Titanium Dioxide Rutile type
TiO2 (Rutile)
|
Chemical name
Titanium Dioxide Rutile type |
|
Mineral name
Rutile |
|
Chemical formula
TiO2 (Rutile) |
|
Melting point [°C]
1825 |
|
Crystal system
tetragonal |
|
Unit cell
a [Å]:4.593 b [Å]:4.593 c [Å]:2.959 |
|
Molecular weight [g/mol]
79.9378 |
|
Twinning
Type a) optical grade, grain boundary free; Type h) electronic grade, with domain structure |
|
Mohs hardness
6.5 - 7 |
|
Density [g/cm3]
4.26 |
|
Color
slight yellow, transparent |
|
Streak
white |
|
Refractive Index
nd=2.613 (ordinary ray); nd=2.909 (extraordinary ray); (nf - nc)=0.164 (ordinary ray); (nf - nc)=0.207 (extraordinary ray); (nc - n0)=0.296 |
|
Piezoelectric crystals |
|
Thermal expansation coefficient [(10^(-5))/K]
0.9943 || c-axis; 0.7192 ^c-axis |
|
Crystal growth method
flame fusion method |
|
Crystal growth orientation
(001), (110) |
|
Maximum size
up to Æ 1.5 inch * 2 inch length |
|
Variations
doped crystals (Fe, Nb, W, Ta, V), other dopands on request |
|
Dielectric constant
190 || c-axis; 85 ^c-axis |
|
Dielectric loss tangent (10 GHz)
17^10^(-3) |
|
Specific resistivity [W/cm]
>10^13 |
|
Transmission range
0.42-6.0 μm |
|
Orientation
(100), (110), (001) |
