BNNT, LLC tubes are synthesized using the high temperature/high pressure (HTP) method, also called the pressurized vapor/condenser (PVC) method. This method produces highly flexible, large aspect ratio BNNTs with high crystallinity. Key specifications of our material are summarized in the table below.
| h-BN content | >99% (refined materials) |
| Residual Impurities | Refined materials contain <1 wt.% elemental boron |
| Tap Density | Low, ~0.25 mg/cm3 |
| Defect density | Extremely low (BNNTs flex and recover when bent) |
| Band gap | 5.7 eV (direct measurement by low energy EELS) |
| Surface area | up to 400 m2/g (by multipoint BET) |
| Network | many isolated tubes, bundles up to 5 tubes (by TEM) |
| Number of walls | 1 to 5 walls are typical, 2 or 3 walls are most common (by TEM) |
| BNNT length | up to 200 μm (by SEM), longer suspected |
Below are photos of our current puffball, powder, and mat products. (back, left to right) SP10 puffball, SP10-R puffball, SP10-R-P powder, and (front) SP10-R-M mat. The as-grown puffball material has a cotton-like appearance with a very low tap density as shown in the photo below.
