Boron carbide particle fabrication by pulsed laser irradiation of boron particle dispersed in organic solvent with various wavelengths

抄録

B₄C spherical particles were fabricated by laser irradiation at various wavelengths (355, 532, and 1064 nm) of B dispersed in organic solvents. Obtained B₄C yields were 78, 90, and 84% in ethanol and 68, 82 and 65% in ethyl acetate by irradiation at 355, 532 and 1064 nm. The highest B₄C yield was obtained at 532 nm in each solvent. Important factors for large B₄C yield were considered to be laser irradiation at long wavelength and large absorbance.