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Bio-inspired hierarchical Boron nitride (BN) nanostructure films were grown by a CVD method and two aspects of interface engineering (i.e. morphological changes and chemical functionalization) were applied to control their wetting properties. As a result, a wide range from superhydrophilicity with contact angle (CA) of ∼5° to superhydrophobicity with CA of ∼160° was obtained. Highly-rough vertical-to-substrate...
YB 4 crystals were prepared from aluminium flux under mild growth conditions. The morphology of the crystals show a correspondence with the anisotropy in hardness. That is, the (110) crystal plane with the highest hardness became large. Some of the crystals were slightly attracted by a magnet in spite of consisting of nonmagnetic elements, Y and B. This phenomenon was also observed in the...
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