Freeze-etching of dispersions without contamination of the fracture faces.
The physical processes occuring while the fracture face of a dispersion is being freeze-etched are described and the resulting opportunities for elimination of contamination phenomena are discussed. An anticontamination device which can be used in combination with a drop freeze-fracture apparatus is described. The main advantages of the device, high effectiveness and great simplicity, are demonstrated by several practical examples.
D005613:Freeze Etching / Q000295:instrumentation* / Q000379:methods