This issue covers, in the form of abstracts, the work which has been reported between the previous retrospective and the end of 2001. The choice of abstracts is guided by criteria such as accessibility, data content and description of important new techniques, phenomena or anomalies. But there is also a thorough coverage of more qualitative features of diffusion and defect phenomena, computer modelling and theory. The volume also includes, as usual, a number of invited review and experimental papers which treat a wide range of topics in the field.
The more theoretical review papers presented here cover the modelling of intergranular segregation and diffusion in alloys, as well as the impact of electron theory. The more practical aspects of diffusion are described by reviews concerning interdiffusion in coatings and long-term thermomechanical behaviour.