IR LASER-CHEMICAL PROCESSING OF METAL-SALTS FOR PREPARATION OF OXIDESAND METAL-CONTAINING LAYERS

Citation
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
Citations number
16
Categorie Soggetti
Optics,"Physics, Applied
ISSN journal
13504495
Volume
36
Issue
1
Year of publication
1995
Pages
1 - 13
Database
ISI
SICI code
1350-4495(1995)36:1<1:ILPOMF>2.0.ZU;2-L
Abstract
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.