Convert Nanonewtons per metre to Joules per square metre
Convert Nanonewtons per metre (nN/m) to Joules per square metre (J/m²) instantly and accurately.
Conversion Formula
J/m² = nN/m × 1.000000000e-9
About Nanonewtons per metre
The nanonewton per metre (nN/m) equals 10⁻⁹ N/m, encountered in AFM force spectroscopy for interfacial line-tension measurements and wetting studies on nanostructured surfaces. Colloidal particle contact lines at fluid interfaces can exert forces in the nN/m range. 1 nN/m = 10⁻³ µN/m = 10⁻⁶ mN/m.
About Joules per square metre
The joule per square metre (J/m²) equals 1 N/m exactly - the surface-fracture-energy (G_c) form used in fracture mechanics and wetting thermodynamics. Values: silica glass ~0.8 J/m²; aluminium ~1.4 J/m²; silicon carbide ~10-25 J/m²; tough metals 50-100 J/m². 1 J/m² = 1 N/m = 1 000 mJ/m².
Quick Reference Table
| Nanonewtons per metre (nN/m) | Joules per square metre (J/m²) |
|---|---|
| 1 nN/m | 1 × 10-9 J/m² |
| 2 nN/m | 2 × 10-9 J/m² |
| 5 nN/m | 5 × 10-9 J/m² |
| 10 nN/m | 1 × 10-8 J/m² |
| 25 nN/m | 2.5 × 10-8 J/m² |
| 50 nN/m | 5 × 10-8 J/m² |
| 100 nN/m | 1 × 10-7 J/m² |