Developing buoyancy materials for use in deep see media

M.LAMY, Docteur Ingénieur Commissariat à l'Energie Atomique

Mechanical and physical studies at normal and high pressures (60 Mpa) on syntactic foam Ftl 280 allowed us to characterize it on the following points :

Density ; water absorption under high pressures; triaxial compressive properties ; compressibility and buoyancy variations; traction, compression, flexural properties ; shok resistance ; etc...

These results and the ability of large bulks implament allow us to assert that the syntactic foam would be of a great interest in building large deep sea vessels (nodule project and PLA 2 engine).

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