SPECIFICATIONS

Orientation

<100> or <111>±5°

Dimension

Diameter:3~12mm,H×W:2×2~30×30mm(Customized  available)

Dimension Tolerance

Φ:+0/-0.04mm,L:+0.02/-0mm

Perpendicularity

≤5′

Parallelism

≤10″

Chamfer

≤0.15±0.05mm

Surface Quality

10/5 (MIL-PRF-13830B)

Barrel

Fine Ground

Flatness

≤λ/10@632.8nm

Coating

AR coating: R<0.15%@1064nm

Damage Threshold

≥1GW/cm2@1064nm,10ns,10Hz

PHYSICAL AND CHEMICAL PROPERTIES

Crystal Structure

Cubic

Melting Point

1970°

Density

4.56±0.04g/cm³

Specific Heat

0.59J/gNaN³@0~20℃

Elastic Modulus

310GPa

Young's Modulus

3.17×104Kg/mm²

Mohs Hardness

8.5

Tensile Strength

0.13~0.26GPa

Poisson’s Ratio

0.3

Thermal Expansion Coefficients

<100>方向:8.2×10-6/K@0~250℃

<110>方向:7.7×10-6/K@0~250℃

<111>方向:7.8×10-6/K@0~250℃

Thermal Conductivity

14W/m/K@20℃

10.5W/m/K@100℃

Thermal Optical Coefficient

dn/dT=7.3×10-6/K

Refractive Index

1.82@1064nm

Solubility

Insoluble in water, slightly soluble  in ordinary acid