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Ensinger PEI

Titanium Dioxide, Rutile
Categories: Ceramic; Oxide; Titanium Oxide

Material Notes:

Key Words: TiO2; Titania
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Physical PropertiesMetricEnglishComments
Density 4.23 g/cc0.153 lb/in³Alternate Reference
 4.25 g/cc0.154 lb/in³Alternate Reference
a Lattice Constant 4.5937 Å4.5937 Å
c Lattice Constant 2.9618 Å2.9618 Å
Formula Units/Cell (Z) 22
Molecular Weight 79.866 g/mol79.866 g/mol
 
Mechanical PropertiesMetricEnglishComments
Hardness, Mohs 6.26.2
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00e+13 - 1.00e+18 ohm-cm1.00e+13 - 1.00e+18 ohm-cm
Magnetic Susceptibility 0.00000590.0000059cm^3/mol
Dielectric Constant  86
@Frequency 1e+8 Hz
86
@Frequency 1e+8 Hz
Perpendicular to optical axis
 170
@Frequency 1e+8 Hz
170
@Frequency 1e+8 Hz
Parallel to optical axis
Dielectric Strength 4.00 - 8.00 kV/mm102 - 203 kV/in
Dissipation Factor 0.00020 - 0.00500.00020 - 0.0050
 
Thermal PropertiesMetricEnglishComments
CTE, linear 7.14 µm/m-°C
@Temperature 20.0 °C
3.97 µin/in-°F
@Temperature 68.0 °F
polycrystalline
Thermal Conductivity 7.40 W/m-K51.4 BTU-in/hr-ft²-°Fperpendicular to c-axis, single crystal
 10.4 W/m-K72.2 BTU-in/hr-ft²-°Fparallel to c axis, single crystal
Melting Point 1855 °C3371 °F
 
Optical PropertiesMetricEnglishComments
Refractive Index 2.6092.609η α
 2.902.90η β
UV Transmittance 10 %10 %90% absorption at 360 µm; polycrystalline
Reflection Coefficient, Visible (0-1)  0.49
@Temperature 400 °C
0.49
@Temperature 752 °F
 0.95 - 0.96
@Temperature 500 °C
0.95 - 0.96
@Temperature 932 °F
 
Descriptive Properties
ColorWhite
Crystal StructureTetragonalP4/mnm

References for this datasheet.

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