80nm boron nitride, sphere, white color, Powder Normally people believe that Hexagonal Boron Nitride is flate shape with crystal particle size from 500nm to 10micron. Even the smallest single crystal is flate shape. But we have developed BN with sphere like the SEM showing. And also we make XRD approve it is boron nitride.Now we can get this nano BN sphere with 96% purity.We now study on purifing ...