COPPER OXIDES OBTAINED BY CO2-LASER IRRADIATION OF COPPER-SALTS

Various copper salts have been irradiated with the help of a continuou s wave CO2 laser. In other experiments the same salts have been decomp osed under a controlled heating rate, in a thermal balance, and copper oxide crystallites have been detected as the final product of both ty pes of experiment. The measurements of crystallites performed with the help of x-ray diffraction exhibited differences between the two types of oxides: those obtained by laser irradiation as compared with the o xides obtained by thermal heating. The magnitude of this difference se ems to depend on the laser quanta absorptivity of the initial salts. T he results are consistent with those obtained previously on nickel oxi des.