R. Alexandrescu et al., IR LASER-CHEMICAL PROCESSING OF METAL-SALTS FOR PREPARATION OF OXIDESAND METAL-CONTAINING LAYERS, Infrared physics & technology, 36(1), 1995, pp. 1-13
The chemical processing of metal salts by the help of IR laser radiati
on is often investigated using a thermochemical approach, in which the
strong localized action of the laser beam imposes the characteristics
of the process. High-temperature gradients induced in high-absorptivi
ty salts are leading to specific morphologies and stoichiometries of t
he obtained oxides. A comparison between controlled heating and laser-
induced thermal processes points out to different kinetic functions an
d decomposition steps of the heterogeneous reactions. Results obtained
for copper, nickel and manganese salts with formation of their respec
tive oxides, are presented. An interplay between pure- and laser-therm
ally induced processes seems to interfere also in the titanium tetrach
loride decomposition on a quartz plate, with formation of metal-based
thin layers.