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Potassium Aluminosilicate Sheet

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Properties common to all products in this list

Commodity: Ceramics Material: Potassium Aluminosilicate Form: Foil/Film/Sheet Composition: KAl₂(AlSi₃O₁₀)(F,OH)₂ CAS Number: 1327-44-2
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.
Starting at $276.00 each
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Material Properties

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 ) 02-3
Shear strength( MPa ) 215-265
Tensile strength( MPa ) 170-300
Pultrusions
Element Value
Compressive strength( MPa ) 190-280
each

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Available Configurations

Properties common to all products in this list

Commodity: Ceramics Material: Potassium Aluminosilicate Form: Foil/Film/Sheet Composition: KAl₂(AlSi₃O₁₀)(F,OH)₂ CAS Number: 1327-44-2

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Tolerances

Foil/Film/Sheet
Thickness ±20%