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R Menold

Publications and source records attributed to R Menold.

5 recordsLinked to original sources

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.

Freeze Etching↗

Freeze-fracturing of dispersions.

In the last few years freeze-fracturing has proved to be a useful method for the investigation of dispersions. The freeze-fracture technique provides, above all, information on the arrangement of the colloidal particles in the liquid medium (e.g. on the state of agglomeration). Furthermore, it leads to conclusions about the structure, shape and size of the colloidal particles. The principles and applications particularly of the so-called drop-freeze-fracture technique are briefly described.

Crystallization↗