Clear sapphire substrate against a outside background

Sapphire (Al2O3) substrates

Name: Sapphire (Al2O3) substrates
SKU: OCTO-SAPBS-1
Availability: InStock

€65.00 – €89.50

Sapphire (Al2O3) has good thermal properties, excellent electrical properties, and dielectric properties, Sapphire substrates are widely used in industrial applications, photonics & LED applications as well as scientific research.

Our sapphire substrates come in both clear and frosted versions. If you are in need of different dimensions or thicknesses, or if you have a high volume demand. Please contact us for a quote.

Dimensions

Thickness

Clear / Frosted

Clear

Description

Sapphire is a crystalline form of aluminum oxide (Al₂O₃) and is extremely unreactive and chemically-resistant to acids and alkalis, including hydrofluoric acid. Furthermore, sapphire is exceptionally hard with a Moh’s hardness of 9, (compared to diamond = 10 and glass ~5.5). These substrates are therefor very scratch-resistant. Last but not least it can withstand high temperatures, has high thermal conductivity, does not degrade under UV light, and features a high dielectric strength.

These characteristics, and many more, make sapphire a preferred premium material for many applications in photonics, solid-state lighting, scientific research, lenses and covers, design lighting, optical sensors, and many, many more where the environmental conditions are demanding.

Our sapphire substrates come in both clear and frosted versions. If you are in need of different dimensions or thicknesses, or if you have a high volume demand. Please contact us for a quote.

Sapphire material properties:

Property	Items	Unit	Sapphire
Physical / Optical	Color	-	Transparent
	Material		high purity Al2O3
	Water absorption	%	0
	Optical Transmission @ wavelength	-	>80% @ 310 tot 3000 nm
Electrical	Dielectric Constant (1 Mhz)	e	11.5 parallel to C-axis 9.3-9.5 perpendicular to C-axis
Electrical	Dielectric strength	MV/m or KV/mm	~40
Mechanical	Density	g/cm3	3.95-4
	Flexural Strength (Bending)	Mpa	350-395
	Young’s Modulus	Gpa	345
	Poissons ratio		0.25-0.30
	Hardness	Moh's scale	9
Thermal	Coefficient of Thermal Expansion (CTE)	ppm/°C	6-8
Thermal	Thermal Conductivity (25°C)	W/m‧K	24～25

The data shown is typical of commercially available material and is only offered for comparative purposes. The information shall not be interpreted as absolute material properties nor does it constitute a representation or warranty for which we assume legal liability. User shall determine the suitability of the material for the intended use and assumes all risk and liability whatsoever in connection therewith.