Mateck Sapphire (Al 2 O 3 )

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

(Viewing data as-entered. Click here to return)

Mateck Sapphire (Al₂O₃)
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Optical crystals
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Original Value	Comments

Density	3.98 g/cc
a Lattice Constant	4.758 Å
c Lattice Constant	12.991 Å
Molecular Weight	101.96 g/mol

Mechanical Properties	Original Value	Comments
Vickers Microhardness	1940	MPa
	2200	MPa
Hardness, Mohs	9.0
Modulus of Elasticity	426.4 GPa	parallel to c-axis
	462.6 GPa	perpendicular to c-axis
Poissons Ratio	0.309
Shear Modulus	144.3 GPa	perpendicular to c-axis
	162.9 GPa	parallel to c-axis

Thermal Properties	Original Value	Comments
CTE, linear	3.24 - 5.66 µm/m-°C @Temperature -60.0 - 60.0 °C	perpendicular to c-axis
Specific Heat Capacity	0.761 J/g-°C
Thermal Conductivity	23.1 W/m-K @Temperature 46.0 °C	parallel to c-axis
	25.2 W/m-K @Temperature 46.0 °C	perpendicular to c-axis
Melting Point	2030 °C

Optical Properties	Original Value	Comments
Refractive Index	1.6679 @Wavelength 4000 nm
	1.6748 @Wavelength 4000 nm
	1.692 @Wavelength 3000 nm
	1.7015 @Wavelength 3000 nm
	1.746 @Wavelength 1000 nm
	1.7545 @Wavelength 1000 nm
	1.7771 @Wavelength 546.1 nm	at ne
Transmission, Visible	97 % @Wavelength 500 nm	Internal Transmittance
IR Transmittance	45 % @Wavelength 5000 nm	Internal Transmittance
	97 % @Wavelength 1000 nm	Internal Transmittance
	97 % @Wavelength 3000 nm	Internal Transmittance
UV Transmittance	79 % @Wavelength 200 nm	Internal Transmittance

Descriptive Properties
Cleavability	(1011)	imperfect
	(1120)
Constants of Elastic Compliance (Pa^-1)	2.2E-12	S33
	2.3E-12	S11
	4E-13	S13
	5E-13	S14
	-6.8E-12	S44
	-7E-13	S12
Symmetry	tetragon
Symmetry Class	3m
Thermal Coefficient of Refractive Index	8.8E-6 to 1.28E-5	ß0 at 3.39 microns for ±60°C
	9.9E-6 to 1.39E-5	ße at 3.39 microns for ±60°C
Thermal Stability, °C	162±8
Transmission Range (microns)	0.17 - 5

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

Users viewing this material also viewed the following:
MarkeTech Sapphire (Aluminum Oxide - Al₂O₃) Single Crystal
Mateck Sapphire Aluminium oxide Substrate, Al₂O₃
Schott Sapphire Optical Window
Mateck Fused Silica UV-VIS Grade (SiO₂)
Zircar Ceramics HC Sapphire (Single Crystal Aluminum Oxide) Hangar Clip

CMAT051 / 87735

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message