The possibility of the employment of solar energy concentrated by Fres
nel lens is investigated in order to synthesize materials by gas-solid
reaction. These first results are compared by two similar techniques
as high power laser and xenon are lamp. The TiN coatings obtained with
xenon are lamp and Fresnel lens are homogenous, without pol es or def
ects, with a uniform thickness of about 6 (m for treatments of 2 min.
The good quality of the TIN coating for all the testing conditions was
confirmed by the x-ray diffraction measurements.