Mateck Thallium Bromoiodide TIBr-TII (KRS-5)

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Mateck Thallium Bromoiodide TIBr-TII (KRS-5)
Categories:	Ceramic; Halide
Material Notes:	Optical crystals
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Physical Properties	Metric	English	Comments

Density	7.371 g/cc	0.2663 lb/in³
Solubility	0.050 ppm	0.050 ppm
a Lattice Constant	0.4125 Å	0.4125 Å

Mechanical Properties	Metric	English	Comments
Vickers Microhardness	350	350	MPa
Modulus of Elasticity	31.0 GPa	4500 ksi
Poissons Ratio	0.37	0.37
Shear Modulus	12.0 GPa	1740 ksi

Thermal Properties	Metric	English	Comments
CTE, linear	6.00 µm/m-°C @Temperature 20.0 °C	3.33 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	0.151 J/g-°C	0.0361 BTU/lb-°F
Thermal Conductivity	0.540 W/m-K @Temperature 25.0 °C	3.75 BTU-in/hr-ft²-°F @Temperature 77.0 °F
Melting Point	414.5 °C	778.1 °F

Optical Properties	Metric	English	Comments
Refractive Index	2.37	2.37	at n10.0
	2.21 @Wavelength 40000 nm	2.21 @Wavelength 40000 nm
	2.29 @Wavelength 30000 nm	2.29 @Wavelength 30000 nm
	2.38 @Wavelength 4000 nm	2.38 @Wavelength 4000 nm
	2.60 @Wavelength 600 nm	2.60 @Wavelength 600 nm
Transmission, Visible	10 % @Wavelength 650 nm	10 % @Wavelength 650 nm	Internal Transmittance
	70 % @Wavelength 670 nm	70 % @Wavelength 670 nm	Internal Transmittance
IR Transmittance	10 % @Wavelength 50000 nm	10 % @Wavelength 50000 nm	Internal Transmittance
	72 % @Wavelength 25000 nm	72 % @Wavelength 25000 nm	Internal Transmittance

Descriptive Properties
Symmetry	cubic
Symmetry Class	m3m Pm3m
Transmission Range (microns)	0.6 - 40

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CMAT055 / 87739

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