in optical coating development, microfabrication experiments, and studies on ion-exchange strengthening processes. The sheet format’s combination of mechanical durability, chemical resilience, and optical performance makes it indispensable in advanced scientific and industrial systems.

Quick Links:

Tolerance

Properties

Reference & Citations

each

Tolerances

Foil/Film/Sheet

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