This book presents a physical approach to the diffraction phenomenon and its applications in materials science.

An historical background to the discovery of X-ray diffraction is first outlined. Next, Part 1 gives a description of the physical phenomenon of X-ray diffraction on perfect and imperfect crystals. Part 2 then provides a detailed analysis of the instruments used for the characterization of powdered materials or thin films. The description of the processing of measured signals and their results is also covered, as are recent developments relating to quantitative microstructural...

Ce travail est consacrA(c) A l'A(c)laboration par voie sol-gel de gels et de couches minces de SnO2 A partir d'alkoxydes et de sels d'A(c)tain modifiA(c)s. L'A(c)tude de la gA(c)lification a concernA(c) plus particuliA]rement les gels prA(c)parA(c)s dans un solvant mixte toluA]ne/isopropanol. Bien que la cinA(c)tique de gA(c)lification soit considA(c)rablement influencA(c)e par le taux de complexation et par la concentration en alkoxyde, ces deux paramA]tres n'ont pas d'effet notable sur la structure finale des gels. Au contraire, cette derniA]re est remarquablement dA(c)pendante du taux de...