1991 Photomicrography Competition

Corrosion site on a metallic thin film

Rodney Rappe

Affiliation
3M Corporation
Vadnais Heights, Minnesota, USA
Technique
Darkfield
Magnification
50x

Printed circuit board, glass fibers in resin matrix

Fred Espinosa

Affiliation
United Technologies Research Center
East Hartford, Connecticut, USA
Technique
Polarized Light
Magnification
200x

Dried biebrich scarlet solution

Eric Van Esch

Affiliation
Organon International B.V.
Oss, The Netherlands
Technique
Polarized Light
Magnification
40x