True size distribution of simple polyhedral particles obtained from TEM images of extraction replicas

The projected shape and size of anisotropic particles imaged using transmission electron microscopy depends on the particle orientation with respect to the electron beam. To be of most use, the size distribution of these particlesʹ projected images must be converted to their true three-dimensional size distribution. The means to make such a conversion from the projected images obtained from extraction replicas is presented for particles with a constant aspect ratio randomly oriented in their original matrix.