MobiSurf
Multiscale In Situ Measurements of Three-Dimensional Surface States
For over twenty years, three-dimensional topographic characterization has revolutionized the understanding of physical, mechanical and chemical surface mechanisms (tribology, gloss, wear, adhesion, machinability, appearance, corrosion, etc.)
.The various topography measuring devices are bulky and require a controlled environment both from an air cleanliness point of view and from a vibration side. As a result, measurements can only be carried out in the laboratory on samples of limited size and shape. These devices are therefore inadequate for measuring surface conditions in situ. However, in many cases, it remains impossible to extract a sample to measure the latter (part too massive, rapid in situ measurement, multi-site measurements...). There are two possible alternatives: using replica surfaces or a portable 3D roughness tester. We then propose to test the quality of the replicas according to the various possible materials and application conditions. Similarly, we propose to draw up specifications for a portable 3D roughness tester, and to design and manufacture it. We will then test the reliability of two in situ measurement principles.