Low-frequency microechographic characterization of crosslinking gradients and surface profiles in photopolymer materials

Autor: D J Lougnot, L Simonin, J. P. Gonnet, J. J. Hunsinger
Rok vydání: 1998
Předmět:
Zdroj: Measurement Science and Technology. 9:58-66
ISSN: 1361-6501
0957-0233
DOI: 10.1088/0957-0233/9/1/009
Popis: The crosslinking gradients in a photopolymer material with a curved surface can be determined using acoustic techniques. The reflection coefficient at the liquid/material interface measured by low-frequency microechography is related to the mechanical properties of the material and also to the profile of the surface. This method makes it possible to remove the effect of relief and local slope and to draw up a map of mechanical properties, in particular of crosslinking density changes.
Databáze: OpenAIRE