Phone:   +49 (0) 5971 - 4010179

E-mail:    sales@surfacenet.de

Feedback

 

Stock List Crystals & Substrates

Stock List Targets

SurfaceNet GmbH Germany (Crystals, Substrates, Service)
   product groups & services       photo gallery       site view       contact       impressum & AGB       Sitemap  

Sodium Fluoride ( NaF )

 

Crystal properties

Crystal Type

cubic

Sodium Fluoride NaF

Transmission Range

< 0.15 ... 15 m

Refractive Index

1.233 @ 10.3 m

Reflective Loss

3.6 % @ 4.0 m

Reststrahlen

35.8 m

Density.

2.726 g/cm3

Melting Point

980 C / 997 C

Molecular Weight

41.988

Thermal Conductivity

3.746 W / (m K)

Specific Heat

1088 J / (kg K) @ 0 C

Thermal Expansion

36 106 / K @ 25 C

Hardness (Knoop)

60

Youngs Modulus

64.79 GPa

Shear Modulus

55.14 GPa

Bulk Modulus

62.03 GPa

Elastic Coefficient

C11 = 90.9 / C12 = 26.4 / C44 = 12.7 GPa

Dielectric Constant

6.0 @ f = 2 MHz

Solubility in Water

4.22 g / 100 g @ 18 C

Cleavage Planes

(100)

Standard Diameter

200 mm
larger diameters on request

Application

Cherenkov-counter
AR coating material

Remarks:

very low refractive index

 Up