Mateck Cadmium Telluride (CdTe)

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Mateck Cadmium Telluride (CdTe)
Categories:	Ceramic; Sulfide/Chalcogenide
Material Notes:	Optical crystals
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Physical Properties	Metric	English	Comments

Density	5.86 g/cc	0.212 lb/in³
Solubility	0.00 ppm	0.00 ppm
a Lattice Constant	6.483 Å	6.483 Å
Molecular Weight	240.01 g/mol	240.01 g/mol

Mechanical Properties	Metric	English	Comments
Modulus of Elasticity	52.0 GPa	7540 ksi
Poissons Ratio	0.41	0.41
Shear Modulus	18.4 GPa	2670 ksi	Calculated

Thermal Properties	Metric	English	Comments
CTE, linear	4.50 µm/m-°C @Temperature 0.000 - 30.0 °C	2.50 µin/in-°F @Temperature 32.0 - 86.0 °F
Specific Heat Capacity	0.209 J/g-°C	0.0500 BTU/lb-°F
Thermal Conductivity	4.10 W/m-K	28.5 BTU-in/hr-ft²-°F
Melting Point	1092 °C	1998 °F

Optical Properties	Metric	English	Comments
Refractive Index	2.61	2.61	n20.0
	2.649	2.649	n10.0
	2.598 @Wavelength 22000 nm	2.598 @Wavelength 22000 nm
	2.629 @Wavelength 16000 nm	2.629 @Wavelength 16000 nm
	2.649 @Wavelength 10000 nm	2.649 @Wavelength 10000 nm
	2.656 @Wavelength 6000 nm	2.656 @Wavelength 6000 nm
IR Transmittance	10 % @Wavelength 800 nm	10 % @Wavelength 800 nm	Internal Transmittance
	15 % @Wavelength 35000 nm	15 % @Wavelength 35000 nm	Internal Transmittance
	55 % @Wavelength 950 nm	55 % @Wavelength 950 nm	Internal Transmittance
	70 % @Wavelength 15000 nm	70 % @Wavelength 15000 nm	Internal Transmittance

Descriptive Properties
Absorption loss (cm^-1)	0.167		at 10 microns
Symmetry	cubic
Symmetry Class	F43m
Transmission Range (microns)	2 - 25

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CMAT040 / 87724

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