Rutile TiO2
Download
Transmission Range
0.43 to 5 μm
Refractive Index
No= 2.555 at 0.69 μm (1) (2)
Reflection Loss
30% at 2 μm (2 surfaces)
Absorption Coefficient
n/a
Reststrahlen Peak
n/a
dn/dT
n/a
dn/dμ = 0
2.81 μm
Density
4.252 g/cc
Melting Point
1386°C
Thermal Conductivity
12.5 (para) 8.7 (perp) W m-1 K-1
Thermal Expansion
9.2 (para) 7.1 (perp) x 10-6 /°C
Hardness
Knoop 879 with 500g indenter
Specific Heat Capacity
711 J Kg-1 K-1
Dielectric Constant
160 at 1 MHz
Youngs Modulus (E)
n/a
Shear Modulus (G)
n/a
Bulk Modulus (K)
n/a
Elastic Coefficients
C11=269;C12=177;C13=146;C33=480;C44=124
Apparent Elastic Limit
4.8 MPa (700psi)
Poisson Ratio
0.28
Solubility
Insoluble in water
Molecular Weight
79.9
Class/Structure
Tetragonal P42/mnm (#135) Rutile structure.
| µm | No | Ne |
|---|---|---|
| 0.436 | 2.853 | 3.216 |
| 0.492 | 2.725 | 3.051 |
| 0.496 | 2.718 | 3.042 |
| 0.546 | 2.652 | 2.958 |
| 0.577 | 2.623 | 2.921 |
| 0.579 | 2.621 | 2.919 |
| µm | No | Ne |
|---|---|---|
| 0.589 | 2.616 | 2.903 |
| 0.691 | 2.555 | 2.836 |
| 0.708 | 2.548 | 2.826 |
| 1.01 | 2.484 | 2.747 |
| 1.530 | 2.454 | 2.710 |
| 2.42 | 2.40 | 2.59 |
| µm | No | Ne |
|---|---|---|
| 3.38 | 2.41 | 2.58 |
| 3.79 | 2.39 | 2.57 |
| 4.28 | 2.34 | 2.51 |
| 4.89 | 2.32 | 2.49 |
| 5.73 | 2.24 | 2.43 |
Rutile is grown by the Czochralski method up to 25mm diameter and up to 80mm long.
REFERENCES:
(1) Handbook Optical Constants, ed Palik, V1, ISBN 0-12-544423-6
(2) Shenoy; IEE Poceedings-J, Vol. 139, No. 2, Apr 1992